About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As the R&D Hardware Test & Development Manager, you will manage a diverse team of R&D engineers with a broad array of technical backgrounds and expertise, whose mission is to collaboratively support the development, testing, and delivery of the technology needed to provide fusion energy to the world.
Your team works closely with all other technical organizations including Engineering, Production, Radiation and Nuclear Safety, and Science. R&D Dev Ops engineers drive testing and development initiatives needed to close and validate engineering designs and advance next generation technologies. Projects range from pulsed HV testing of electromagnets to materials characterization in high radiation environments. You will report to our R&D manager, onsite at our Everett, WA office.
You Will:
Oversee the design and execution of technology test and development initiatives, allocating engineering bandwidth and ownership as needed to ensure the team is delivering testing results on time and to sufficient rigor.
Partner with peer leaders to drive cross-functional development initiatives, setting the standard for effective collaboration and ensuring communication across teams meets a high bar.
Champion your team's initiatives with senior leaders, clearly articulating their value and securing stakeholder alignment and buy-in.
Support individual contributors in their career growth, guiding development of both technical and soft skills.
Proactively identify resource constraints and scale the team through targeted hiring and growth to ensure mission success.
Required Skills:
B.S. in Physics or Engineering and 8+ years or M.S. with 4+ years of relevant experience
Minimum 2+ years managing engineers doing technology testing and development
Experience using first principles thinking to develop test initiatives, perform root cause failure analysis, and solve complex technical problems
Proven track record of delivering technology testing and development results
Experienced at driving rapid iterative testing to inform design
Excellent communication skills that drive effective cross-team collaboration
Ability to anticipate, strategically plan for and grow a team to meet the needs of future scope
Preferred Skills:
Technical expertise in one of the following areas: vacuum systems, pressurized systems, high-voltage systems, or pulsed-power technologies
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs the R&D Hardware Test & Development Manager, you will manage a diverse team of R&D engineers with a broad array of technical backgrounds and expertise, whose mission is to collaboratively support the development, testing, and delivery of the technology needed to provide fusion energy to the world.\n\nYour team works closely with all other technical organizations including Engineering, Production, Radiation and Nuclear Safety, and Science. R&D Dev Ops engineers drive testing and development initiatives needed to close and validate engineering designs and advance next generation technologies. Projects range from pulsed HV testing of electromagnets to materials characterization in high radiation environments. You will report to our R&D manager, onsite at our Everett, WA office.\n\nYou Will:\n\n - Oversee the design and execution of technology test and development initiatives, allocating engineering bandwidth and ownership as needed to ensure the team is delivering testing results on time and to sufficient rigor.\n\n - Partner with peer leaders to drive cross-functional development initiatives, setting the standard for effective collaboration and ensuring communication across teams meets a high bar.\n\n - Champion your team's initiatives with senior leaders, clearly articulating their value and securing stakeholder alignment and buy-in.\n\n - Support individual contributors in their career growth, guiding development of both technical and soft skills.\n\n - Proactively identify resource constraints and scale the team through targeted hiring and growth to ensure mission success.\n\nRequired Skills:\n\n - B.S. in Physics or Engineering and 8+ years or M.S. with 4+ years of relevant experience\n\n - Minimum 2+ years managing engineers doing technology testing and development\n\n - Experience using first principles thinking to develop test initiatives, perform root cause failure analysis, and solve complex technical problems\n\n - Proven track record of delivering technology testing and development results\n\n - Experienced at driving rapid iterative testing to inform design\n\n - Excellent communication skills that drive effective cross-team collaboration\n\n - Ability to anticipate, strategically plan for and grow a team to meet the needs of future scope\n\nPreferred Skills:\n\n - Technical expertise in one of the following areas: vacuum systems, pressurized systems, high-voltage systems, or pulsed-power technologies\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"e42c934d-0271-4071-b722-5e0edcad6495","title":"Senior Technologist - Materials","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-06T22:47:08.824+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e42c934d-0271-4071-b722-5e0edcad6495","applyUrl":"https://jobs.ashbyhq.com/helion/e42c934d-0271-4071-b722-5e0edcad6495/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will apply advanced technical expertise to support engineering research, development, and manufacturing through hands-on materials testing, analytical system operation, and precision fabrication. In this role, you will independently execute complex test workflows, configure and maintain equipment, and troubleshoot technical issues to ensure diagnostic readiness and high-quality results. You will collaborate closely with engineers to translate test requirements into reliable, real-world setups, while using critical thinking and sound judgment to solve problems and improve processes. You will also mentor junior Technologists and communicate findings through clear data analysis and reporting that informs engineering decisions.
You Will:
Operate, maintain, and troubleshoot materials testing and analytical equipment, including load frames, profilometers, durometers, microscopy systems, and SEM
Execute test plans in accordance with ASTM standards or collaborate with engineers to develop custom test methodologies, including sample preparation, fixturing, and data analysis
Configure and validate test setups to ensure accurate, repeatable results and alignment with engineering intent
Document procedures, calibration activities, and test results with clarity and discipline to support quality and traceability
Analyze and communicate data effectively to inform design decisions and improve system performance
Lead troubleshooting efforts across mechanical systems, instrumentation, and workflows, identifying root causes and implementing corrective actions
Design and fabricate fixtures and components to support testing needs, ensuring precision and reliability
Provide mentorship and technical guidance to early career Technologists on equipment operation, fabrication techniques, and safe work practices
Develop working knowledge of radiation safety practices, including contamination control, monitoring techniques, and controlled-area workflows
Partner with engineers to interpret requirements and translate them into robust testing processes that generate meaningful performance data
Required Skills:
8+ years of hands-on experience operating mechanical testing systems and analytical instrumentation in a similar technical environment
Strong proficiency in materials testing equipment and imaging tools, including mechanical test frames and microscopy systems
Extensive hands-on fabrication experience, including fixture design, assembly, and precision measurement
Demonstrated ability to execute structured test workflows and produce reliable, high-quality data
Experience troubleshooting complex mechanical and instrumentation issues, with the ability to independently identify root causes and drive solutions
Strong technical documentation skills, with attention to procedural rigor, calibration standards, and quality control
Ability to collaborate effectively with engineers to translate design intent into practical testing solutions
Familiarity with controlled, high-risk, or radiological environments is preferred, including adherence to safety and contamination control protocols
Strong critical thinking, problem-solving, and decision-making skills in fast-paced technical environments
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will apply advanced technical expertise to support engineering research, development, and manufacturing through hands-on materials testing, analytical system operation, and precision fabrication. In this role, you will independently execute complex test workflows, configure and maintain equipment, and troubleshoot technical issues to ensure diagnostic readiness and high-quality results. You will collaborate closely with engineers to translate test requirements into reliable, real-world setups, while using critical thinking and sound judgment to solve problems and improve processes. You will also mentor junior Technologists and communicate findings through clear data analysis and reporting that informs engineering decisions.\n\nYou Will:\n\n - Operate, maintain, and troubleshoot materials testing and analytical equipment, including load frames, profilometers, durometers, microscopy systems, and SEM\n\n - Execute test plans in accordance with ASTM standards or collaborate with engineers to develop custom test methodologies, including sample preparation, fixturing, and data analysis\n\n - Configure and validate test setups to ensure accurate, repeatable results and alignment with engineering intent\n\n - Document procedures, calibration activities, and test results with clarity and discipline to support quality and traceability\n\n - Analyze and communicate data effectively to inform design decisions and improve system performance\n\n - Lead troubleshooting efforts across mechanical systems, instrumentation, and workflows, identifying root causes and implementing corrective actions\n\n - Design and fabricate fixtures and components to support testing needs, ensuring precision and reliability\n\n - Provide mentorship and technical guidance to early career Technologists on equipment operation, fabrication techniques, and safe work practices\n\n - Develop working knowledge of radiation safety practices, including contamination control, monitoring techniques, and controlled-area workflows\n\n - Partner with engineers to interpret requirements and translate them into robust testing processes that generate meaningful performance data\n\nRequired Skills:\n\n - 8+ years of hands-on experience operating mechanical testing systems and analytical instrumentation in a similar technical environment\n\n - Strong proficiency in materials testing equipment and imaging tools, including mechanical test frames and microscopy systems\n\n - Extensive hands-on fabrication experience, including fixture design, assembly, and precision measurement\n\n - Demonstrated ability to execute structured test workflows and produce reliable, high-quality data\n\n - Experience troubleshooting complex mechanical and instrumentation issues, with the ability to independently identify root causes and drive solutions\n\n - Strong technical documentation skills, with attention to procedural rigor, calibration standards, and quality control\n\n - Ability to collaborate effectively with engineers to translate design intent into practical testing solutions\n\n - Familiarity with controlled, high-risk, or radiological environments is preferred, including adherence to safety and contamination control protocols\n\n - Strong critical thinking, problem-solving, and decision-making skills in fast-paced technical environments\n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"0cbe8d0c-3a85-483f-b9e0-7460d6f3bd1b","title":"Senior Electrical Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2024-12-19T22:46:49.734+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/0cbe8d0c-3a85-483f-b9e0-7460d6f3bd1b","applyUrl":"https://jobs.ashbyhq.com/helion/0cbe8d0c-3a85-483f-b9e0-7460d6f3bd1b/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. You will report to the Senior Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.
You Will:
Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils
Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV
Develop system architectures and collaborate with designers on schematics and installation drawings
Lead design reviews to validate cost-effective, scalable, and reliable solutions
Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds
Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects
Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion
Required Skills:
8+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field
Experience designing, fabricating, installing, and testing electronic systems
Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs
Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones
Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software
Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. You will report to the Senior Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils\n\n - Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV\n\n - Develop system architectures and collaborate with designers on schematics and installation drawings\n\n - Lead design reviews to validate cost-effective, scalable, and reliable solutions\n\n - Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds\n\n - Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects\n\n - Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion\n\nRequired Skills:\n\n - 8+ years experience in power electronics, solving complex electrical engineering problems from design to delivery\n\n - Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field\n\n - Experience designing, fabricating, installing, and testing electronic systems \n\n - Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs\n\n - Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones\n\n - Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software\n\n - Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"691cb280-44e4-449b-9734-c8b3633611d3","title":"Senior Power Electronics Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2024-12-19T22:46:50.487+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/691cb280-44e4-449b-9734-c8b3633611d3","applyUrl":"https://jobs.ashbyhq.com/helion/691cb280-44e4-449b-9734-c8b3633611d3/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will support the design, development, and optimization of the core energy management systems for Helion’s fusion generators. This includes high-voltage pulsed power delivery, energy recovery, redistribution networks, and AC grid-tie systems. In this role, you’ll drive design excellence, mentor other engineers, and contribute directly to one of the most ambitious energy challenges of our time. This is an onsite role reporting to the Senior Manager of Electrical Engineering at our Everett, WA office.
You Will:
Design, test, and troubleshoot high-voltage power systems that drive pulsed magnetic coils
Oversee procurement, construction, and commissioning of electrical systems delivering <1 ms pulses at up to 5 MA and 40 kV
Develop system architecture and collaborate on schematics and installation drawings
Lead design reviews, validating cost-effective, scalable, and reliable solutions
Support generator commissioning and operations with an eye toward improving future builds
Own engineering rigor—cost, schedule, and resource estimates—for your scope of work
Mentor teammates and contribute to technical growth across electrical and cross-functional engineering teams
Required Skills:
8+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field
Proven experience designing, fabricating, installing, and testing electronic systems
Strong working knowledge of power switching components (IGBTs, MOSFETs, SCRs)
Deep understanding of engineering principles and experience driving project delivery from design through execution
Advanced troubleshooting skills using tools like oscilloscopes, pulse generators, spectrum analyzers, and electronic loads
Proficiency in LTSpice, SIMetrix/SIMPLIS, Altium, MATLAB, and Microsoft Office
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will support the design, development, and optimization of the core energy management systems for Helion’s fusion generators. This includes high-voltage pulsed power delivery, energy recovery, redistribution networks, and AC grid-tie systems. In this role, you’ll drive design excellence, mentor other engineers, and contribute directly to one of the most ambitious energy challenges of our time. This is an onsite role reporting to the Senior Manager of Electrical Engineering at our Everett, WA office.\n\nYou Will:\n\n - Design, test, and troubleshoot high-voltage power systems that drive pulsed magnetic coils\n\n - Oversee procurement, construction, and commissioning of electrical systems delivering <1 ms pulses at up to 5 MA and 40 kV\n\n - Develop system architecture and collaborate on schematics and installation drawings\n\n - Lead design reviews, validating cost-effective, scalable, and reliable solutions\n\n - Support generator commissioning and operations with an eye toward improving future builds\n\n - Own engineering rigor—cost, schedule, and resource estimates—for your scope of work\n\n - Mentor teammates and contribute to technical growth across electrical and cross-functional engineering teams\n\nRequired Skills:\n\n - 8+ years experience in power electronics, solving complex electrical engineering problems from design to delivery\n\n - Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field\n\n - Proven experience designing, fabricating, installing, and testing electronic systems\n\n - Strong working knowledge of power switching components (IGBTs, MOSFETs, SCRs)\n\n - Deep understanding of engineering principles and experience driving project delivery from design through execution\n\n - Advanced troubleshooting skills using tools like oscilloscopes, pulse generators, spectrum analyzers, and electronic loads\n\n - Proficiency in LTSpice, SIMetrix/SIMPLIS, Altium, MATLAB, and Microsoft Office\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"09454fbe-75df-472b-adbe-016de6180fe8","title":"Senior Computational Plasma Scientist - MHD","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-02-11T23:40:08.768+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/09454fbe-75df-472b-adbe-016de6180fe8","applyUrl":"https://jobs.ashbyhq.com/helion/09454fbe-75df-472b-adbe-016de6180fe8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Senior Computational Plasma Scientist. You will communicate with engineers and scientists on wide range of topics including plasma physics; magnetic field diffusion and eddy currents; circuit response and coupling; and structural mechanics. You will report to our Manager of Computational Science at our Everett, WA office.
You Will:
Run our internal MHD code to simulate FRC dynamics for wide range of simulation conditions from the initial simulation setup to the postprocessing of the results
Calculate FRC dynamics, circuit response, and magnetic loads to help develop our fusion generators
Perform analysis to interpret experimental measurements by reproducing the experimental conditions with our internal MHD code
Collaborate with and learn from experts to expand your technical skillset and domain knowledge
Communicate simulation results and findings with accuracy and rigor to both scientists and engineers by preparing reports, presentations, and graphics
Required Skills:
PhD. in Plasma Physics, Applied Physics, Computational Physics, Nuclear Engineering, Aerospace Engineering, or a related technical field
3+ years of post-graduation experience running, analyzing, or interpreting MHD simulations in academic, national lab, or industry settings
Demonstrated ability to apply magnetic field diffusion, eddy current physics, circuit response, and transient electromagnetic effects to simulation setup, interpretation, and engineering tradeoffs
Strong understanding of FRC physics, with the ability to connect MHD simulation outputs to plasma behavior, experimental observations, and machine performance
Experience writing scripts to analyze output, parse files, and create plots in a common coding language (e.g. MATLAB, Fortran, C, Python, etc.)
Experience independently designing and executing simulation studies, including model setup, assumptions, parameter scans, validation checks, sensitivity studies, and interpretation of results
Experience using computer simulation tools for circuit dynamics, fluid dynamics, transient magnetics, or plasma dynamics
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\nWhat You Will Be Doing:\n\nHelion is hiring a Senior Computational Plasma Scientist. You will communicate with engineers and scientists on wide range of topics including plasma physics; magnetic field diffusion and eddy currents; circuit response and coupling; and structural mechanics. You will report to our Manager of Computational Science at our Everett, WA office.\n\nYou Will:\n\n - Run our internal MHD code to simulate FRC dynamics for wide range of simulation conditions from the initial simulation setup to the postprocessing of the results \n\n - Calculate FRC dynamics, circuit response, and magnetic loads to help develop our fusion generators \n\n - Perform analysis to interpret experimental measurements by reproducing the experimental conditions with our internal MHD code \n\n - Collaborate with and learn from experts to expand your technical skillset and domain knowledge \n\n - Communicate simulation results and findings with accuracy and rigor to both scientists and engineers by preparing reports, presentations, and graphics \n\nRequired Skills:\n\n - PhD. in Plasma Physics, Applied Physics, Computational Physics, Nuclear Engineering, Aerospace Engineering, or a related technical field\n\n - 3+ years of post-graduation experience running, analyzing, or interpreting MHD simulations in academic, national lab, or industry settings\n\n - Demonstrated ability to apply magnetic field diffusion, eddy current physics, circuit response, and transient electromagnetic effects to simulation setup, interpretation, and engineering tradeoffs \n\n - Strong understanding of FRC physics, with the ability to connect MHD simulation outputs to plasma behavior, experimental observations, and machine performance\n\n - Experience writing scripts to analyze output, parse files, and create plots in a common coding language (e.g. MATLAB, Fortran, C, Python, etc.) \n\n - Experience independently designing and executing simulation studies, including model setup, assumptions, parameter scans, validation checks, sensitivity studies, and interpretation of results \n\n - Experience using computer simulation tools for circuit dynamics, fluid dynamics, transient magnetics, or plasma dynamics\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"459de46a-cfc0-4efe-bc9a-c87d59038ba5","title":"Senior Mechanical Engineer, Plasma Diagnostics","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-07-14T04:31:33.645+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/459de46a-cfc0-4efe-bc9a-c87d59038ba5","applyUrl":"https://jobs.ashbyhq.com/helion/459de46a-cfc0-4efe-bc9a-c87d59038ba5/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Diagnostics Engineer on the Science team at Helion, you will help advance the design and development of next-generation diagnostic instrumentation that supports our mission to achieve fusion energy. Sitting at the intersection of mechanical design, prototyping, and scientific exploration, you'll transform early-stage concepts into robust mechanical systems that enable groundbreaking plasma diagnostics and research. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Collaborate with interdisciplinary teams that include scientists, engineers, and product designers, to develop novel mechanical solutions for experimental diagnostic devices
Own the mechanical design of diagnostic systems: define and refine requirements, troubleshoot hardware issues, and drive continuous improvements
Design, prototype, and iterate mechanical components and assemblies using CAD tools (e.g., NX, SolidWorks); perform structural and thermal analysis (e.g., ANSYS); and lead design reviews
Conduct experimental testing, collect and analyze performance data, and support root-cause analyses of mechanical failures or performance deviations
Apply lessons from historical designs, develop innovative hardware, and integrate your solutions into ongoing fusion research experiments
Continuously expand your skills and domain knowledge by learning from Helion’s technical experts and engaging with cutting-edge science and engineering
Required Skills:
Advanced degree in Mechanical Engineering with experience in plasma, laser, aero, or similar specialty
5+ years of hands-on industry experience with diagnostic equipment, laboratory instrumentation, precision sensing, or similar technologies
5+ years of experience with CAD software (e.g. NX, SolidWorks) and FEA software (e.g. ANSYS, FEMAP)
Experience applying engineering first-principles and method-based thinking to challenging first-of-a-kind designs
Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nAs a Diagnostics Engineer on the Science team at Helion, you will help advance the design and development of next-generation diagnostic instrumentation that supports our mission to achieve fusion energy. Sitting at the intersection of mechanical design, prototyping, and scientific exploration, you'll transform early-stage concepts into robust mechanical systems that enable groundbreaking plasma diagnostics and research. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.\n\nYou Will: \n\n - Collaborate with interdisciplinary teams that include scientists, engineers, and product designers, to develop novel mechanical solutions for experimental diagnostic devices \n\n - Own the mechanical design of diagnostic systems: define and refine requirements, troubleshoot hardware issues, and drive continuous improvements \n\n - Design, prototype, and iterate mechanical components and assemblies using CAD tools (e.g., NX, SolidWorks); perform structural and thermal analysis (e.g., ANSYS); and lead design reviews \n\n - Conduct experimental testing, collect and analyze performance data, and support root-cause analyses of mechanical failures or performance deviations \n\n - Apply lessons from historical designs, develop innovative hardware, and integrate your solutions into ongoing fusion research experiments \n\n - Continuously expand your skills and domain knowledge by learning from Helion’s technical experts and engaging with cutting-edge science and engineering \n\nRequired Skills: \n\n - Advanced degree in Mechanical Engineering with experience in plasma, laser, aero, or similar specialty \n\n - 5+ years of hands-on industry experience with diagnostic equipment, laboratory instrumentation, precision sensing, or similar technologies \n\n - 5+ years of experience with CAD software (e.g. NX, SolidWorks) and FEA software (e.g. ANSYS, FEMAP) \n\n - Experience applying engineering first-principles and method-based thinking to challenging first-of-a-kind designs \n\n - Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids) \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"1ab0850a-50e2-4853-8fd7-c05e9a36c20f","title":"Principal Experimental Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-08-08T18:50:36.113+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/1ab0850a-50e2-4853-8fd7-c05e9a36c20f","applyUrl":"https://jobs.ashbyhq.com/helion/1ab0850a-50e2-4853-8fd7-c05e9a36c20f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are looking for a Principal Experimental Plasma Scientist to lead the plasma diagnostic effort of Helion's fusion generators. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Own the end-to-end design and deployment of a comprehensive suite of plasma diagnostics, collaborating closely with physicists, engineers, designers, and data analysts to ensure robust, scalable instrumentation that meets both experimental and operational requirements
Integrate cross-disciplinary technical input from experts across Helion—including plasma physics, machine operations, controls, and data science—to align diagnostic capabilities with real-time operational needs and long-term scientific milestones
Lead the hands-on execution of assembly, installation, calibration, and commissioning processes for diagnostics across multiple campaigns and testbeds. Ensure high data fidelity through rigorous validation and alignment procedures
Develop foundational expertise in pre-ionization plasma diagnostics, establishing best practices and internal methodologies that inform next-generation fusion device development optimized for energy gain and power conversion
Analyze diagnostic data in real time to extract actionable insights about plasma behavior, inform operational tuning, and identify opportunities for performance optimization and system redesign
Partners with leadership across the organization, contributing to strategic planning, roadmap development, and long-term technical vision
Required Skills:
Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation
10+ years of experience working in advanced laboratory environments, with extensive hands-on work involving plasma generation, plasma systems, and UHV vacuum infrastructure
Demonstrated track record using diagnostic measurements (e.g., interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics) to evaluate plasma parameters such as density, temperature, and current profiles, directly influencing system improvements
Deep expertise and unique domain knowledge in multiple areas of plasma diagnostics and fusion engineering. Recognized as a subject matter expert who operates independently
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are looking for a Principal Experimental Plasma Scientist to lead the plasma diagnostic effort of Helion's fusion generators. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office. \n\nYou Will: \n\n - Own the end-to-end design and deployment of a comprehensive suite of plasma diagnostics, collaborating closely with physicists, engineers, designers, and data analysts to ensure robust, scalable instrumentation that meets both experimental and operational requirements\n\n - Integrate cross-disciplinary technical input from experts across Helion—including plasma physics, machine operations, controls, and data science—to align diagnostic capabilities with real-time operational needs and long-term scientific milestones\n\n - Lead the hands-on execution of assembly, installation, calibration, and commissioning processes for diagnostics across multiple campaigns and testbeds. Ensure high data fidelity through rigorous validation and alignment procedures\n\n - Develop foundational expertise in pre-ionization plasma diagnostics, establishing best practices and internal methodologies that inform next-generation fusion device development optimized for energy gain and power conversion\n\n - Analyze diagnostic data in real time to extract actionable insights about plasma behavior, inform operational tuning, and identify opportunities for performance optimization and system redesign\n\n - Partners with leadership across the organization, contributing to strategic planning, roadmap development, and long-term technical vision\n\nRequired Skills: \n\n - Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation\n\n - 10+ years of experience working in advanced laboratory environments, with extensive hands-on work involving plasma generation, plasma systems, and UHV vacuum infrastructure\n\n - Demonstrated track record using diagnostic measurements (e.g., interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics) to evaluate plasma parameters such as density, temperature, and current profiles, directly influencing system improvements\n\n - Deep expertise and unique domain knowledge in multiple areas of plasma diagnostics and fusion engineering. Recognized as a subject matter expert who operates independently\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a45f7359-1915-4646-b593-4d0397d5aa6f","title":"Principal Nuclear Materials Engineer","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-10-01T21:38:21.550+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a45f7359-1915-4646-b593-4d0397d5aa6f","applyUrl":"https://jobs.ashbyhq.com/helion/a45f7359-1915-4646-b593-4d0397d5aa6f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will play a key role in developing designs and materials suited for high-radiation environments, providing analysis and guidance to engineers on the behavior and performance of a wide range of materials under radiation exposure. In this onsite role, based at our Everett, WA office, you will report to the Director of Materials Science and collaborate closely with cross-functional teams to advance Helion’s mission.
You Will:
Advise engineering design decisions based on radiation effects (due to neutrons) on materials used within the radiation shield vault, e.g., metals used in magnet coils, dielectrics used for structure, and ceramics
Partner with neutronics engineers to predict dpa, analyze, model, and predict macroscopic effects on material properties including thermal conductivity, electrical resistivity, and mechanical strength. Assess system-level radiation risk
Oversee testing campaigns to quantify impact of radiation on material properties
Lead strategic projects to expand capabilities
Perform literature reviews on radiation effects on materials of interest and distill the information into summaries for non-nuclear engineers
Operate in an environment with obstacles and changing requirements. Balance risks without compromising the delivery
Partner with other internal Helion teams, external vendors, national laboratories, and universities to gather the required capabilities. Develop your network and represent Helion at technical meetings and conferences
Required Skills:
A professional understanding of radiation effects on materials, typically demonstrated by a degree in nuclear engineering, materials science, physics, or related discipline and 15+ years of hands-on work
15+ years of experience handling radioactive material
8+ years of experience working on non-aqueous corrosion and environmentally assisted degradation mechanisms (e.g., stress corrosion cracking, creep, accelerated fatigue)
8+ years of experience working on neutron interactions leading to e.g., material transmutation or helium bubble generation
8+ years of experience performing data analysis with a common coding language (Python, MATLAB, C++), data presentation, technical communication, and writing
Data presentation should include rigorous consideration of uncertainty and statistics
#LI-TM1 #LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nYou will play a key role in developing designs and materials suited for high-radiation environments, providing analysis and guidance to engineers on the behavior and performance of a wide range of materials under radiation exposure. In this onsite role, based at our Everett, WA office, you will report to the Director of Materials Science and collaborate closely with cross-functional teams to advance Helion’s mission.\n\nYou Will: \n\n - Advise engineering design decisions based on radiation effects (due to neutrons) on materials used within the radiation shield vault, e.g., metals used in magnet coils, dielectrics used for structure, and ceramics\n\n - Partner with neutronics engineers to predict dpa, analyze, model, and predict macroscopic effects on material properties including thermal conductivity, electrical resistivity, and mechanical strength. Assess system-level radiation risk\n\n - Oversee testing campaigns to quantify impact of radiation on material properties\n\n - Lead strategic projects to expand capabilities\n\n - Perform literature reviews on radiation effects on materials of interest and distill the information into summaries for non-nuclear engineers\n\n - Operate in an environment with obstacles and changing requirements. Balance risks without compromising the delivery\n\n - Partner with other internal Helion teams, external vendors, national laboratories, and universities to gather the required capabilities. Develop your network and represent Helion at technical meetings and conferences\n\nRequired Skills:\n\n - A professional understanding of radiation effects on materials, typically demonstrated by a degree in nuclear engineering, materials science, physics, or related discipline and 15+ years of hands-on work\n\n - 15+ years of experience handling radioactive material\n\n - 8+ years of experience working on non-aqueous corrosion and environmentally assisted degradation mechanisms (e.g., stress corrosion cracking, creep, accelerated fatigue)\n\n - 8+ years of experience working on neutron interactions leading to e.g., material transmutation or helium bubble generation\n\n - 8+ years of experience performing data analysis with a common coding language (Python, MATLAB, C++), data presentation, technical communication, and writing\n\n - Data presentation should include rigorous consideration of uncertainty and statistics\n\n#LI-TM1 #LI-Onsite \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"27648fb4-e835-47db-b697-06b994b1ca91","title":"HERCULES Proposal Submission Form ","department":"All Departments","team":"All Departments","employmentType":"Temporary","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-10-17T22:51:20.948+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/27648fb4-e835-47db-b697-06b994b1ca91","applyUrl":"https://jobs.ashbyhq.com/helion/27648fb4-e835-47db-b697-06b994b1ca91/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
Helion’s external funding initiative supports research that develops the materials and technologies required to scale fusion energy from initial power plants to global deployment. With over $17M in funding committed through 2028, HERCULES will support partner-driven projects across three phases:
Phase 1: $10,000 - $100,000 over 6-8 months
Phase 2: $100,000 - $500,000 over 12-24 months
Phase 3: $1,000,000 - $2,000,000 to establish a University Center of Excellence
Research topics in materials science, nuclear engineering, fuel cycle, plasma physics, and pulsed power are listed on the website. Proposals are reviewed year-round, with priority given to those received by January 5, 2026.
How it works
Complete the below application questions and submit your proposal in PDF format
Proposals must be in PDF format and limited to four pages
What to include (Maximum four pages)
Your team’s capabilities and expertise
Statement of work
List of personnel and institutions involved
Deliverables and funding breakdown
Overall project schedule
This is your chance to collaborate with Helion on the mission to deliver fusion energy.
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\nHERCULES PROPOSAL SUBMISSION FORM\n\nHelion’s external funding initiative supports research that develops the materials and technologies required to scale fusion energy from initial power plants to global deployment. With over $17M in funding committed through 2028, HERCULES will support partner-driven projects across three phases:\n\n - Phase 1: $10,000 - $100,000 over 6-8 months\n\n - Phase 2: $100,000 - $500,000 over 12-24 months\n\n - Phase 3: $1,000,000 - $2,000,000 to establish a University Center of Excellence \n\nResearch topics in materials science, nuclear engineering, fuel cycle, plasma physics, and pulsed power are listed on the website. Proposals are reviewed year-round, with priority given to those received by January 5, 2026. \n\nHow it works\n\n - Complete the below application questions and submit your proposal in PDF format\n\n - Proposals must be in PDF format and limited to four pages\n\nWhat to include (Maximum four pages)\n\n - Your team’s capabilities and expertise\n\n - Statement of work\n\n - List of personnel and institutions involved\n\n - Deliverables and funding breakdown\n\n - Overall project schedule\n\nThis is your chance to collaborate with Helion on the mission to deliver fusion energy. \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"54718170-4ad0-4b47-ab96-4dddedb1beb8","title":"High Voltage Test Technician ","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-27T18:15:15.458+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/54718170-4ad0-4b47-ab96-4dddedb1beb8","applyUrl":"https://jobs.ashbyhq.com/helion/54718170-4ad0-4b47-ab96-4dddedb1beb8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will perform high-voltage testing of production assemblies, subsystems, and components critical to Helion's fusion generators. You will implement and troubleshoot test setups, ensuring safety, quality, and throughput targets are met. You will work closely with Design Engineers, Test Engineers, and Production Technicians to validate system performance, identify issues, and continuously improve test execution. This is an onsite role that reports directly to the Production Manager at our Everett, WA office.
You Will:
Set up, configure, and execute high-voltage tests on production assemblies and prototypes
Troubleshoot electrical and mechanical issues during testing and document findings
Operate test equipment, control panels, and data acquisition systems according to defined procedures
Follow high-voltage safety protocols and maintain compliance with defined high-voltage handling and grounding standards
Collaborate with Design and Test Engineers to review test results and escalate issues or anomalies
Support the repair, development, maintenance, and calibration of test fixtures and related equipment
Record and report test data accurately, participating in post-test reviews and process improvements
Occasionally assist with prototype or experimental testing
Required Skills:
3–5 years of experience in electronics or manufacturing test environments
Familiarity with electrical systems and high-voltage safety practices
Proven ability to execute detailed test procedures safely and efficiently
Hands-on experience in test setup, troubleshooting, and use of electrical measurement tools
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will perform high-voltage testing of production assemblies, subsystems, and components critical to Helion's fusion generators. You will implement and troubleshoot test setups, ensuring safety, quality, and throughput targets are met. You will work closely with Design Engineers, Test Engineers, and Production Technicians to validate system performance, identify issues, and continuously improve test execution. This is an onsite role that reports directly to the Production Manager at our Everett, WA office.\n\nYou Will:\n\n - Set up, configure, and execute high-voltage tests on production assemblies and prototypes\n\n - Troubleshoot electrical and mechanical issues during testing and document findings\n\n - Operate test equipment, control panels, and data acquisition systems according to defined procedures\n\n - Follow high-voltage safety protocols and maintain compliance with defined high-voltage handling and grounding standards\n\n - Collaborate with Design and Test Engineers to review test results and escalate issues or anomalies\n\n - Support the repair, development, maintenance, and calibration of test fixtures and related equipment\n\n - Record and report test data accurately, participating in post-test reviews and process improvements\n\n - Occasionally assist with prototype or experimental testing\n\nRequired Skills:\n\n - 3–5 years of experience in electronics or manufacturing test environments\n\n - Familiarity with electrical systems and high-voltage safety practices\n\n - Proven ability to execute detailed test procedures safely and efficiently\n\n - Hands-on experience in test setup, troubleshooting, and use of electrical measurement tools\n\n#LI-Onsite \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"3901a045-7e58-47b9-9ba8-3049485490de","title":"Technical Program Manager, IS&T","department":"Information Security & Technology ","team":"Information Security & Technology ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-08T14:57:23.731+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3901a045-7e58-47b9-9ba8-3049485490de","applyUrl":"https://jobs.ashbyhq.com/helion/3901a045-7e58-47b9-9ba8-3049485490de/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Our Technical Program Manager, IS&T will provide enterprise-level technical program management for Information Security & Technology (IS&T). You will collaborate with all business teams (including Manufacturing, Engineering, People Operations, Science, and others) to ensure the successful completion of technical projects to be delivered by IS&T. You will be responsible for building and maturing program governance frameworks, strengthening IS&T operations, and driving continuous improvement to enhance reliability, and improve organizational efficiency. This is an onsite role that reports directly to the Director of IS&T at our Everett, WA office.
Lead IS&T program and portfolio execution, ensuring alignment with business priorities across engineering, manufacturing, science, and people operations
Build and mature TPM governance frameworks, including standards, roadmaps, delivery methodologies, and decision rituals
Translate complex requirements into actionable roadmaps and measurable outcomes
Drive planning and execution across digital platforms, infrastructure, and cloud modernization to enhance data integrity, analytics, and operational efficiency.
Oversee budgets, resources, vendor evaluations, and compliance considerations to balance transparency, scalability, and cost control
Improve IT operations and service delivery by implementing incident response, change control, release management, and readiness practices
Develop and maintain KPIs, dashboards, and performance metrics to support data-driven execution and leadership insight
Champion continuous improvement and organizational change management, including post-implementation reviews and process maturity evolution
Mentor and coach cross-functional teams (project managers, engineers, analysts, Scrum Masters) to strengthen collaboration and delivery consistency
Required Skills:
8+ years of program management experience
Governance, PMO Development, Multi-Program Execution, Budget Oversight
Incident Response, Root Cause Analysis, Process Optimization, Continuity Planning
Oracle MES, Salesforce, ServiceNow, Cloud Transformation (AWS / Azure / Google Cloud), JIRA, Confluence
Change Control, Compliance (ISO 21434, GDPR, NIST), Audit Readiness
Agile, Scrum, SAFe, SDLC, Waterfall, Kanban
Stakeholder Engagement, Executive Communication, Cross-Functional Enablement
#LI-Onsite
#LI-IB1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nOur Technical Program Manager, IS&T will provide enterprise-level technical program management for Information Security & Technology (IS&T). You will collaborate with all business teams (including Manufacturing, Engineering, People Operations, Science, and others) to ensure the successful completion of technical projects to be delivered by IS&T. You will be responsible for building and maturing program governance frameworks, strengthening IS&T operations, and driving continuous improvement to enhance reliability, and improve organizational efficiency. This is an onsite role that reports directly to the Director of IS&T at our Everett, WA office.\n\n - Lead IS&T program and portfolio execution, ensuring alignment with business priorities across engineering, manufacturing, science, and people operations \n\n - Build and mature TPM governance frameworks, including standards, roadmaps, delivery methodologies, and decision rituals \n\n - Translate complex requirements into actionable roadmaps and measurable outcomes \n\n - Drive planning and execution across digital platforms, infrastructure, and cloud modernization to enhance data integrity, analytics, and operational efficiency. \n\n - Oversee budgets, resources, vendor evaluations, and compliance considerations to balance transparency, scalability, and cost control \n\n - Improve IT operations and service delivery by implementing incident response, change control, release management, and readiness practices \n\n - Develop and maintain KPIs, dashboards, and performance metrics to support data-driven execution and leadership insight \n\n - Champion continuous improvement and organizational change management, including post-implementation reviews and process maturity evolution \n\n - Mentor and coach cross-functional teams (project managers, engineers, analysts, Scrum Masters) to strengthen collaboration and delivery consistency \n\nRequired Skills: \n\n - 8+ years of program management experience \n\n - Governance, PMO Development, Multi-Program Execution, Budget Oversight \n\n - Incident Response, Root Cause Analysis, Process Optimization, Continuity Planning \n\n - Oracle MES, Salesforce, ServiceNow, Cloud Transformation (AWS / Azure / Google Cloud), JIRA, Confluence \n\n - Change Control, Compliance (ISO 21434, GDPR, NIST), Audit Readiness \n\n - Agile, Scrum, SAFe, SDLC, Waterfall, Kanban \n\n - Stakeholder Engagement, Executive Communication, Cross-Functional Enablement \n\n#LI-Onsite\n\n#LI-IB1\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"d9e0e2c2-5fda-44e2-b8f6-693590dd7702","title":"Process Design Lead, Fuel Cycle","department":"Fuel Cycle","team":"Fuel Cycle","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-11-20T21:49:09.333+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/d9e0e2c2-5fda-44e2-b8f6-693590dd7702","applyUrl":"https://jobs.ashbyhq.com/helion/d9e0e2c2-5fda-44e2-b8f6-693590dd7702/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As Helion’s Process Design Lead, you will guide a multidisciplinary team of engineers responsible for architecting, designing, and delivering the fuel cycle systems that will enable Orion, Helion’s next-generation fusion power plant. You will set the technical direction for core technologies in the fuel cycle involving a variety of separation, vacuum, and cryogenic processes, ensuring they integrate seamlessly into Orion and future fusion platforms. In this role, you will also accelerate Helion’s risk-reduction efforts by identifying and leading projects to address critical technology risks and evaluate emerging fuel cycle approaches. Your leadership will influence the strategy, execution, and growth of Helion’s fuel cycle capabilities as we scale toward commercial fusion. This is an onsite role that reports directly to the Fuel Cycle Manager at our Everett, WA office.
You Will:
Lead, develop, and empower a multidisciplinary team of engineers owning the architecture, design, procurement, installation, and validation of Orion’s fuel cycle systems
Drive design risk reduction by partnering with the Fuel Cycle Operations and R&D teams to test and validate design assumptions on in-house pilot scale systems and Polaris, enabling confident system delivery
Collaborate cross-functionally with Special Projects, Mechanical, Electrical, Controls, and broader engineering teams to define interface requirements, deliver fully integrated system designs, and delegate work appropriately
Set the standard for design excellence by developing and reinforcing robust processes for fuel cycle system design reviews, bills of design, risk analyses, and mitigations, and management of change
Translate strategic goals into actionable objectives, managing month-to-month planning, schedules, and priorities to ensure reliable and on-time delivery of high-impact projects
Mentor and grow engineering talent, fostering technical depth, accountability, and career development
Required Skills:
Bachelor’s degree in Engineering or related field
5+ years of engineering experience, including 2+ years in an engineering leadership role
Experience designing, delivering, and integrating pilot- or commercial-scale process systems
Experience managing a multidisciplinary engineering team in a fast-paced environment
Experience balancing design work, validation testing, and development projects in parallel
Strong record of mentorship with demonstrated ability to coach and develop engineers
Hands-on familiarity with chemical, mechanical, thermal and/or fluid systems engineering
Comfort operating in a startup environment with change, ambiguity, and rapid execution
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nAs Helion’s Process Design Lead, you will guide a multidisciplinary team of engineers responsible for architecting, designing, and delivering the fuel cycle systems that will enable Orion, Helion’s next-generation fusion power plant. You will set the technical direction for core technologies in the fuel cycle involving a variety of separation, vacuum, and cryogenic processes, ensuring they integrate seamlessly into Orion and future fusion platforms. In this role, you will also accelerate Helion’s risk-reduction efforts by identifying and leading projects to address critical technology risks and evaluate emerging fuel cycle approaches. Your leadership will influence the strategy, execution, and growth of Helion’s fuel cycle capabilities as we scale toward commercial fusion. This is an onsite role that reports directly to the Fuel Cycle Manager at our Everett, WA office. \n\nYou Will: \n\n - Lead, develop, and empower a multidisciplinary team of engineers owning the architecture, design, procurement, installation, and validation of Orion’s fuel cycle systems \n\n - Drive design risk reduction by partnering with the Fuel Cycle Operations and R&D teams to test and validate design assumptions on in-house pilot scale systems and Polaris, enabling confident system delivery\n\n - Collaborate cross-functionally with Special Projects, Mechanical, Electrical, Controls, and broader engineering teams to define interface requirements, deliver fully integrated system designs, and delegate work appropriately\n\n - Set the standard for design excellence by developing and reinforcing robust processes for fuel cycle system design reviews, bills of design, risk analyses, and mitigations, and management of change\n\n - Translate strategic goals into actionable objectives, managing month-to-month planning, schedules, and priorities to ensure reliable and on-time delivery of high-impact projects\n\n - Mentor and grow engineering talent, fostering technical depth, accountability, and career development \n\nRequired Skills: \n\n - Bachelor’s degree in Engineering or related field \n\n - 5+ years of engineering experience, including 2+ years in an engineering leadership role \n\n - Experience designing, delivering, and integrating pilot- or commercial-scale process systems \n\n - Experience managing a multidisciplinary engineering team in a fast-paced environment \n\n - Experience balancing design work, validation testing, and development projects in parallel \n\n - Strong record of mentorship with demonstrated ability to coach and develop engineers \n\n - Hands-on familiarity with chemical, mechanical, thermal and/or fluid systems engineering \n\n - Comfort operating in a startup environment with change, ambiguity, and rapid execution \n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"dbf521f9-711d-42b7-9060-57c1c755fdaa","title":"Technical Program Manager - HERCULES","department":"Nuclear","team":"Nuclear","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-10-23T20:36:41.235+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/dbf521f9-711d-42b7-9060-57c1c755fdaa","applyUrl":"https://jobs.ashbyhq.com/helion/dbf521f9-711d-42b7-9060-57c1c755fdaa/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
You will be the Technical Project Manager for projects on the Nuclear Science team, including HERCULES – the Helion External Research Collaboration for Universities, Labs, and Enterprise Scientists. Through HERCULES, Helion will fund impactful research at universities, national labs, and research companies, totaling over $20M over three years in a phased approach. As administrator for this program, you will review proposals, work with Helion's business teams and the awardee to go from proposal to funded project, then guide the technical work in partnership with internal PIs through the lifecycle of the project. Your superpower will be technical breadth, ensuring scientific alignment with Helion's objectives. This is an onsite role that reports directly to Director of Nuclear Science at our Everett, WA office.
You Will
Lead the HERCULES program, totaling over $20M over three years
Work on the cutting edge of research, contributing to the breadth of Helion's science and R&D spanning nuclear, materials, fuel, and pulsed power science. You will partner with internal PIs across all of Helion's technical teams
Evaluate proposal submissions, quickly navigate contracts, disperse funds to research partners, guide technical work, and ensure on-track deliverables
Communicate externally to potential partners to advertise the program, and internally to leaders and executives on progress and impact. You will be the bridge between Helion leadership, PIs, and business units, and those of our partners
Teach our partners how to move fast and accelerate. You will find their largest blockers – supply chain, legal, and technical and solve them
Jump in and ensure the delivery of internal Nuclear Science projects in parallel to external projects
Required Skills
Research Experience: you have a PhD in science or engineering, or equivalent experience delivering impactful research through the scientific lifecycle in an academic or national lab setting
Technical breadth: as the leader of this program, you have the technical skillset to understand projects spanning nuclear science, materials science, chemical engineering, experimental and computational plasma physics, and electrical engineering (pulsed power). This will be demonstrated by the delivery of multidisciplinary projects and/or publications spanning multiple discipline
Communication: you can talk to scientists and business executives. You can condense information into short memos, understand key information from technical reports, and communicate business value to leaders and executives. For any project, you can always explain the “why” and how it connects to the organization's mission. This will be demonstrated via presentations at program review meetings and/or program review reports
Project Management: you have experience managing multi-year budgets totaling over $1M, regularly reporting progress to stakeholders, driving schedule, and accelerating projects. You have managed multiple projects, keeping an eye on both the big picture and the details
Proven delivery: you have brought a product from technological readiness level (TRL) 3 to TRL 6 on an accelerated timeline
#LI-TM1 #LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing\n\nYou will be the Technical Project Manager for projects on the Nuclear Science team, including HERCULES – the Helion External Research Collaboration for Universities, Labs, and Enterprise Scientists. Through HERCULES, Helion will fund impactful research at universities, national labs, and research companies, totaling over $20M over three years in a phased approach. As administrator for this program, you will review proposals, work with Helion's business teams and the awardee to go from proposal to funded project, then guide the technical work in partnership with internal PIs through the lifecycle of the project. Your superpower will be technical breadth, ensuring scientific alignment with Helion's objectives. This is an onsite role that reports directly to Director of Nuclear Science at our Everett, WA office.\n\nYou Will\n\n - Lead the HERCULES program, totaling over $20M over three years\n\n - Work on the cutting edge of research, contributing to the breadth of Helion's science and R&D spanning nuclear, materials, fuel, and pulsed power science. You will partner with internal PIs across all of Helion's technical teams\n\n - Evaluate proposal submissions, quickly navigate contracts, disperse funds to research partners, guide technical work, and ensure on-track deliverables\n\n - Communicate externally to potential partners to advertise the program, and internally to leaders and executives on progress and impact. You will be the bridge between Helion leadership, PIs, and business units, and those of our partners\n\n - Teach our partners how to move fast and accelerate. You will find their largest blockers – supply chain, legal, and technical and solve them\n\n - Jump in and ensure the delivery of internal Nuclear Science projects in parallel to external projects\n\nRequired Skills\n\n - Research Experience: you have a PhD in science or engineering, or equivalent experience delivering impactful research through the scientific lifecycle in an academic or national lab setting\n\n - Technical breadth: as the leader of this program, you have the technical skillset to understand projects spanning nuclear science, materials science, chemical engineering, experimental and computational plasma physics, and electrical engineering (pulsed power). This will be demonstrated by the delivery of multidisciplinary projects and/or publications spanning multiple discipline\n\n - Communication: you can talk to scientists and business executives. You can condense information into short memos, understand key information from technical reports, and communicate business value to leaders and executives. For any project, you can always explain the “why” and how it connects to the organization's mission. This will be demonstrated via presentations at program review meetings and/or program review reports\n\n - Project Management: you have experience managing multi-year budgets totaling over $1M, regularly reporting progress to stakeholders, driving schedule, and accelerating projects. You have managed multiple projects, keeping an eye on both the big picture and the details\n\n - Proven delivery: you have brought a product from technological readiness level (TRL) 3 to TRL 6 on an accelerated timeline\n\n#LI-TM1 #LI-Onsite \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"8906b43b-f948-4eb5-b1f6-445532264068","title":"Internal Communications Partner","department":"Communications","team":"Communications","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-09T23:30:44.743+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/8906b43b-f948-4eb5-b1f6-445532264068","applyUrl":"https://jobs.ashbyhq.com/helion/8906b43b-f948-4eb5-b1f6-445532264068/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As an Internal Communications Partner at Helion, you will own key storytelling and communication mechanisms that keep our growing teams aligned and engaged. You will partner with teams across Helion to deliver communications that connect company priorities to team outcomes, guide leaders on how to frame change effectively, and ensure employees have the context they need to do their best work.
This role requires sound judgment, resourcefulness, and the ability to balance strategic guidance with excellent hands-on execution. Every day will look different, but your north star will be clarity and connection for our team of builders. This is an onsite role that reports directly to the Senior Manager of Internal Communications at our Everett, WA office.
You Will:
Serve as a trusted communications advisor to senior leaders and cross-functional partners, helping shape message strategy, audience approach, channel selection, and timing for key updates.
Own and continuously improve recurring internal communication channels, including weekly newsletter, team presentations, digital signage, leader announcements, and other touchpoints that help employees stay informed and connected.
Lead change communication strategies for critical business initiatives, using employee feedback, channel performance and organizational context to make recommendations that help employees navigate change with clarity and confidence.
Own and manage Helion’s intranet and knowledge base, collaborating with documentation owners and SMEs to maintain a reliable single source of truth for company information.
Partner with IS&T, People Ops, and business leaders to evolve audience segmentation, communication governance, and channel distribution strategies so the right information reaches the right employees at the right time.
Required Skills:
8+ years of experience in internal communications or employee engagement—ideally supporting high-growth organizations with distributed, deskless, or shift-based employee populations.
Track record of strong partnerships across all levels of an organization—from senior leaders to individual subject matter experts—to deliver communications plans that drive team alignment and engagement
Exceptional writing and editing skills, with the ability to tailor messages across multiple formats, audiences, and channels, including email, Slack, Confluence, presentations, and digital signage.
Demonstrated success leading communication efforts during change, bringing structure and clarity to evolving processes, operational updates, and organizational shifts.
Highly organized and detail oriented, with a track record of driving projects forward, managing multiple stakeholders, and owning deliverables from concept through final execution.
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs an Internal Communications Partner at Helion, you will own key storytelling and communication mechanisms that keep our growing teams aligned and engaged. You will partner with teams across Helion to deliver communications that connect company priorities to team outcomes, guide leaders on how to frame change effectively, and ensure employees have the context they need to do their best work.\n\nThis role requires sound judgment, resourcefulness, and the ability to balance strategic guidance with excellent hands-on execution. Every day will look different, but your north star will be clarity and connection for our team of builders. This is an onsite role that reports directly to the Senior Manager of Internal Communications at our Everett, WA office.\n\nYou Will:\n\n - Serve as a trusted communications advisor to senior leaders and cross-functional partners, helping shape message strategy, audience approach, channel selection, and timing for key updates.\n\n - Own and continuously improve recurring internal communication channels, including weekly newsletter, team presentations, digital signage, leader announcements, and other touchpoints that help employees stay informed and connected. \n\n - Lead change communication strategies for critical business initiatives, using employee feedback, channel performance and organizational context to make recommendations that help employees navigate change with clarity and confidence.\n\n - Own and manage Helion’s intranet and knowledge base, collaborating with documentation owners and SMEs to maintain a reliable single source of truth for company information.\n\n - Partner with IS&T, People Ops, and business leaders to evolve audience segmentation, communication governance, and channel distribution strategies so the right information reaches the right employees at the right time.\n\nRequired Skills:\n\n - 8+ years of experience in internal communications or employee engagement—ideally supporting high-growth organizations with distributed, deskless, or shift-based employee populations.\n\n - Track record of strong partnerships across all levels of an organization—from senior leaders to individual subject matter experts—to deliver communications plans that drive team alignment and engagement\n\n - Exceptional writing and editing skills, with the ability to tailor messages across multiple formats, audiences, and channels, including email, Slack, Confluence, presentations, and digital signage. \n\n - Demonstrated success leading communication efforts during change, bringing structure and clarity to evolving processes, operational updates, and organizational shifts.\n\n - Highly organized and detail oriented, with a track record of driving projects forward, managing multiple stakeholders, and owning deliverables from concept through final execution.\n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"48b798be-5137-4d66-9b1b-473c9c92c0a7","title":"Electrical Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-26T19:33:52.573+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/48b798be-5137-4d66-9b1b-473c9c92c0a7","applyUrl":"https://jobs.ashbyhq.com/helion/48b798be-5137-4d66-9b1b-473c9c92c0a7/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments.
We look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You’ll focus on the areas where your strengths drive the most impact today, while gaining hands-on opportunities to grow into expanded scopes and solve system-level challenges.
Focus Areas:
High Voltage/Pulsed Power Systems
Design, test, troubleshoot, support, and scale high-voltage systems for driving pulsed magnetic coils (1<ms) at currents up to 5MA and voltage up to 40kV
Evaluate and apply solid-state switching devices (IGBTs, MOSFETs, SCRs/thyristors) with attention to losses, protection, di/dt, dv/dt, and thermal performance
Specify and integrate high energy components (capacitors, switches, pulse forming networks, buswork, protection, grounding)
Power Electronics
Design, test, scale, and integrate DC/DC, AC/DC, DC/AC converters used for energy delivery, energy recovery, and distribution ranging from hundreds of volts to thousands of volts
Develop switching-stage designs including half/full bridges, phase-shifted/full-bridge, LLC/series-resonant, or buck/boost-derived converters (topology selection based on efficiency, controllability, and fault behavior)
Low Voltage Control and Diagnostics
Design low voltage control electronics and PCBAs that interface with high energy systems
Own schematic capture and support layout, help scale PCBA deliveries to tens of thousands of boards
Build analog front ends for current/voltage/field/temp and other diagnostics: amplification, filtering, isolation, ADC interfacing
Ensure measurement integrity in high EMI environments (noise mitigation, grounding, shielding, calibration strategies)
Partner with firmware/software teams on acquisition requirements and data quality
Required Skills:
2+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s level degree in Electrical Engineering, Physics, or a related technical field
Demonstrated strength in at least one of the focus areas above
Hands-on troubleshooting ability with standard lab equipment (oscilloscope, DMM, power supplies, loads, function/pulse generators, etc)
Comfortable working in high-energy or electrically noisy environments with strong safety mindset and disciplined documentation
Experience with Microsoft Suite, LTSpice, SIMetrix/SIMPLIS, Simulink, Python, and/or MATLAB
#LI-Onsite
#LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\nYou will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments.\n\nWe look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You’ll focus on the areas where your strengths drive the most impact today, while gaining hands-on opportunities to grow into expanded scopes and solve system-level challenges.\n\nFocus Areas:\n\n 1. High Voltage/Pulsed Power Systems\n \n - Design, test, troubleshoot, support, and scale high-voltage systems for driving pulsed magnetic coils (1We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As an Electrical Systems Engineer, you will help define the electrical hardware that powers and controls our next-generation fusion machines. You will work at the architecture level to ensure electrical subsystems, including power distribution, controls interfaces, sensors, and communication networks, function together as a coherent and reliable platform. In this role, you will contribute to architectural decisions, define requirements and interfaces, and support verification and hardware bring-up. You will work closely with engineering, test, and commissioning teams to translate technical objectives into implementable designs and ensure those designs perform as intended during testing and deployment. This role blends architecture development, requirements ownership, and hands-on hardware work, and is well suited for engineers who enjoy working across disciplines while remaining closely connected to the physical system.
You Will:
Contribute to the architecture and design of electrical subsystems, ensuring alignment with overall machine requirements and operational goals.
Define, maintain, and manage system and subsystem requirements, ensuring clear traceability from top-level objectives to implemented hardware.
Develop and maintain Interface Control Documents (ICDs) that define electrical, controls, and mechanical interfaces between subsystems and suppliers.
Support verification planning and execution, ensuring requirements have clear verification methods and participating in testing activities.
Work hands-on during hardware bring-up and prototyping, helping diagnose and resolve issues across electrical hardware, controls systems, and subsystem interfaces.
Collaborate closely with electrical, controls, mechanical, and test teams to ensure designs function correctly within the overall machine.
Support integration of new hardware and subsystems during development and commissioning.
Contribute to system documentation and engineering processes, including requirements management, design reviews, and integration planning.
Required Skills:
Bachelor’s or Master’s degree in Electrical Engineering or a related field.
3+ years of experience in electrical systems engineering, integration, test, or hardware development.
Experience contributing to system or subsystem architecture, including defining electrical subsystems and their interactions.
Experience developing and managing technical requirements and Interface Control Documents (ICDs).
Ability to read and interpret electrical schematics, wiring diagrams, and interconnect documentation.
Hands-on experience with hardware bring-up, troubleshooting, and root cause analysis using standard lab instrumentation such as oscilloscopes, DMMs, and logic or spectrum analyzers.
Experience working with cross-disciplinary engineering teams including electrical, controls, mechanical, and test.
Strong technical documentation and communication skills, including the ability to clearly capture requirements, interfaces, and design decisions.
Experience working with hardware suppliers or external partners to define technical requirements and review deliverables.
Desired Skills:
Experience in aerospace, automotive, robotics, energy systems, or other safety-critical, high-reliability industries.
Familiarity with large-scale electrical hardware systems, including power distribution, sensing, and controls integration.
Knowledge of high-voltage or high-current electrical systems, including grounding, protection, and EMI/EMC considerations.
Experience with requirements management and PLM tools such as Flow, Jama, DOORS, Teamcenter, or Confluence.
Exposure to system safety and reliability methods, including FMEA, FMECA, or fault analysis.
Experience supporting or executing system-level integration testing, including instrumentation, automation, and data analysis.
Familiarity with electrical interconnect systems and harness manufacturing standards such as IPC/WHMA-A-620 or related industry practices.
Comfort operating in fast-paced development environments where both engineering rigor and development speed are required.
Demonstrated ownership of hardware development efforts from concept through deployment, including coordination with suppliers and cross-disciplinary teams.
#LI-Onsite
#LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\nAs an Electrical Systems Engineer, you will help define the electrical hardware that powers and controls our next-generation fusion machines. You will work at the architecture level to ensure electrical subsystems, including power distribution, controls interfaces, sensors, and communication networks, function together as a coherent and reliable platform. In this role, you will contribute to architectural decisions, define requirements and interfaces, and support verification and hardware bring-up. You will work closely with engineering, test, and commissioning teams to translate technical objectives into implementable designs and ensure those designs perform as intended during testing and deployment. This role blends architecture development, requirements ownership, and hands-on hardware work, and is well suited for engineers who enjoy working across disciplines while remaining closely connected to the physical system.\n\nYou Will:\n\n - Contribute to the architecture and design of electrical subsystems, ensuring alignment with overall machine requirements and operational goals.\n\n - Define, maintain, and manage system and subsystem requirements, ensuring clear traceability from top-level objectives to implemented hardware.\n\n - Develop and maintain Interface Control Documents (ICDs) that define electrical, controls, and mechanical interfaces between subsystems and suppliers.\n\n - Support verification planning and execution, ensuring requirements have clear verification methods and participating in testing activities.\n\n - Work hands-on during hardware bring-up and prototyping, helping diagnose and resolve issues across electrical hardware, controls systems, and subsystem interfaces.\n\n - Collaborate closely with electrical, controls, mechanical, and test teams to ensure designs function correctly within the overall machine.\n\n - Support integration of new hardware and subsystems during development and commissioning.\n\n - Contribute to system documentation and engineering processes, including requirements management, design reviews, and integration planning.\n\nRequired Skills:\n\n - Bachelor’s or Master’s degree in Electrical Engineering or a related field.\n\n - 3+ years of experience in electrical systems engineering, integration, test, or hardware development.\n\n - Experience contributing to system or subsystem architecture, including defining electrical subsystems and their interactions.\n\n - Experience developing and managing technical requirements and Interface Control Documents (ICDs).\n\n - Ability to read and interpret electrical schematics, wiring diagrams, and interconnect documentation.\n\n - Hands-on experience with hardware bring-up, troubleshooting, and root cause analysis using standard lab instrumentation such as oscilloscopes, DMMs, and logic or spectrum analyzers.\n\n - Experience working with cross-disciplinary engineering teams including electrical, controls, mechanical, and test.\n\n - Strong technical documentation and communication skills, including the ability to clearly capture requirements, interfaces, and design decisions.\n\n - Experience working with hardware suppliers or external partners to define technical requirements and review deliverables.\n\n\n\nDesired Skills:\n\n - Experience in aerospace, automotive, robotics, energy systems, or other safety-critical, high-reliability industries.\n\n - Familiarity with large-scale electrical hardware systems, including power distribution, sensing, and controls integration.\n\n - Knowledge of high-voltage or high-current electrical systems, including grounding, protection, and EMI/EMC considerations.\n\n - Experience with requirements management and PLM tools such as Flow, Jama, DOORS, Teamcenter, or Confluence.\n\n - Exposure to system safety and reliability methods, including FMEA, FMECA, or fault analysis.\n\n - Experience supporting or executing system-level integration testing, including instrumentation, automation, and data analysis.\n\n - Familiarity with electrical interconnect systems and harness manufacturing standards such as IPC/WHMA-A-620 or related industry practices.\n\n - Comfort operating in fast-paced development environments where both engineering rigor and development speed are required.\n\n - Demonstrated ownership of hardware development efforts from concept through deployment, including coordination with suppliers and cross-disciplinary teams.\n\n#LI-Onsite\n\n#LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a550a051-379d-41ec-b3b8-8e13786ac3e5","title":"Manager, Supplier Development Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:25:40.667+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a550a051-379d-41ec-b3b8-8e13786ac3e5","applyUrl":"https://jobs.ashbyhq.com/helion/a550a051-379d-41ec-b3b8-8e13786ac3e5/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As the Manager of Supplier Development Engineering, you will lead the strategy, execution, and continuous improvement of Helion’s supplier readiness, supplier quality, and supplier technical capability as we scale from prototype builds to high-volume manufacturing for fusion generator production. You will manage a team of Supplier Development Engineers and partner closely with design engineering, manufacturing, supply chain, and operations to ensure suppliers can meet Helion’s technical, quality, cost, and delivery requirements. You will drive supplier performance, develop long-term manufacturing capability, and build a resilient, high-quality supply chain that accelerates Helion's mission of delivering clean fusion electricity. This role is onsite at our headquarters in Everett, WA.
You Will:
Manage, coach, and grow a high-performing team of Supplier Development Engineers while setting priorities, resource plans, and execution frameworks to support major program milestones
Develop and implement Helion’s supplier development strategy to strengthen supplier technical capability and readiness
Collaborate with engineering teams to understand part and subsystem requirements and translate them into supplier manufacturing and quality expectations
Lead supplier selection, capability assessments, and sourcing decisions in partnership with supply chain teams
Evaluate supplier manufacturing processes, quality systems, capacity, and scalability against Helion’s requirements
Oversee deployment of PPAP, APQP, FAI, control plans, and other qualification processes across critical suppliers
Drive systematic root cause investigations, corrective actions, and continuous improvement for supplier nonconformances
Use data, metrics, and supplier performance dashboards to guide improvements and long-term strategic decisions
Guide suppliers through prototype builds, engineering validation, pilot production, and scaling to high-volume output
Ensure supplier documentation, inspection plans, and verification methods meet Helion’s engineering and regulatory standards
Partner with manufacturing engineering to introduce high-volume production methods and refine manufacturability
Develop long-term supplier capability plans that reduce risk, accelerate production timelines, and incorporate emerging manufacturing technologies
Required Skills:
Bachelor's degree in Engineering, Material Science or a related field
7+ years of experience in supplier development, supplier quality, or manufacturing engineering, including direct experience working with and developing suppliers
3+ years of experience leading engineering teams or technical programs
Strong background in mechanical and electrical manufacturing processes (such as machining, electromechanical assembly, PCBA fabrication, Silicon device manufacturing, and high-precision component manufacturing)
Deep knowledge of supplier quality methodologies (PPAP, APQP, FAI, control plans, SPC, DOE, Six Sigma)
Experience working within quality systems such as ISO 9001, AS9100, or IATF 16949
Assess ability to assess supplier capability, identify manufacturing risks, and lead effective corrective action
Ability to travel up to 25% to support supplier audits, development, and ongoing supplier performance
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nAs the Manager of Supplier Development Engineering, you will lead the strategy, execution, and continuous improvement of Helion’s supplier readiness, supplier quality, and supplier technical capability as we scale from prototype builds to high-volume manufacturing for fusion generator production. You will manage a team of Supplier Development Engineers and partner closely with design engineering, manufacturing, supply chain, and operations to ensure suppliers can meet Helion’s technical, quality, cost, and delivery requirements. You will drive supplier performance, develop long-term manufacturing capability, and build a resilient, high-quality supply chain that accelerates Helion's mission of delivering clean fusion electricity. This role is onsite at our headquarters in Everett, WA.\n\nYou Will: \n\n - Manage, coach, and grow a high-performing team of Supplier Development Engineers while setting priorities, resource plans, and execution frameworks to support major program milestones \n\n - Develop and implement Helion’s supplier development strategy to strengthen supplier technical capability and readiness \n\n - Collaborate with engineering teams to understand part and subsystem requirements and translate them into supplier manufacturing and quality expectations \n\n - Lead supplier selection, capability assessments, and sourcing decisions in partnership with supply chain teams \n\n - Evaluate supplier manufacturing processes, quality systems, capacity, and scalability against Helion’s requirements \n\n - Oversee deployment of PPAP, APQP, FAI, control plans, and other qualification processes across critical suppliers \n\n - Drive systematic root cause investigations, corrective actions, and continuous improvement for supplier nonconformances \n\n - Use data, metrics, and supplier performance dashboards to guide improvements and long-term strategic decisions \n\n - Guide suppliers through prototype builds, engineering validation, pilot production, and scaling to high-volume output \n\n - Ensure supplier documentation, inspection plans, and verification methods meet Helion’s engineering and regulatory standards \n\n - Partner with manufacturing engineering to introduce high-volume production methods and refine manufacturability \n\n - Develop long-term supplier capability plans that reduce risk, accelerate production timelines, and incorporate emerging manufacturing technologies \n\nRequired Skills: \n\n - Bachelor's degree in Engineering, Material Science or a related field\n\n - 7+ years of experience in supplier development, supplier quality, or manufacturing engineering, including direct experience working with and developing suppliers \n\n - 3+ years of experience leading engineering teams or technical programs \n\n - Strong background in mechanical and electrical manufacturing processes (such as machining, electromechanical assembly, PCBA fabrication, Silicon device manufacturing, and high-precision component manufacturing)\n\n - Deep knowledge of supplier quality methodologies (PPAP, APQP, FAI, control plans, SPC, DOE, Six Sigma) \n\n - Experience working within quality systems such as ISO 9001, AS9100, or IATF 16949 \n\n - Assess ability to assess supplier capability, identify manufacturing risks, and lead effective corrective action \n\n - Ability to travel up to 25% to support supplier audits, development, and ongoing supplier performance \n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"056d0a90-61c6-403b-91d6-1c605f02014b","title":"Mechanical Engineering Manager, Structures","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:30:24.304+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/056d0a90-61c6-403b-91d6-1c605f02014b","applyUrl":"https://jobs.ashbyhq.com/helion/056d0a90-61c6-403b-91d6-1c605f02014b/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices. Your role will focus on solving complex, high-impact problems that influence system performance, while also growing a high-performing engineering team. You will establish technical standards, drive execution, and shape design processes to increase the speed and quality of innovation. This role is onsite at our headquarters in Everett, WA.
You Will:
Grow and mentor a team of multidisciplinary structural and mechanical engineers
Oversee design of machine architecture, high-performance structural systems, shielding, and piece part + assembly design
Drive high-level architectural decisions on neutron shielding, primary structures, racking, and plant design schemes
Lead design, analysis, and manufacturing process improvements to increase throughput
Collaborate with Research, Science, Electrical, and Controls teams to derive requirements and meet program goals
Required Skills:
Bachelor's degree in Engineering
5+ years of structural/mechanical engineering experience, including 2+ years in an engineering management role
Demonstrated ability to hire and grow engineers providing impactful career development
Experience leading multidisciplinary teams with full-scope project ownership
Proven ability to manage complex engineering projects with schedule accountability
Hands-on exposure to multiple engineering disciplines such as mechanical, thermal, and large structures
Ability to apply engineering first-principles and structured problem-solving to technical challenges
#LI-Onsite, #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices. Your role will focus on solving complex, high-impact problems that influence system performance, while also growing a high-performing engineering team. You will establish technical standards, drive execution, and shape design processes to increase the speed and quality of innovation. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Grow and mentor a team of multidisciplinary structural and mechanical engineers\n\n - Oversee design of machine architecture, high-performance structural systems, shielding, and piece part + assembly design \n\n - Drive high-level architectural decisions on neutron shielding, primary structures, racking, and plant design schemes\n\n - Lead design, analysis, and manufacturing process improvements to increase throughput\n\n - Collaborate with Research, Science, Electrical, and Controls teams to derive requirements and meet program goals\n\nRequired Skills:\n\n - Bachelor's degree in Engineering\n\n - 5+ years of structural/mechanical engineering experience, including 2+ years in an engineering management role\n\n - Demonstrated ability to hire and grow engineers providing impactful career development\n\n - Experience leading multidisciplinary teams with full-scope project ownership\n\n - Proven ability to manage complex engineering projects with schedule accountability\n\n - Hands-on exposure to multiple engineering disciplines such as mechanical, thermal, and large structures\n\n - Ability to apply engineering first-principles and structured problem-solving to technical challenges\n\n#LI-Onsite, #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"24e6b2d6-d935-43dd-845c-f46847f24a37","title":"Principal Capacitor Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:31:21.530+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/24e6b2d6-d935-43dd-845c-f46847f24a37","applyUrl":"https://jobs.ashbyhq.com/helion/24e6b2d6-d935-43dd-845c-f46847f24a37/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
As a Principal Capacitor Design Engineer at Helion, you will lead the design, development, and scaling of custom high-voltage, pulsed-power capacitors that are core to Helion’s fusion generators. You will own capacitor architecture from first principles through high-volume manufacturing, driving breakthroughs in energy density, reliability, and cost. You will provide deep technical leadership to engineering, manufacturing, and production teams as Helion transitions from prototype builds to the world’s first fusion power plant. You will provide technical leadership, organize work, set priorities, and advance Helion’s mission to deliver clean power in a reliable and cost-effective manner. This role is onsite at our headquarters in Everett, WA.
You Will
Lead the full lifecycle of capacitor development—requirements definition, physics-based modeling, internal design, materials selection, prototyping, testing, and scaling into high-throughput manufacturing
Drive the development of low-inductance, high-reliability pulsed capacitors capable of <1 ms, multi-megampere operation, while optimizing for energy density, manufacturability, cost, and lifetime performance
Define critical material specifications, qualification criteria, manufacturing processes, and high-voltage pulsed-power test methods for Helion’s custom capacitor systems
Provide technical leadership and mentorship to engineers, technicians, and assemblers, guiding architecture decisions, test interpretation, and iterative design improvements
Lead failure analysis, lifetime modeling, thermal analysis, and root-cause investigations to strengthen capacitor reliability and production consistency
Partner closely with pulsed-power electrical engineers to align capacitor design with system-level circuit performance targets
Direct the testing, characterization, and evaluation of internally built and supplier-provided capacitors; analyze data and drive continuous improvement with internal teams and external vendors
Own long-term capacitor technology strategy, identifying opportunities to reduce risk, introduce advanced materials, and integrate emerging capacitor technologies
Required Skills
Bachelor’s or Master’s degree in Engineering or Physics
15+ years of deep experience in pulsed-power capacitor design and manufacturing, including internal construction, low-inductance layout, simulation, materials processing, fabrication, high-voltage testing, and lifetime prediction
Demonstrated expertise in dielectric physics: electrical/thermal aging, breakdown behavior, complex permittivity, frequency and temperature dependence, and high-field effects
Proven ability to lead capacitor design from concept through high-volume production, including scaling throughput and establishing robust manufacturing processes
Hands-on experience with rapid prototyping, iterative testing, and high-energy pulsed-power qualification
Strong capability in failure analysis, thermal modeling, and performance evaluation under extreme electrical and thermal stress
Track record of effective cross-functional collaboration with electrical engineering, manufacturing, supply chain, and production teams
Ability to drive technical decision-making, mentor engineers, and set long-term architecture and process standards
Strong communication skills and ability to translate complex physical and engineering concepts into actionable design directions
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing\n\nAs a Principal Capacitor Design Engineer at Helion, you will lead the design, development, and scaling of custom high-voltage, pulsed-power capacitors that are core to Helion’s fusion generators. You will own capacitor architecture from first principles through high-volume manufacturing, driving breakthroughs in energy density, reliability, and cost. You will provide deep technical leadership to engineering, manufacturing, and production teams as Helion transitions from prototype builds to the world’s first fusion power plant. You will provide technical leadership, organize work, set priorities, and advance Helion’s mission to deliver clean power in a reliable and cost-effective manner. This role is onsite at our headquarters in Everett, WA.\n\nYou Will\n\n - Lead the full lifecycle of capacitor development—requirements definition, physics-based modeling, internal design, materials selection, prototyping, testing, and scaling into high-throughput manufacturing\n\n - Drive the development of low-inductance, high-reliability pulsed capacitors capable of <1 ms, multi-megampere operation, while optimizing for energy density, manufacturability, cost, and lifetime performance\n\n - Define critical material specifications, qualification criteria, manufacturing processes, and high-voltage pulsed-power test methods for Helion’s custom capacitor systems\n\n - Provide technical leadership and mentorship to engineers, technicians, and assemblers, guiding architecture decisions, test interpretation, and iterative design improvements\n\n - Lead failure analysis, lifetime modeling, thermal analysis, and root-cause investigations to strengthen capacitor reliability and production consistency\n\n - Partner closely with pulsed-power electrical engineers to align capacitor design with system-level circuit performance targets\n\n - Direct the testing, characterization, and evaluation of internally built and supplier-provided capacitors; analyze data and drive continuous improvement with internal teams and external vendors\n\n - Own long-term capacitor technology strategy, identifying opportunities to reduce risk, introduce advanced materials, and integrate emerging capacitor technologies\n\nRequired Skills\n\n - Bachelor’s or Master’s degree in Engineering or Physics\n\n - 15+ years of deep experience in pulsed-power capacitor design and manufacturing, including internal construction, low-inductance layout, simulation, materials processing, fabrication, high-voltage testing, and lifetime prediction\n\n - Demonstrated expertise in dielectric physics: electrical/thermal aging, breakdown behavior, complex permittivity, frequency and temperature dependence, and high-field effects\n\n - Proven ability to lead capacitor design from concept through high-volume production, including scaling throughput and establishing robust manufacturing processes\n\n - Hands-on experience with rapid prototyping, iterative testing, and high-energy pulsed-power qualification\n\n - Strong capability in failure analysis, thermal modeling, and performance evaluation under extreme electrical and thermal stress\n\n - Track record of effective cross-functional collaboration with electrical engineering, manufacturing, supply chain, and production teams\n\n - Ability to drive technical decision-making, mentor engineers, and set long-term architecture and process standards\n\n - Strong communication skills and ability to translate complex physical and engineering concepts into actionable design directions\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"443266d6-75c3-4279-ad8a-7473cf05f6c8","title":"Principal Electrical Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:05:41.815+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/443266d6-75c3-4279-ad8a-7473cf05f6c8","applyUrl":"https://jobs.ashbyhq.com/helion/443266d6-75c3-4279-ad8a-7473cf05f6c8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Principal Electrical Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.
You Will:
Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils
Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV
Develop system architectures and collaborate with designers on schematics and installation drawings
Lead design reviews to validate cost-effective, scalable, and reliable solutions
Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds
Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects
Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion
Required Skills:
12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field
Hands-on experience designing, fabricating, installing, and testing electronic systems
Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs
Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones
Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software
Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Principal Electrical Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.\n\nYou Will:\n\n - Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils\n\n - Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV\n\n - Develop system architectures and collaborate with designers on schematics and installation drawings\n\n - Lead design reviews to validate cost-effective, scalable, and reliable solutions\n\n - Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds\n\n - Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects\n\n - Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion\n\nRequired Skills:\n\n - 12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery\n\n - Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field\n\n - Hands-on experience designing, fabricating, installing, and testing electronic systems \n\n - Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs\n\n - Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones\n\n - Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software\n\n - Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"485ea7e2-af46-4b79-a6dc-df859e3eaa9b","title":"Principal Power Electronics Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:05:43.317+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/485ea7e2-af46-4b79-a6dc-df859e3eaa9b","applyUrl":"https://jobs.ashbyhq.com/helion/485ea7e2-af46-4b79-a6dc-df859e3eaa9b/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Principal Power Electronics Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Manager of Electrical Engineering at our Everett, WA office.
You Will:
Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils
Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV
Develop system architectures and collaborate with designers on schematics and installation drawings
Lead design reviews to validate cost-effective, scalable, and reliable solutions
Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds
Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects
Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion
Required Skills:
12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field
Hands-on experience designing, fabricating, installing, and testing electronic systems
Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs
Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones
Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software
Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Principal Power Electronics Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Manager of Electrical Engineering at our Everett, WA office.\n\nYou Will:\n\n - Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils\n\n - Oversee design, procurement, construction, and commissioning of systems delivering <1 ms pulses up to 5 MA and 40 kV\n\n - Develop system architectures and collaborate with designers on schematics and installation drawings\n\n - Lead design reviews to validate cost-effective, scalable, and reliable solutions\n\n - Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds\n\n - Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects\n\n - Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion\n\nRequired Skills:\n\n - 12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery\n\n - Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field\n\n - Hands-on experience designing, fabricating, installing, and testing electronic systems \n\n - Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs\n\n - Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones\n\n - Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software\n\n - Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"520b0d15-04e0-4da0-8d27-9b76e879548a","title":"Senior Electrical Simulation Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:15:16.858+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/520b0d15-04e0-4da0-8d27-9b76e879548a","applyUrl":"https://jobs.ashbyhq.com/helion/520b0d15-04e0-4da0-8d27-9b76e879548a/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Senior Electrical Simulation Engineer focused on simulation, you will develop and validate detailed circuit and system models that guide design decisions and ensure the safe, stable operation of our fusion systems. You will create plant-level models to assess performance, evaluate subsystem interactions, and verify compliance with applicable standards and regulations. You will collaborate with cross-disciplinary teams to model and simulate the pulsed power devices, circuits, and physics that enable fusion machine operation. By combining hands-on lab work with advanced simulation methods, you'll accelerate our ability to represent complex electrical systems with confidence, ensuring the reliability of the fusion machine at scale. This is an onsite role that reports directly to Lead Electrical Engineer at our Everett, WA office.
You Will:
Lead development and validation of electrical simulation models at the circuit and systems levels
Integrate electrical models with mechanical, thermal, and controls simulations to evaluate multidisciplinary interactions and optimize overall system performance
Develop automation scripts to enable repeatable, automated execution of simulation activities
Work with hardware, firmware, and software engineers to support bring-up, integration and root-cause analysis
Evaluate and deploy new simulation tools and processes improve model fidelity, efficiency, and scalability
Mentor and guide junior engineers in simulation techniques, model validation, and best practices
Required Skills:
Bachelor's degree in Electrical Engineering, Electrical Engineering Technology, Computer Engineering, or related field
8+ years of experience creating system-level simulations in environments such as Simulink to capture dynamic behavior, fault response and control interactions
Experience with controls, power electronics, and energy delivery systems
Experience developing and validating circuit-level electrical models using tools such as SPICE, Simetrix/Simplis, PLECS, or PSIM
Experience with leading the design and execution of test campaigns to validate and refine simulation models through experimental measurement
Experience with Python, MATLAB, or similar scripting languages for automation, data analysis, report generation, and workflow integration
Troubleshooting and problem-solving skills with attention to detail in model validation and documentation
Collaborate closely with cross-disciplinary engineering teams
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs a Senior Electrical Simulation Engineer focused on simulation, you will develop and validate detailed circuit and system models that guide design decisions and ensure the safe, stable operation of our fusion systems. You will create plant-level models to assess performance, evaluate subsystem interactions, and verify compliance with applicable standards and regulations. You will collaborate with cross-disciplinary teams to model and simulate the pulsed power devices, circuits, and physics that enable fusion machine operation. By combining hands-on lab work with advanced simulation methods, you'll accelerate our ability to represent complex electrical systems with confidence, ensuring the reliability of the fusion machine at scale. This is an onsite role that reports directly to Lead Electrical Engineer at our Everett, WA office. \n\nYou Will:\n\n - Lead development and validation of electrical simulation models at the circuit and systems levels\n\n - Integrate electrical models with mechanical, thermal, and controls simulations to evaluate multidisciplinary interactions and optimize overall system performance\n\n - Develop automation scripts to enable repeatable, automated execution of simulation activities\n\n - Work with hardware, firmware, and software engineers to support bring-up, integration and root-cause analysis\n\n - Evaluate and deploy new simulation tools and processes improve model fidelity, efficiency, and scalability\n\n - Mentor and guide junior engineers in simulation techniques, model validation, and best practices\n\nRequired Skills:\n\n - Bachelor's degree in Electrical Engineering, Electrical Engineering Technology, Computer Engineering, or related field\n\n - 8+ years of experience creating system-level simulations in environments such as Simulink to capture dynamic behavior, fault response and control interactions\n\n - Experience with controls, power electronics, and energy delivery systems\n\n - Experience developing and validating circuit-level electrical models using tools such as SPICE, Simetrix/Simplis, PLECS, or PSIM\n\n - Experience with leading the design and execution of test campaigns to validate and refine simulation models through experimental measurement\n\n - Experience with Python, MATLAB, or similar scripting languages for automation, data analysis, report generation, and workflow integration\n\n - Troubleshooting and problem-solving skills with attention to detail in model validation and documentation\n\n - Collaborate closely with cross-disciplinary engineering teams\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"b5659fa4-aadc-47d0-9746-f58cf8bc51e2","title":"Senior Electrical Systems Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:16:44.881+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b5659fa4-aadc-47d0-9746-f58cf8bc51e2","applyUrl":"https://jobs.ashbyhq.com/helion/b5659fa4-aadc-47d0-9746-f58cf8bc51e2/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Senior Electrical Systems Engineer, you will define the electrical hardware that powers and controls our next-generation fusion machines. You will work at the architecture level to ensure electrical subsystems, including power distribution, controls interfaces, sensors, and communication networks, function together as a coherent and reliable platform. In this role, you will lead architectural decisions, own requirements and interfaces, and drive verification and hardware bring-up. You will work closely with engineering, test, and commissioning teams to translate technical objectives into implementable designs and ensure those designs perform as intended during testing and deployment. This role blends architecture development, requirements ownership, and hands-on hardware work, and is well suited for engineers who enjoy working across disciplines while remaining closely connected to the physical system.
You Will:
Lead the architecture and design of electrical subsystems, ensuring alignment with overall machine requirements and operational goals.
Define, maintain, and own system and subsystem requirements, ensuring clear traceability from top-level objectives to implemented hardware.
Develop, own, and maintain Interface Control Documents (ICDs) that define electrical, controls, and mechanical interfaces between subsystems and suppliers.
Lead verification planning and execution, ensuring requirements have clear verification methods and driving testing activities.
Operate hands-on during hardware bring-up and prototyping, leading efforts to diagnose and resolve issues across electrical hardware, controls systems, and subsystem interfaces.
Drive collaboration across electrical, controls, mechanical, and test teams to ensure designs function correctly within the overall machine.
Own integration of new hardware and subsystems during development and commissioning.
Drive system documentation and engineering processes, including requirements management, design reviews, and integration planning, and mentor junior engineers in these practices.
Required Skills:
Bachelor’s or Master’s degree in Electrical Engineering or a related field.
8+ years of experience in electrical systems engineering, integration, test, or hardware development.
Proven experience leading system or subsystem architecture, including defining electrical subsystems and their interactions.
Proven experience developing and owning technical requirements and Interface Control Documents (ICDs).
Expert ability to read and interpret electrical schematics, wiring diagrams, and interconnect documentation.
Extensive hands-on experience with hardware bring-up, troubleshooting, and root cause analysis using standard lab instrumentation such as oscilloscopes, DMMs, and logic or spectrum analyzers.
Experience applying system safety and reliability methods, including FMEA, FMECA, or fault analysis.
Demonstrated experience driving work across cross-disciplinary engineering teams including electrical, controls, mechanical, and test.
Strong technical documentation and communication skills, including the ability to clearly capture requirements, interfaces, and design decisions and influence cross-functional teams.
Proven experience working with hardware suppliers or external partners to define technical requirements, review deliverables, and drive outcomes.
Desired Skills:
Experience in aerospace, automotive, robotics, energy systems, or other safety-critical, high-reliability industries.
Expertise with large-scale electrical hardware systems, including power distribution, sensing, and controls integration.
Strong knowledge of high-voltage or high-current electrical systems, including grounding, protection, and EMI/EMC considerations.
Experience using and driving adoption of requirements management and PLM tools such as Flow, Jama, DOORS, Teamcenter, or Confluence.
Experience leading or supporting system-level integration testing, including instrumentation, automation, and data analysis.
Familiarity with and application of electrical interconnect systems and harness manufacturing standards such as IPC/WHMA-A-620 or related industry practices.
Demonstrated ability to operate effectively in fast-paced development environments where both engineering rigor and development speed are required.
Demonstrated ownership and leadership of hardware development efforts from concept through deployment, including coordination with suppliers and cross-disciplinary teams.
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\n\nAs a Senior Electrical Systems Engineer, you will define the electrical hardware that powers and controls our next-generation fusion machines. You will work at the architecture level to ensure electrical subsystems, including power distribution, controls interfaces, sensors, and communication networks, function together as a coherent and reliable platform. In this role, you will lead architectural decisions, own requirements and interfaces, and drive verification and hardware bring-up. You will work closely with engineering, test, and commissioning teams to translate technical objectives into implementable designs and ensure those designs perform as intended during testing and deployment. This role blends architecture development, requirements ownership, and hands-on hardware work, and is well suited for engineers who enjoy working across disciplines while remaining closely connected to the physical system.\n\n\n\nYou Will:\n\n - Lead the architecture and design of electrical subsystems, ensuring alignment with overall machine requirements and operational goals.\n\n - Define, maintain, and own system and subsystem requirements, ensuring clear traceability from top-level objectives to implemented hardware.\n\n - Develop, own, and maintain Interface Control Documents (ICDs) that define electrical, controls, and mechanical interfaces between subsystems and suppliers.\n\n - Lead verification planning and execution, ensuring requirements have clear verification methods and driving testing activities.\n\n - Operate hands-on during hardware bring-up and prototyping, leading efforts to diagnose and resolve issues across electrical hardware, controls systems, and subsystem interfaces.\n\n - Drive collaboration across electrical, controls, mechanical, and test teams to ensure designs function correctly within the overall machine.\n Own integration of new hardware and subsystems during development and commissioning.\n\n - Drive system documentation and engineering processes, including requirements management, design reviews, and integration planning, and mentor junior engineers in these practices.\n \n\nRequired Skills:\n\n - Bachelor’s or Master’s degree in Electrical Engineering or a related field.\n 8+ years of experience in electrical systems engineering, integration, test, or hardware development.\n\n - Proven experience leading system or subsystem architecture, including defining electrical subsystems and their interactions.\n\n - Proven experience developing and owning technical requirements and Interface Control Documents (ICDs).\n\n - Expert ability to read and interpret electrical schematics, wiring diagrams, and interconnect documentation.\n\n - Extensive hands-on experience with hardware bring-up, troubleshooting, and root cause analysis using standard lab instrumentation such as oscilloscopes, DMMs, and logic or spectrum analyzers.\n\n - Experience applying system safety and reliability methods, including FMEA, FMECA, or fault analysis.\n\n - Demonstrated experience driving work across cross-disciplinary engineering teams including electrical, controls, mechanical, and test.\n\n - Strong technical documentation and communication skills, including the ability to clearly capture requirements, interfaces, and design decisions and influence cross-functional teams.\n\n - Proven experience working with hardware suppliers or external partners to define technical requirements, review deliverables, and drive outcomes.\n \n\nDesired Skills:\n\n - Experience in aerospace, automotive, robotics, energy systems, or other safety-critical, high-reliability industries.\n\n - Expertise with large-scale electrical hardware systems, including power distribution, sensing, and controls integration.\n\n - Strong knowledge of high-voltage or high-current electrical systems, including grounding, protection, and EMI/EMC considerations.\n\n - Experience using and driving adoption of requirements management and PLM tools such as Flow, Jama, DOORS, Teamcenter, or Confluence.\n\n - Experience leading or supporting system-level integration testing, including instrumentation, automation, and data analysis.\n\n - Familiarity with and application of electrical interconnect systems and harness manufacturing standards such as IPC/WHMA-A-620 or related industry practices.\n\n - Demonstrated ability to operate effectively in fast-paced development environments where both engineering rigor and development speed are required.\n\n - Demonstrated ownership and leadership of hardware development efforts from concept through deployment, including coordination with suppliers and cross-disciplinary teams.\n\n#LI-Onsite #LI-KL1 \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"4c29decd-568f-45d6-aa8b-4e6334b71f2f","title":"Senior Manager, Electrical Engineering","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:19:03.080+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4c29decd-568f-45d6-aa8b-4e6334b71f2f","applyUrl":"https://jobs.ashbyhq.com/helion/4c29decd-568f-45d6-aa8b-4e6334b71f2f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Senior Manager of Electrical Engineering, you will lead the development of novel circuit designs and hardware systems for Helion’s fusion devices. Your primary responsibility will be to grow and lead a high-performing electrical engineering team by providing mentorship, modeling technical excellence, and driving execution speed. You will solve complex engineering challenges that directly impact machine performance and help deliver clean, low-cost, reliable electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.
You will:
Set the standard for how fast Helion designs and builds electrical systems and ultimately delivers clean, low-cost, and reliable electricity to the world
Create a world-class engineering team and continually raise the bar for speed of execution and technical rigor
Manage the team’s end-to-end ownership of high-energy power circuits (kVDC, kVAC, kA, MJ)
Accelerate Helion’s development of custom grid tie-in hardware and/or implementation of highly efficient off-the-shelf components
Collaborate with cross-functional teams to improve generator performance and reliability
Develop and maintain a roadmap to mass-production, optimizing for scalability and cost
Required skills:
Bachelor’s degree in Engineering or a related discipline
Minimum of 10+ years of engineering experience and 3+ years of engineering management experience
Experience in taking multidisciplinary problems from concept to design, manufacturing, test, and deployment
Autonomous ownership of complex engineering projects (including schedule ownership)
Exceptional leadership of engineers with a wide range of experiences and backgrounds
Hands-on exposure to a variety of electrical disciplines
Ability to apply engineering first-principles and analytical rigor to challenging problems
Success scaling complex systems while reducing design iteration time with a lean team
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\n \n\nAs a Senior Manager of Electrical Engineering, you will lead the development of novel circuit designs and hardware systems for Helion’s fusion devices. Your primary responsibility will be to grow and lead a high-performing electrical engineering team by providing mentorship, modeling technical excellence, and driving execution speed. You will solve complex engineering challenges that directly impact machine performance and help deliver clean, low-cost, reliable electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.\n\n \n\nYou will:\n\n - Set the standard for how fast Helion designs and builds electrical systems and ultimately delivers clean, low-cost, and reliable electricity to the world\n\n - Create a world-class engineering team and continually raise the bar for speed of execution and technical rigor\n\n - Manage the team’s end-to-end ownership of high-energy power circuits (kVDC, kVAC, kA, MJ)\n\n - Accelerate Helion’s development of custom grid tie-in hardware and/or implementation of highly efficient off-the-shelf components\n\n - Collaborate with cross-functional teams to improve generator performance and reliability\n\n - Develop and maintain a roadmap to mass-production, optimizing for scalability and cost\n\nRequired skills:\n\n - Bachelor’s degree in Engineering or a related discipline\n\n - Minimum of 10+ years of engineering experience and 3+ years of engineering management experience\n\n - Experience in taking multidisciplinary problems from concept to design, manufacturing, test, and deployment\n\n - Autonomous ownership of complex engineering projects (including schedule ownership)\n\n - Exceptional leadership of engineers with a wide range of experiences and backgrounds\n\n - Hands-on exposure to a variety of electrical disciplines\n\n - Ability to apply engineering first-principles and analytical rigor to challenging problems\n\n - Success scaling complex systems while reducing design iteration time with a lean team\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"77f67235-ec72-4f14-8230-f99ed38a31de","title":"Senior Mechanical Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:33:19.033+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/77f67235-ec72-4f14-8230-f99ed38a31de","applyUrl":"https://jobs.ashbyhq.com/helion/77f67235-ec72-4f14-8230-f99ed38a31de/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own hardware designs for Helion's fusion generator prototypes. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.
You Will:
Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements
Learn from historical engineering approaches, design novel hardware, and test your solutions
Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)
Perform analysis with tools like ANSYS and hold design reviews to gather feedback and iterate to a fully functioning system
Learn from experts to expand your engineering skillset and domain knowledge
Work hands-on alongside experienced technicians to implement your hardware designs
Troubleshoot hardware issues as they arise on integrated fusion generators
Required Skills:
Bachelor's degree in engineering
8+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)
Advanced experience with CAD software (e.g. NX, Solidworks)
Moderate experience with FEA software (e.g. ANSYS, FEMAP)
Moderate experience with GD&T and generating engineering drawings per ASME Y14.5
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will own hardware designs for Helion's fusion generator prototypes. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements\n\n - Learn from historical engineering approaches, design novel hardware, and test your solutions\n\n - Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)\n\n - Perform analysis with tools like ANSYS and hold design reviews to gather feedback and iterate to a fully functioning system\n\n - Learn from experts to expand your engineering skillset and domain knowledge\n\n - Work hands-on alongside experienced technicians to implement your hardware designs\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 8+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)\n\n - Advanced experience with CAD software (e.g. NX, Solidworks)\n\n - Moderate experience with FEA software (e.g. ANSYS, FEMAP)\n\n - Moderate experience with GD&T and generating engineering drawings per ASME Y14.5\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"915d42ad-2618-4eba-997c-f36cc8991742","title":"Senior Mechanical Engineer, Thermal","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-18T22:36:23.974+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/915d42ad-2618-4eba-997c-f36cc8991742","applyUrl":"https://jobs.ashbyhq.com/helion/915d42ad-2618-4eba-997c-f36cc8991742/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own thermo-mechanical hardware designs for Helion's fusion generator. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.
You Will:
Own and understand designs related to thermal, fluids, and structural subsystems – including establishing and iterating on requirements.
Learn from historical engineering approaches, design novel hardware, and test your solutions
Design fusion hardware within 3D CAD software (e.g. NX)
Perform analysis (1D, 2D, 3D) with in-house and out-of-house tools (e.g. ANSYS) and hold design reviews to gather feedback and iterate to a fully functioning system
Learn from experts to expand your engineering skillset and domain knowledge
Work hands-on alongside experienced technicians to implement your hardware designs in rapid build-test-redesign loops
Troubleshoot hardware issues as they arise on integrated fusion generators
Required Skills:
Bachelor's degree in engineering
7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)
Advanced experience with CAD software (e.g. NX, Solidworks)
#LI-Onsite, #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will own thermo-mechanical hardware designs for Helion's fusion generator. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.\n\n\nYou Will:\n\n - Own and understand designs related to thermal, fluids, and structural subsystems – including establishing and iterating on requirements.\n\n - Learn from historical engineering approaches, design novel hardware, and test your solutions\n\n - Design fusion hardware within 3D CAD software (e.g. NX)\n\n - Perform analysis (1D, 2D, 3D) with in-house and out-of-house tools (e.g. ANSYS) and hold design reviews to gather feedback and iterate to a fully functioning system\n\n - Learn from experts to expand your engineering skillset and domain knowledge\n\n - Work hands-on alongside experienced technicians to implement your hardware designs in rapid build-test-redesign loops\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\n\n\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)\n\n - Advanced experience with CAD software (e.g. NX, Solidworks)\n\n#LI-Onsite, #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"2c79c829-73cd-4558-9934-ea5f848a040a","title":"Senior Software Engineer, Data Platform","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:35:53.044+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/2c79c829-73cd-4558-9934-ea5f848a040a","applyUrl":"https://jobs.ashbyhq.com/helion/2c79c829-73cd-4558-9934-ea5f848a040a/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What you will be doing
You will design, develop, and operate a secure, scalable, reliable, and efficient platform to facilitate the flow of data between internal and external systems supporting mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. This role is onsite at our headquarters in Everett, WA.
You will:
Design and develop large-scale, batch and real-time data pipelines, ELT processes, data warehouses, and data lakes, both on prem and in the cloud
Scale our data platform to support operational growth from millions of parts per year to millions per day
Monitor and continuously improve the performance and reliability of data connections and their impact on up-and-downstream systems, using best-in-class observability tools
Ensure data quality and governance by managing metadata like schemas, lineage, and access control
Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand data requirements and deliver solutions
Stay current with emerging data technologies while recommending battle-tested right-fit solutions that align with strategic goals
Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent data issues from stalling 24/7 production schedules
Required Skills:
Bachelor’s degree in computer science or a related field
8+ years of software and/or data engineering experience building and operating large-scale, distributed data systems
Hands-on experience with modern data storage and processing technologies (e.g., Kafka, Postgres, blob storage, Flink, dbt, Iceberg)
Expertise in Python and SQL; experience with other languages like Java, Scala, or Go
Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform
Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)
Experience with AI/ML, including LLMs and MCP servers
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat you will be doing\n\nYou will design, develop, and operate a secure, scalable, reliable, and efficient platform to facilitate the flow of data between internal and external systems supporting mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. This role is onsite at our headquarters in Everett, WA.\n\nYou will:\n\n - Design and develop large-scale, batch and real-time data pipelines, ELT processes, data warehouses, and data lakes, both on prem and in the cloud\n\n - Scale our data platform to support operational growth from millions of parts per year to millions per day\n\n - Monitor and continuously improve the performance and reliability of data connections and their impact on up-and-downstream systems, using best-in-class observability tools\n\n - Ensure data quality and governance by managing metadata like schemas, lineage, and access control\n\n - Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand data requirements and deliver solutions\n\n - Stay current with emerging data technologies while recommending battle-tested right-fit solutions that align with strategic goals\n\n - Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent data issues from stalling 24/7 production schedules\n\nRequired Skills:\n\n - Bachelor’s degree in computer science or a related field\n\n - 8+ years of software and/or data engineering experience building and operating large-scale, distributed data systems\n\n - Hands-on experience with modern data storage and processing technologies (e.g., Kafka, Postgres, blob storage, Flink, dbt, Iceberg)\n\n - Expertise in Python and SQL; experience with other languages like Java, Scala, or Go\n\n - Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform\n\n - Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)\n\n - Experience with AI/ML, including LLMs and MCP servers\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"3e9903d0-45d1-4ab6-81c9-864f2318b772","title":"Senior Software Engineer, Full Stack","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:35:31.654+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3e9903d0-45d1-4ab6-81c9-864f2318b772","applyUrl":"https://jobs.ashbyhq.com/helion/3e9903d0-45d1-4ab6-81c9-864f2318b772/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What you will be doing
You will design, develop, and operate secure, reliable, scalable, and delightfully usable full-stack applications to optimize processes between mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance, integrating with our internal data platform and external systems. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. This role is onsite at our headquarters in Everett, WA.
You will:
Design and develop frontends, APIs, workflows, database schemas, and caching layers
Be a part-time product manager and UX designer. You need to understand how people and processes interact with the software you build
Monitor and continuously improve the performance and reliability of our systems, using best-in-class observability tools
Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand feature and data requirements and deliver solutions
Stay current with emerging technologies while recommending battle-tested right-fit solutions that align with strategic goals
Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent issues from stalling 24/7 production schedules
Required Skills:
Bachelor’s degree in computer science or a related field
8+ years of software engineering experience building full-stack applications
Hands-on experience with modern web stacks (e.g., React, Next.js)
Expertise in HTML, CSS, TypeScript and a backend language like Go or Python
Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform
Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)
Familiar with UX design tools like Figma
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat you will be doing\n\nYou will design, develop, and operate secure, reliable, scalable, and delightfully usable full-stack applications to optimize processes between mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance, integrating with our internal data platform and external systems. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. This role is onsite at our headquarters in Everett, WA.\n\nYou will:\n\n - Design and develop frontends, APIs, workflows, database schemas, and caching layers\n\n - Be a part-time product manager and UX designer. You need to understand how people and processes interact with the software you build\n\n - Monitor and continuously improve the performance and reliability of our systems, using best-in-class observability tools\n\n - Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand feature and data requirements and deliver solutions\n\n - Stay current with emerging technologies while recommending battle-tested right-fit solutions that align with strategic goals\n\n - Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent issues from stalling 24/7 production schedules\n\nRequired Skills:\n\n - Bachelor’s degree in computer science or a related field\n\n - 8+ years of software engineering experience building full-stack applications\n\n - Hands-on experience with modern web stacks (e.g., React, Next.js)\n\n - Expertise in HTML, CSS, TypeScript and a backend language like Go or Python\n\n - Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform\n\n - Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)\n\n - Familiar with UX design tools like Figma\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"c50d7377-a506-4de5-804b-67f1df306393","title":"Senior Supplier Development Engineer, Electrical","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:49:14.019+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/c50d7377-a506-4de5-804b-67f1df306393","applyUrl":"https://jobs.ashbyhq.com/helion/c50d7377-a506-4de5-804b-67f1df306393/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Sr. Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.
You Will:
Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent
Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team
Support product ramp from new product introduction through to high-volume manufacturing
Define supplier technical and quality specifications based on engineering and program requirements
Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production
Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)
Develop and approve process controls for important characteristics
Recommend technical product improvements to reduce risk and potential defect opportunities
Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans
Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues
Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain
Improve the supply chain
Help build the supplier quality program and team at Helion
Help develop receiving inspection and quality standards
Required Skills:
5+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems
Bachelor's degree or higher in an engineering discipline, or relevant field
Experience managing external suppliers
Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)
Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)
Experience with quality systems (ISO 9000 / TS)
Able to travel up to 50% of the time
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Sr. Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.\n\nYou Will:\n\n - Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent\n\n - Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team\n\n - Support product ramp from new product introduction through to high-volume manufacturing\n\n - Define supplier technical and quality specifications based on engineering and program requirements\n\n - Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production\n\n - Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)\n\n - Develop and approve process controls for important characteristics\n\n - Recommend technical product improvements to reduce risk and potential defect opportunities\n\n - Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans\n\n - Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues\n\n - Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain\n\n - Improve the supply chain\n\n - Help build the supplier quality program and team at Helion\n\n - Help develop receiving inspection and quality standards\n\nRequired Skills:\n\n - 5+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems\n\n - Bachelor's degree or higher in an engineering discipline, or relevant field\n\n - Experience managing external suppliers\n\n - Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)\n\n - Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)\n\n - Experience with quality systems (ISO 9000 / TS)\n\n - Able to travel up to 50% of the time\n\n#LI-Onsite #LI-KL1\n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"b4efeb48-dbd7-42f3-b6a9-4f97c2074bf3","title":"Supplier Development Engineer, Electrical","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:52:13.398+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b4efeb48-dbd7-42f3-b6a9-4f97c2074bf3","applyUrl":"https://jobs.ashbyhq.com/helion/b4efeb48-dbd7-42f3-b6a9-4f97c2074bf3/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This role requires an onsite presence and you will report to our Senior Manager of Electrical Engineering at our Everett, WA office.
You Will:
Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent
Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team
Support product ramp from new product introduction through to high-volume manufacturing
Define supplier technical and quality specifications based on engineering and program requirements
Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production
Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)
Develop and approve process controls for important characteristics
Recommend technical product improvements to reduce risk and potential defect opportunities
Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans
Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues
Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain
Improve the supply chain
Help build the supplier quality program and team at Helion
Help develop receiving inspection and quality standards
Required Skills:
3+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems
Bachelor's degree or higher in an engineering discipline, or relevant field
Experience managing external suppliers
Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)
Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)
Experience with quality systems (ISO 9000 / TS)
Able to travel up to 50% of the time
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This role requires an onsite presence and you will report to our Senior Manager of Electrical Engineering at our Everett, WA office.\n\nYou Will:\n\n - Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent\n\n - Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team\n\n - Support product ramp from new product introduction through to high-volume manufacturing\n\n - Define supplier technical and quality specifications based on engineering and program requirements\n\n - Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production\n\n - Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)\n\n - Develop and approve process controls for important characteristics\n\n - Recommend technical product improvements to reduce risk and potential defect opportunities\n\n - Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans\n\n - Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues\n\n - Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain\n\n - Improve the supply chain\n\n - Help build the supplier quality program and team at Helion\n\n - Help develop receiving inspection and quality standards\n\nRequired Skills:\n\n - 3+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems\n\n - Bachelor's degree or higher in an engineering discipline, or relevant field\n\n - Experience managing external suppliers\n\n - Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)\n\n - Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)\n\n - Experience with quality systems (ISO 9000 / TS)\n\n - Able to travel up to 50% of the time\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"3a958165-7937-4eb1-b0b3-9d8dab3c0d1d","title":"Senior Test Engineer","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T21:38:14.935+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3a958165-7937-4eb1-b0b3-9d8dab3c0d1d","applyUrl":"https://jobs.ashbyhq.com/helion/3a958165-7937-4eb1-b0b3-9d8dab3c0d1d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Test Engineer at Helion, you will be responsible for designing, building, and sustaining the electrical test systems that validate PCBAs, power electronics, and high-voltage assemblies used across our fusion generators. You will operate at the intersection of design engineering and production, ensuring that test infrastructure is robust, repeatable, and safe for hand-on execution by technicians.
Your work will directly enable faster hardware iteration, improved first-pass yield, and reliable delivery of mission-critical electrical systems that support Helion's fusion generators and pulsed-power architecture. This is a hands-on, lab-based role reporting to the Production Manager and working closely with Design Engineers, R&D Engineers, and Technicians/Supervisors. This is onsite role located at our Everett, WA office.
You Will:
Design and deliver electrical test systems for PCBA and high-voltage assemblies, including test rack architecture, fixture design, instrumentation selection, electrical integration, and supporting automation
Design test fixture PCBAs used within test racks and fixturing, owning schematic capture, layout, review, and bring-up to enable functional validation and diagnostics of production hardware
Build, wire, debug, and maintain complete test racks and fixtures, including power distribution, safety interlocks, signal routing, and data acquisition integration
Develop and maintain data acquisition and control tools using Python or PLC-based systems to support sequencing, measurement, and reporting
Write and maintain test procedures, calibration standards, and test limits in collaboration with design engineering and production leadership
Analyze test data to generate FPY, yield, and performance metrics, and partner with design teams to refine thresholds and improve robustness
Work hands-on with technicians and supervisors to standardize safe, repeatable test execution and continuously improve test system scalability and maintainability
Support deployment and sustainment of test infrastructure at Contract Manufacturers, including validation of test hardware and associated electronics
Required Skills:
Bachelor’s degree in electrical engineering, Mechatronics, or a related field
5+ years of experience developing and supporting electrical or electronic test systems in R&D or production environments
Demonstrated experience designing PCBAs for test fixtures or test systems, including schematic capture, layout, review, and bring-up
Proficiency with ECAD tools such as Altium Designer or equivalent
Strong hands-on experience designing, building, wiring, and debugging test racks, fixtures, harnesses, and control systems
Working experience with Python or PLC-based systems for test sequencing, automation, and data acquisition
Proficiency using standard lab instrumentation including oscilloscopes, DMMs, power supplies, electronic loads, and spectrum analyzers
Strong understanding of electrical safety principles and lab best practices
Strong analytical skills with experience interpreting FPY, yield, or performance metrics
Proven ability to collaborate across design engineering, production, and technician teams and communicate clearly at multiple levels
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs a Test Engineer at Helion, you will be responsible for designing, building, and sustaining the electrical test systems that validate PCBAs, power electronics, and high-voltage assemblies used across our fusion generators. You will operate at the intersection of design engineering and production, ensuring that test infrastructure is robust, repeatable, and safe for hand-on execution by technicians.\n\nYour work will directly enable faster hardware iteration, improved first-pass yield, and reliable delivery of mission-critical electrical systems that support Helion's fusion generators and pulsed-power architecture. This is a hands-on, lab-based role reporting to the Production Manager and working closely with Design Engineers, R&D Engineers, and Technicians/Supervisors. This is onsite role located at our Everett, WA office. \n\nYou Will:\n\n - Design and deliver electrical test systems for PCBA and high-voltage assemblies, including test rack architecture, fixture design, instrumentation selection, electrical integration, and supporting automation\n\n - Design test fixture PCBAs used within test racks and fixturing, owning schematic capture, layout, review, and bring-up to enable functional validation and diagnostics of production hardware\n\n - Build, wire, debug, and maintain complete test racks and fixtures, including power distribution, safety interlocks, signal routing, and data acquisition integration\n\n - Develop and maintain data acquisition and control tools using Python or PLC-based systems to support sequencing, measurement, and reporting\n\n - Write and maintain test procedures, calibration standards, and test limits in collaboration with design engineering and production leadership\n\n - Analyze test data to generate FPY, yield, and performance metrics, and partner with design teams to refine thresholds and improve robustness\n\n - Work hands-on with technicians and supervisors to standardize safe, repeatable test execution and continuously improve test system scalability and maintainability\n\n - Support deployment and sustainment of test infrastructure at Contract Manufacturers, including validation of test hardware and associated electronics\n\nRequired Skills:\n\n - Bachelor’s degree in electrical engineering, Mechatronics, or a related field\n\n - 5+ years of experience developing and supporting electrical or electronic test systems in R&D or production environments\n\n - Demonstrated experience designing PCBAs for test fixtures or test systems, including schematic capture, layout, review, and bring-up\n\n - Proficiency with ECAD tools such as Altium Designer or equivalent\n\n - Strong hands-on experience designing, building, wiring, and debugging test racks, fixtures, harnesses, and control systems\n\n - Working experience with Python or PLC-based systems for test sequencing, automation, and data acquisition\n\n - Proficiency using standard lab instrumentation including oscilloscopes, DMMs, power supplies, electronic loads, and spectrum analyzers\n\n - Strong understanding of electrical safety principles and lab best practices\n\n - Strong analytical skills with experience interpreting FPY, yield, or performance metrics\n\n - Proven ability to collaborate across design engineering, production, and technician teams and communicate clearly at multiple levels\n\n#LI-Onsite\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"423a9d67-00c6-46ab-9fe1-a1b469a9a049","title":"Senior Semiconductor Device Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T23:51:20.691+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/423a9d67-00c6-46ab-9fe1-a1b469a9a049","applyUrl":"https://jobs.ashbyhq.com/helion/423a9d67-00c6-46ab-9fe1-a1b469a9a049/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will drive the design and development of cutting-edge semiconductors for high-performance pulsed power systems used in Helion’s fusion generators. You will work in a fast-paced environment to develop, test, and implement high-reliability, high-efficiency switching components, with a strong emphasis on rapid development cycles. You will report directly to our Senior Manager of Electrical Engineering, and this is an onsite role located at our Everett, WA office.
You Will:
Spearhead efforts to gather and utilize requirements for switching components and apply them toward design of physical products
Drive the design and development of novel pulsed power electronics components and systems, focusing on high-efficiency, high-reliability semiconductor solutions
Collaborate with cross-functional teams to ensure integration of electrical, mechanical, and physics-based principles in semiconductor development
Lead development cycles, including hands-on prototyping, small-scale testing, and large-scale performance validation
Conduct simulations, testing, and analysis to validate designs and iterate quickly using data-backed decision making
Stay informed on emerging semiconductor materials, device architectures, and industry trends
Document design processes, specifications, test results, and findings for continuous improvement and knowledge sharing
Required Skills:
Bachelor’s, Master’s, or higher degree in Electrical Engineering, Physics, or a related field
8+ years of experience in power electronics and high voltage semiconductor design
Strong foundation in semiconductor physics, power electronics, and circuit design principles
Proven experience with rapid prototyping and development cycles in a high-tech environment
Background working with semiconductor fabricators to manufacture semiconductor devices
Proficiency with simulation tools and test equipment for power electronics
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will drive the design and development of cutting-edge semiconductors for high-performance pulsed power systems used in Helion’s fusion generators. You will work in a fast-paced environment to develop, test, and implement high-reliability, high-efficiency switching components, with a strong emphasis on rapid development cycles. You will report directly to our Senior Manager of Electrical Engineering, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Spearhead efforts to gather and utilize requirements for switching components and apply them toward design of physical products \n\n - Drive the design and development of novel pulsed power electronics components and systems, focusing on high-efficiency, high-reliability semiconductor solutions\n\n - Collaborate with cross-functional teams to ensure integration of electrical, mechanical, and physics-based principles in semiconductor development\n\n - Lead development cycles, including hands-on prototyping, small-scale testing, and large-scale performance validation\n\n - Conduct simulations, testing, and analysis to validate designs and iterate quickly using data-backed decision making\n\n - Stay informed on emerging semiconductor materials, device architectures, and industry trends\n\n - Document design processes, specifications, test results, and findings for continuous improvement and knowledge sharing\n\nRequired Skills:\n\n - Bachelor’s, Master’s, or higher degree in Electrical Engineering, Physics, or a related field\n\n - 8+ years of experience in power electronics and high voltage semiconductor design\n\n - Strong foundation in semiconductor physics, power electronics, and circuit design principles\n\n - Proven experience with rapid prototyping and development cycles in a high-tech environment\n\n - Background working with semiconductor fabricators to manufacture semiconductor devices \n\n - Proficiency with simulation tools and test equipment for power electronics\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"76ee70fa-9803-4b21-b87a-4c1168add50b","title":"Senior Engineering Technician, Operations Support","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-17T21:09:17.145+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/76ee70fa-9803-4b21-b87a-4c1168add50b","applyUrl":"https://jobs.ashbyhq.com/helion/76ee70fa-9803-4b21-b87a-4c1168add50b/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
You'll work alongside engineers and scientists to transform ideas into prototypes, prototypes into experiments, and experiments into the next generation of Helion fusion machines.
This isn't a routine technician role. It's a hands-on engineering role for people who enjoy solving complex technical challenges, building first-of-a-kind hardware, and working in a fast-paced R&D environment where every day presents new opportunities to build, test, troubleshoot, maintain, and improve cutting-edge fusion systems.
One day, you might be troubleshooting high-voltage pulsed power hardware or repairing machine subsystems. Next, you could be fabricating a prototype, integrating new diagnostics, supporting machine upgrades, or reconfiguring a test bay to enable the next phase of development for Helion fusion machines.
You Will:
Collaborate with engineers and scientists to fabricate, assemble, integrate, test, troubleshoot, operate, maintain, and repair complex mechanical, electrical, and electromechanical systems
Support the maintenance, repair, upgrade, and ongoing development of Polaris, Tiny Merge, and future generations of Helion fusion machines
Install, integrate, troubleshoot, and maintain high-voltage pulsed power, vacuum, fuel delivery, cooling, and associated support systems
Fabricate first-of-a-kind prototypes, custom assemblies, fixtures, tooling, and instrumentation enclosures that enable rapid engineering design iterations
Perform PCB assembly, soldering, rework, wiring harness fabrication, and custom cable builds
Install, integrate, calibrate, and maintain diagnostics, sensors, cameras, and scientific instrumentation used to characterize machine performance and support experimental development
Support upgrades, modifications, and reconfiguration of experimental test infrastructure to enable evolving research and development activities
Perform mechanical and electrical assembly using engineering drawings, electrical schematics, and work instructions
Safely operate scissor lifts, forklifts, overhead lifting equipment, and fall protection systems while working throughout Helion facilities
Communicate technical findings, project status, and troubleshooting results with engineers, scientists, and technical owners
Create and maintain technical documentation, build records, test logs, and inventory while maintaining the highest standards of safety, quality, and operational excellence
Support either our 6:00 AM – 2:30 PM or 11:00 AM – 7:30 PM Monday through Friday schedule at our Everett, WA facility
Required Skills:
5+ years of hands-on experience building, integrating, testing, operating, or maintaining complex electromechanical, industrial, or experimental hardware systems
Demonstrated ability to troubleshoot complex electrical, mechanical, and instrumentation systems where root causes are not immediately apparent
Experience developing, integrating, or supporting first-of-a-kind hardware in an R&D, advanced manufacturing, aerospace, semiconductor, robotics, or similar technical environment
Strong hands-on fabrication and prototyping skills, including mechanical assembly, machining, fixture design, and rapid hardware iteration
Proficiency with electrical assembly, wiring harnesses, cable fabrication, soldering, PCB assembly, and signal routing
Experience using electrical test equipment such as multimeters, oscilloscopes, power supplies, and data acquisition equipment
Ability to read and interpret electrical schematics, engineering drawings, wiring diagrams, and technical documentation
Experience working safely around high-energy electrical or industrial systems while following established safety procedures
Ability to work effectively in a fast-paced R&D environment where priorities evolve as hardware and experiments mature
Strong communication, organization, and documentation skills with the ability to clearly communicate technical issues and maintain accurate build and test records
Preferred Skills:
Experience supporting vacuum systems, including rough vacuum, high vacuum, or ultra-high vacuum (UHV) equipment, vacuum hardware, leak detection, and vacuum instrumentation
Experience with pulsed power systems, power electronics, or high-energy experimental equipment
Experience supporting experimental test infrastructure, laboratory environments, or prototype development programs
Experience working in semiconductor, aerospace, plasma physics, or other advanced technology development environments
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing\n\nYou'll work alongside engineers and scientists to transform ideas into prototypes, prototypes into experiments, and experiments into the next generation of Helion fusion machines.\n\nThis isn't a routine technician role. It's a hands-on engineering role for people who enjoy solving complex technical challenges, building first-of-a-kind hardware, and working in a fast-paced R&D environment where every day presents new opportunities to build, test, troubleshoot, maintain, and improve cutting-edge fusion systems.\n\nOne day, you might be troubleshooting high-voltage pulsed power hardware or repairing machine subsystems. Next, you could be fabricating a prototype, integrating new diagnostics, supporting machine upgrades, or reconfiguring a test bay to enable the next phase of development for Helion fusion machines.\n\nYou Will:\n\n - Collaborate with engineers and scientists to fabricate, assemble, integrate, test, troubleshoot, operate, maintain, and repair complex mechanical, electrical, and electromechanical systems\n\n - Support the maintenance, repair, upgrade, and ongoing development of Polaris, Tiny Merge, and future generations of Helion fusion machines\n\n - Install, integrate, troubleshoot, and maintain high-voltage pulsed power, vacuum, fuel delivery, cooling, and associated support systems\n\n - Fabricate first-of-a-kind prototypes, custom assemblies, fixtures, tooling, and instrumentation enclosures that enable rapid engineering design iterations\n\n - Perform PCB assembly, soldering, rework, wiring harness fabrication, and custom cable builds\n\n - Install, integrate, calibrate, and maintain diagnostics, sensors, cameras, and scientific instrumentation used to characterize machine performance and support experimental development\n\n - Support upgrades, modifications, and reconfiguration of experimental test infrastructure to enable evolving research and development activities\n\n - Perform mechanical and electrical assembly using engineering drawings, electrical schematics, and work instructions\n\n - Safely operate scissor lifts, forklifts, overhead lifting equipment, and fall protection systems while working throughout Helion facilities\n\n - Communicate technical findings, project status, and troubleshooting results with engineers, scientists, and technical owners\n\n - Create and maintain technical documentation, build records, test logs, and inventory while maintaining the highest standards of safety, quality, and operational excellence\n\n - Support either our 6:00 AM – 2:30 PM or 11:00 AM – 7:30 PM Monday through Friday schedule at our Everett, WA facility\n\nRequired Skills:\n\n - 5+ years of hands-on experience building, integrating, testing, operating, or maintaining complex electromechanical, industrial, or experimental hardware systems\n\n - Demonstrated ability to troubleshoot complex electrical, mechanical, and instrumentation systems where root causes are not immediately apparent\n\n - Experience developing, integrating, or supporting first-of-a-kind hardware in an R&D, advanced manufacturing, aerospace, semiconductor, robotics, or similar technical environment\n\n - Strong hands-on fabrication and prototyping skills, including mechanical assembly, machining, fixture design, and rapid hardware iteration\n\n - Proficiency with electrical assembly, wiring harnesses, cable fabrication, soldering, PCB assembly, and signal routing\n\n - Experience using electrical test equipment such as multimeters, oscilloscopes, power supplies, and data acquisition equipment\n\n - Ability to read and interpret electrical schematics, engineering drawings, wiring diagrams, and technical documentation\n\n - Experience working safely around high-energy electrical or industrial systems while following established safety procedures\n\n - Ability to work effectively in a fast-paced R&D environment where priorities evolve as hardware and experiments mature\n\n - Strong communication, organization, and documentation skills with the ability to clearly communicate technical issues and maintain accurate build and test records\n\nPreferred Skills:\n\n - Experience supporting vacuum systems, including rough vacuum, high vacuum, or ultra-high vacuum (UHV) equipment, vacuum hardware, leak detection, and vacuum instrumentation\n\n - Experience with pulsed power systems, power electronics, or high-energy experimental equipment\n\n - Experience supporting experimental test infrastructure, laboratory environments, or prototype development programs\n\n - Experience working in semiconductor, aerospace, plasma physics, or other advanced technology development environments\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"424e1bb6-efd4-4306-b659-ff4fea3eb7f2","title":"R&D Manager - LabVIEW Controls Systems","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-01-14T22:24:46.816+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/424e1bb6-efd4-4306-b659-ff4fea3eb7f2","applyUrl":"https://jobs.ashbyhq.com/helion/424e1bb6-efd4-4306-b659-ff4fea3eb7f2/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will manage the control systems team in the R&D department. This team is responsible for delivering and maintaining control and data acquisition systems. These systems are used to control HV electrical test bays, control plasma technology development machines, control Production Manufacturing end-of-line testing, and control FRC plasma machines of varying sizes.
This team will be one of the primary contributors to the control system of our first power plant, Orion, and managing the development collaboration with the Engineering department will be a primary focus. You will report to the R&D Manager, onsite located at our Everett, WA office.
You Will:
Effectively lead controls engineers in the timely and successful delivery of a variety of control and data acquisition systems used across the organization
Develop and maintain effective, and productive cross-team collaborations, specifically those related to the buildout of the Orion machine
Proactively identify and mitigate future technical, and personnel blockers
Foster individual contributor career growth through effective leadership
Recruit and grow the team as needed to succeed in its mission
Effectively advocate for the team to other managers and up the leadership chain
Work with the team to develop, define, implement, and maintain code development and documentation practices that support future growth
Required Skills:
Minimum 2+ years managing controls engineers in a scaling environment
Experience developing control systems for large-scale, complex systems
Demonstrated technical proficiency with LabVIEW and NI hardware in control system applications, including PXI, cRIO, RT, and FPGA
Experience incorporating PLCs into LabVIEW and NI based control systems
Experience incorporating text-based code (e.g. C, Matlab) into LabVIEW and NI based control systems
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will manage the control systems team in the R&D department. This team is responsible for delivering and maintaining control and data acquisition systems. These systems are used to control HV electrical test bays, control plasma technology development machines, control Production Manufacturing end-of-line testing, and control FRC plasma machines of varying sizes.\n\nThis team will be one of the primary contributors to the control system of our first power plant, Orion, and managing the development collaboration with the Engineering department will be a primary focus. You will report to the R&D Manager, onsite located at our Everett, WA office.\n\nYou Will:\n\n - Effectively lead controls engineers in the timely and successful delivery of a variety of control and data acquisition systems used across the organization\n\n - Develop and maintain effective, and productive cross-team collaborations, specifically those related to the buildout of the Orion machine\n\n - Proactively identify and mitigate future technical, and personnel blockers\n\n - Foster individual contributor career growth through effective leadership\n\n - Recruit and grow the team as needed to succeed in its mission\n\n - Effectively advocate for the team to other managers and up the leadership chain\n\n - Work with the team to develop, define, implement, and maintain code development and documentation practices that support future growth\n\nRequired Skills:\n\n - Minimum 2+ years managing controls engineers in a scaling environment\n\n - Experience developing control systems for large-scale, complex systems\n\n - Demonstrated technical proficiency with LabVIEW and NI hardware in control system applications, including PXI, cRIO, RT, and FPGA\n\n - Experience incorporating PLCs into LabVIEW and NI based control systems\n\n - Experience incorporating text-based code (e.g. C, Matlab) into LabVIEW and NI based control systems\n\n \n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"c4724186-c706-458e-a47f-5be613ed9442","title":"Senior Manager Mechanical Engineering, Structures","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:32:53.501+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/c4724186-c706-458e-a47f-5be613ed9442","applyUrl":"https://jobs.ashbyhq.com/helion/c4724186-c706-458e-a47f-5be613ed9442/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices. Your role will focus on solving complex, high-impact problems that influence system performance, while also growing a high-performing engineering team. You will establish technical standards, drive execution, and shape design processes to increase the speed and quality of innovation. This role is onsite at our headquarters in Everett, WA.
You Will:
Grow and mentor a team of multidisciplinary structural and mechanical engineers
Oversee design of machine architecture, high-performance structural systems, shielding, and piece part + assembly design
Drive high-level architectural decisions on neutron shielding, primary structures, racking, and plant design schemes
Lead design, analysis, and manufacturing process improvements to increase throughput
Collaborate with Research, Science, Electrical, and Controls teams to derive requirements and meet program goals
Required Skills:
Bachelor's degree in Engineering
10+ years of structural/mechanical engineering experience, including 3+ years in an engineering management role
Demonstrated ability to hire and grow engineers providing impactful career development
Experience leading multidisciplinary teams with full-scope project ownership
Proven ability to manage complex engineering projects with schedule accountability
Hands-on exposure to multiple engineering disciplines such as mechanical, thermal, and large structures
Ability to apply engineering first-principles and structured problem-solving to technical challenges
#LI-Onsite, #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices. Your role will focus on solving complex, high-impact problems that influence system performance, while also growing a high-performing engineering team. You will establish technical standards, drive execution, and shape design processes to increase the speed and quality of innovation. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Grow and mentor a team of multidisciplinary structural and mechanical engineers\n\n - Oversee design of machine architecture, high-performance structural systems, shielding, and piece part + assembly design \n\n - Drive high-level architectural decisions on neutron shielding, primary structures, racking, and plant design schemes\n\n - Lead design, analysis, and manufacturing process improvements to increase throughput\n\n - Collaborate with Research, Science, Electrical, and Controls teams to derive requirements and meet program goals\n\nRequired Skills:\n\n - Bachelor's degree in Engineering\n\n - 10+ years of structural/mechanical engineering experience, including 3+ years in an engineering management role\n\n - Demonstrated ability to hire and grow engineers providing impactful career development\n\n - Experience leading multidisciplinary teams with full-scope project ownership\n\n - Proven ability to manage complex engineering projects with schedule accountability\n\n - Hands-on exposure to multiple engineering disciplines such as mechanical, thermal, and large structures\n\n - Ability to apply engineering first-principles and structured problem-solving to technical challenges\n\n#LI-Onsite, #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"266bb6e9-153a-4ec2-9929-5194392fc26d","title":"LabVIEW Controls Engineer","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-23T21:59:37.391+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/266bb6e9-153a-4ec2-9929-5194392fc26d","applyUrl":"https://jobs.ashbyhq.com/helion/266bb6e9-153a-4ec2-9929-5194392fc26d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are seeking a Controls & Data Acquisition Engineer to design, develop, and support control and DAQ systems for fusion technology R&D and manufacturing. These systems enable operation of development test bays, manufacturing automation, and end-of-line quality and acceptance testing.
You will work across the full system lifecycle—from requirements definition through deployment and operational support—collaborating closely with hardware, software, and manufacturing engineers. You will report to the R&D Manager, onsite in our Everett, WA office.
You Will:
Design, develop, and maintain LabVIEW-based control and DAQ systems using PXI/PXIe/cRIO/RIO hardware in Windows and/or Linux RT environments
Develop intuitive GUIs for machine control, health monitoring, and data visualization
Implement state-machine-based control architectures and integrate modular subsystems (cRIOs, PLCs, industrial controllers)
Integrate sensors and external instrumentation into high-speed data acquisition systems
Implement and maintain network communications and device interfaces using industry protocols (e.g., RS-232, TCP/IP, VISA, Modbus)
Perform system verification, bench testing, commissioning, and deployment
Provide operational troubleshooting and sustainment support
Produce clear, complete system documentation, including schematics, block diagrams, and well-documented code
Communicate technical progress, risks, and tradeoffs to stakeholders
Required Skills:
B.S. in Computer Science, Electrical Engineering, Mechanical Engineering, or related field with 3+ years of relevant experience, or M.S. with 1+ years of experience
Strong proficiency in LabVIEW, including control system and GUI development
Experience owning end-to-end development of complex control and DAQ systems
Hands-on experience with National Instruments hardware (PXI, PXIe, cRIO), including Real-Time and/or FPGA environments
Experience programming industrial and automation hardware (PLCs, cRIOs, microcontrollers)
Familiarity with common communication protocols (UART, RS-232, TCP/IP, SPI, I²C, Modbus)
Experience integrating and controlling laboratory and industrial equipment (e.g., flow controllers, gauges, pumps, oscilloscopes, power supplies)
Experience with power supply control, precision timing, voltage monitoring, and high-speed data acquisition
Experience developing and maintaining detailed technical documentation, including electrical schematics and system diagrams
Strong learning mindset and desire to innovate
#LI-Onsite #LI-IB1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are seeking a Controls & Data Acquisition Engineer to design, develop, and support control and DAQ systems for fusion technology R&D and manufacturing. These systems enable operation of development test bays, manufacturing automation, and end-of-line quality and acceptance testing.\n\nYou will work across the full system lifecycle—from requirements definition through deployment and operational support—collaborating closely with hardware, software, and manufacturing engineers. You will report to the R&D Manager, onsite in our Everett, WA office.\n\nYou Will:\n\n - Design, develop, and maintain LabVIEW-based control and DAQ systems using PXI/PXIe/cRIO/RIO hardware in Windows and/or Linux RT environments\n\n - Develop intuitive GUIs for machine control, health monitoring, and data visualization\n\n - Implement state-machine-based control architectures and integrate modular subsystems (cRIOs, PLCs, industrial controllers)\n\n - Integrate sensors and external instrumentation into high-speed data acquisition systems\n\n - Implement and maintain network communications and device interfaces using industry protocols (e.g., RS-232, TCP/IP, VISA, Modbus)\n\n - Perform system verification, bench testing, commissioning, and deployment\n\n - Provide operational troubleshooting and sustainment support\n\n - Produce clear, complete system documentation, including schematics, block diagrams, and well-documented code\n\n - Communicate technical progress, risks, and tradeoffs to stakeholders\n\nRequired Skills:\n\n - B.S. in Computer Science, Electrical Engineering, Mechanical Engineering, or related field with 3+ years of relevant experience, or M.S. with 1+ years of experience\n\n - Strong proficiency in LabVIEW, including control system and GUI development\n\n - Experience owning end-to-end development of complex control and DAQ systems\n\n - Hands-on experience with National Instruments hardware (PXI, PXIe, cRIO), including Real-Time and/or FPGA environments\n\n - Experience programming industrial and automation hardware (PLCs, cRIOs, microcontrollers)\n\n - Familiarity with common communication protocols (UART, RS-232, TCP/IP, SPI, I²C, Modbus)\n\n - Experience integrating and controlling laboratory and industrial equipment (e.g., flow controllers, gauges, pumps, oscilloscopes, power supplies)\n\n - Experience with power supply control, precision timing, voltage monitoring, and high-speed data acquisition\n\n - Experience developing and maintaining detailed technical documentation, including electrical schematics and system diagrams\n\n - Strong learning mindset and desire to innovate\n\n\n\n#LI-Onsite #LI-IB1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"0e786f93-c149-41eb-b8ba-7eb41df18b13","title":"Knowledge Systems Engineer - Fusion Systems","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-05T17:49:48.590+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/0e786f93-c149-41eb-b8ba-7eb41df18b13","applyUrl":"https://jobs.ashbyhq.com/helion/0e786f93-c149-41eb-b8ba-7eb41df18b13/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We’re looking for someone to build Helion’s internal knowledge foundation from the ground up—capturing operational procedures, experimental insights, and machine behavior—and turning that into a structured, scalable system that can support AI-assisted workflows and future automation.
This role spans documentation, data structuring, and applied AI. You’ll work directly with engineers and operators to turn fragmented, implicit, and fast-changing knowledge into something durable, searchable, and actionable. This is a hands-on, applied role focused on building systems around LLMs and operational data—not training models from scratch. This is an onsite role that reports directly to the Research and Development Manager at our Everett, WA office.
You Will:
Capture & document procedures, experiments, and workflows by partnering with engineers and operators to turn fragmented knowledge into clear runbooks
Structure & standardize documentation through docs-as-code practices, including versioning, formatting, reviews, and defined schemas
Integrate & organize data by linking documentation with logs, configs, and analysis outputs to improve consistency and clarity
Develop AI-assisted tools by partnering with software engineers to inform LLM-powered solutions
Prototype automation through lightweight agents and workflows (e.g., run summaries, anomaly investigation) while laying the foundation for more advanced systems
Required Skills:
Experience with data or knowledge modeling (schemas, metadata, ontologies)
Experience with technical documentation systems (e.g., Confluence/Jira or similar)
Strong software engineering skills (Python or similar)
Ability to structure ambiguous information into structured systems
Experience working with domain experts to extract knowledge
Preferred Skills:
Experience building internal tools for engineering teams
Exposure to CAD or engineering design tools
Experience using LLM APIs (e.g., OpenAI, Claude) in production systems
Experience building LLM-powered tools (RAG, search, etc.)
Exposure to large scale hardware environment
#LI-Onsite #LI-IB1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe’re looking for someone to build Helion’s internal knowledge foundation from the ground up—capturing operational procedures, experimental insights, and machine behavior—and turning that into a structured, scalable system that can support AI-assisted workflows and future automation.\n\nThis role spans documentation, data structuring, and applied AI. You’ll work directly with engineers and operators to turn fragmented, implicit, and fast-changing knowledge into something durable, searchable, and actionable. This is a hands-on, applied role focused on building systems around LLMs and operational data—not training models from scratch. This is an onsite role that reports directly to the Research and Development Manager at our Everett, WA office.\n\nYou Will:\n\n - Capture & document procedures, experiments, and workflows by partnering with engineers and operators to turn fragmented knowledge into clear runbooks\n\n - Structure & standardize documentation through docs-as-code practices, including versioning, formatting, reviews, and defined schemas\n\n - Integrate & organize data by linking documentation with logs, configs, and analysis outputs to improve consistency and clarity\n\n - Develop AI-assisted tools by partnering with software engineers to inform LLM-powered solutions\n\n - Prototype automation through lightweight agents and workflows (e.g., run summaries, anomaly investigation) while laying the foundation for more advanced systems\n\n\n\nRequired Skills:\n\n - Experience with data or knowledge modeling (schemas, metadata, ontologies)\n\n - Experience with technical documentation systems (e.g., Confluence/Jira or similar)\n\n - Strong software engineering skills (Python or similar)\n\n - Ability to structure ambiguous information into structured systems\n\n - Experience working with domain experts to extract knowledge\n\n\n\nPreferred Skills:\n\n - Experience building internal tools for engineering teams\n\n - Exposure to CAD or engineering design tools\n\n - Experience using LLM APIs (e.g., OpenAI, Claude) in production systems\n\n - Experience building LLM-powered tools (RAG, search, etc.)\n\n - Exposure to large scale hardware environment\n\n #LI-Onsite #LI-IB1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"47995610-109e-45b7-9855-919adde1e803","title":"Principal Applied Plasma Data Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-18T17:08:58.315+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/47995610-109e-45b7-9855-919adde1e803","applyUrl":"https://jobs.ashbyhq.com/helion/47995610-109e-45b7-9855-919adde1e803/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Principal Applied Plasma Data Scientist specializing in physics‑grounded machine learning to accelerate experimental FRC plasma modeling. This role will focus on developing and validating advanced ML frameworks—such as differentiable‑physics models, PINNs, surrogate modeling, or hybrid physics+ML systems—while integrating these tools with simulation and diagnostics pipelines. You will support cross‑disciplinary fusion research and contribute to high‑impact modeling that informs experimental design and interpretation. This onsite position reports to the Experimental Science Manager at our Everett, WA office and plays a key role in advancing fusion electricity development.
You Will:
Develop and validate machine‑learning frameworks for FRC plasma‑dynamics, leveraging physics‑grounded ML approaches (e.g., differentiable physics, PINNs, surrogate modeling, or hybrid physics+ML systems)
Integrate ML models with existing simulation tools and experimental‑diagnostic pipelines to enable hybrid physics + data‑driven validation workflows
Reproduce experimental plasma conditions within ML modeling workflows to support interpretation of magnetic diffusion, circuit response, and diagnostic measurements
Generate analysis scripts for post‑processing, parsing model outputs, and visualizing correlations between ML‑based predictions and experimental results
Collaborate with plasma‑physics, pulsed‑power, and transient‑magnetics experts to expand the fidelity and fusion‑relevance of ML‑enabled modeling frameworks
Communicate results with rigor and clarity through reports, presentations, and technical visualizations for research stakeholders
Required Skills:
PhD in Physics, Engineering, Applied Math, Computational Science, Machine Learning, or related field with emphasis on physics‑grounded modeling
10+ years of industry or research‑lab experience applying machine learning in experimental, simulation‑driven, or scientific R&D environments
Expertise with physics‑informed or physics‑constrained ML methods, such as differentiable physics, PINNs, scientific ML, surrogate modeling, or reduced‑order models for complex physical systems
Experience integrating ML models with scientific‑computing workflows, simulation tools, or experimental diagnostics
Proficiency scripting for data parsing, model analysis, and visualization (MATLAB, Python, or similar; Fortran or HPC exposure valuable)
Familiarity with magnetic diffusion, circuit coupling, or plasma‑dynamics modeling in pulsed‑power or electromagnetics systems
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nHelion is hiring a Principal Applied Plasma Data Scientist specializing in physics‑grounded machine learning to accelerate experimental FRC plasma modeling. This role will focus on developing and validating advanced ML frameworks—such as differentiable‑physics models, PINNs, surrogate modeling, or hybrid physics+ML systems—while integrating these tools with simulation and diagnostics pipelines. You will support cross‑disciplinary fusion research and contribute to high‑impact modeling that informs experimental design and interpretation. This onsite position reports to the Experimental Science Manager at our Everett, WA office and plays a key role in advancing fusion electricity development. \n\nYou Will:\n\n - Develop and validate machine‑learning frameworks for FRC plasma‑dynamics, leveraging physics‑grounded ML approaches (e.g., differentiable physics, PINNs, surrogate modeling, or hybrid physics+ML systems) \n\n - Integrate ML models with existing simulation tools and experimental‑diagnostic pipelines to enable hybrid physics + data‑driven validation workflows \n\n - Reproduce experimental plasma conditions within ML modeling workflows to support interpretation of magnetic diffusion, circuit response, and diagnostic measurements \n\n - Generate analysis scripts for post‑processing, parsing model outputs, and visualizing correlations between ML‑based predictions and experimental results \n\n - Collaborate with plasma‑physics, pulsed‑power, and transient‑magnetics experts to expand the fidelity and fusion‑relevance of ML‑enabled modeling frameworks \n\n - Communicate results with rigor and clarity through reports, presentations, and technical visualizations for research stakeholders \n\nRequired Skills:\n\n - PhD in Physics, Engineering, Applied Math, Computational Science, Machine Learning, or related field with emphasis on physics‑grounded modeling \n\n - 10+ years of industry or research‑lab experience applying machine learning in experimental, simulation‑driven, or scientific R&D environments \n\n - Expertise with physics‑informed or physics‑constrained ML methods, such as differentiable physics, PINNs, scientific ML, surrogate modeling, or reduced‑order models for complex physical systems \n\n - Experience integrating ML models with scientific‑computing workflows, simulation tools, or experimental diagnostics \n\n - Proficiency scripting for data parsing, model analysis, and visualization (MATLAB, Python, or similar; Fortran or HPC exposure valuable) \n\n - Familiarity with magnetic diffusion, circuit coupling, or plasma‑dynamics modeling in pulsed‑power or electromagnetics systems \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"bfb14f68-c80a-4c07-8552-4c9bf5bed413","title":"Integration and Test Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-26T19:56:09.435+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/bfb14f68-c80a-4c07-8552-4c9bf5bed413","applyUrl":"https://jobs.ashbyhq.com/helion/bfb14f68-c80a-4c07-8552-4c9bf5bed413/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead cross-subsystem integration and test activities for Helion’s current and future fusion generator prototypes. This is a hands-on, role with broad technical scope and responsibility through build and commissioning phases. You will report to a Mechanical Engineering Lead and play a key role in shaping the execution and culture of a growing engineering team. This role is onsite at our headquarters in Everett, WA.
You Will:
Own the integration sequence and day-to-day execution of assembly across generator subsystems, including vacuum systems, electromagnets, high-voltage capacitor systems, controls, diagnostics, and radiation safety
Develop and manage a multidisciplinary schedule on a daily and weekly basis to ensure full build completion
Define, plan, and execute integrated subsystem tests in collaboration with subsystem owners
Lead build completion reviews to verify operational readiness and test preparedness
Collaborate with production, test, and engineering teams to improve integration and build processes
Author work instructions for technician teams to support both nominal builds and non-conformance resolution
Lead root cause analyses and implement corrective actions during integration and build
Drive strategies for hardware upgrades, replacements, and integration improvements to maximize uptime
Perform trade studies on build sequencing, hardware prioritization, and resource allocation to influence Helion’s system development approach
Required Skills:
Bachelor’s degree in Engineering or a related field
3+ years of professional experience delivering full-scope engineering projects, including schedule ownership
Demonstrated use of engineering first-principles and structured problem-solving
Hands-on experience across multiple engineering disciplines such as mechanical, electrical, and fluids
Effective technical communication across functional and organizational levels
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will lead cross-subsystem integration and test activities for Helion’s current and future fusion generator prototypes. This is a hands-on, role with broad technical scope and responsibility through build and commissioning phases. You will report to a Mechanical Engineering Lead and play a key role in shaping the execution and culture of a growing engineering team. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Own the integration sequence and day-to-day execution of assembly across generator subsystems, including vacuum systems, electromagnets, high-voltage capacitor systems, controls, diagnostics, and radiation safety\n\n - Develop and manage a multidisciplinary schedule on a daily and weekly basis to ensure full build completion\n\n - Define, plan, and execute integrated subsystem tests in collaboration with subsystem owners\n\n - Lead build completion reviews to verify operational readiness and test preparedness\n\n - Collaborate with production, test, and engineering teams to improve integration and build processes\n\n - Author work instructions for technician teams to support both nominal builds and non-conformance resolution\n\n - Lead root cause analyses and implement corrective actions during integration and build\n\n - Drive strategies for hardware upgrades, replacements, and integration improvements to maximize uptime\n\n - Perform trade studies on build sequencing, hardware prioritization, and resource allocation to influence Helion’s system development approach\n\nRequired Skills:\n\n - Bachelor’s degree in Engineering or a related field\n\n - 3+ years of professional experience delivering full-scope engineering projects, including schedule ownership\n\n - Demonstrated use of engineering first-principles and structured problem-solving\n\n - Hands-on experience across multiple engineering disciplines such as mechanical, electrical, and fluids\n\n - Effective technical communication across functional and organizational levels\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a1969b3f-8e12-4d74-9e0a-840472ffa46d","title":"Senior Manager, Plasma Diagnostics","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-13T00:37:58.223+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a1969b3f-8e12-4d74-9e0a-840472ffa46d","applyUrl":"https://jobs.ashbyhq.com/helion/a1969b3f-8e12-4d74-9e0a-840472ffa46d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are looking for a Senior Manager of Science Diagnostics to manage experimental diagnostics projects and to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Lead a team of scientists and engineers working on various projects and initiatives
Present scientific progress updates during internal meetings and conferences
Create the team roadmap taking into consideration how the physics of different subsystems work together to create a strategic vision
Collaborate with other scientists and engineers in the development and testing of experimental instrumentation and procedures
Drive schedule ownership and optimization by team members to accelerate milestones
Drive design, analysis, and process improvements to increase throughput
Required Skills:
Advanced degree in physics or related physical science discipline
5+ years of scientific research experience with 3+ years managing scientists or engineers in research, development, or technology settings
Knowledge of applied plasma physics with hands-on experience in hardware design and development
Experience leading multidisciplinary teams and managing complex interdepartmental projects, including schedule ownership
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\nWe are looking for a Senior Manager of Science Diagnostics to manage experimental diagnostics projects and to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.\n\nYou Will:\n\n - Lead a team of scientists and engineers working on various projects and initiatives \n\n - Present scientific progress updates during internal meetings and conferences \n\n - Create the team roadmap taking into consideration how the physics of different subsystems work together to create a strategic vision \n\n - Collaborate with other scientists and engineers in the development and testing of experimental instrumentation and procedures \n\n - Drive schedule ownership and optimization by team members to accelerate milestones \n\n - Drive design, analysis, and process improvements to increase throughput \n\nRequired Skills:\n\n - Advanced degree in physics or related physical science discipline\n\n - 5+ years of scientific research experience with 3+ years managing scientists or engineers in research, development, or technology settings\n\n - Knowledge of applied plasma physics with hands-on experience in hardware design and development\n\n - Experience leading multidisciplinary teams and managing complex interdepartmental projects, including schedule ownership\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"99e6fa04-9412-453a-a350-4b6d6f38aec3","title":"Senior Mechanical Engineer, Modules","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-17T18:44:45.035+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/99e6fa04-9412-453a-a350-4b6d6f38aec3","applyUrl":"https://jobs.ashbyhq.com/helion/99e6fa04-9412-453a-a350-4b6d6f38aec3/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own hardware designs for Helion's fusion generator prototypes. You will be working with mechanical engineers, electrical engineers, manufacturing engineers, and production technicians, to implement and troubleshoot high-voltage and low-voltage hardware architectures for pulsed power capacitor banks that are designed for production at scale. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.
You Will:
Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements
Learn from historical engineering approaches, design novel hardware, and test your solutions
Optimize sub-system and component designs to scale for high volume manufacturing
Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)
Perform analysis with tools like ANSYS and COMSOL Multiphysics, and hold design reviews to gather feedback and iterate to a fully functioning system
Required Skills:
Bachelor's degree in engineering
7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids, thermal)
Experience designing, testing, and launching production hardware at scale
Moderate understanding of engineering physics fundamentals (mechanics of materials, circuits), and the ability to apply those principles to the design of high-voltage and pulsed power hardware
Advanced experience with CAD software (e.g. NX, Solidworks)
Moderate experience with GD&T and generating engineering drawings per ASME Y14.5
Moderate experience with FEA software (e.g. ANSYS, FEMAP, COMSOL)
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will own hardware designs for Helion's fusion generator prototypes. You will be working with mechanical engineers, electrical engineers, manufacturing engineers, and production technicians, to implement and troubleshoot high-voltage and low-voltage hardware architectures for pulsed power capacitor banks that are designed for production at scale. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements\n\n - Learn from historical engineering approaches, design novel hardware, and test your solutions\n\n - Optimize sub-system and component designs to scale for high volume manufacturing\n\n - Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)\n\n - Perform analysis with tools like ANSYS and COMSOL Multiphysics, and hold design reviews to gather feedback and iterate to a fully functioning system\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids, thermal)\n\n - Experience designing, testing, and launching production hardware at scale\n\n - Moderate understanding of engineering physics fundamentals (mechanics of materials, circuits), and the ability to apply those principles to the design of high-voltage and pulsed power hardware\n\n - Advanced experience with CAD software (e.g. NX, Solidworks)\n\n - Moderate experience with GD&T and generating engineering drawings per ASME Y14.5\n\n - Moderate experience with FEA software (e.g. ANSYS, FEMAP, COMSOL)\n\n#LI-Onsite #LI-KL1\n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a54af2f6-88e0-4e42-902b-478ddb658233","title":"Build Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-24T15:24:05.087+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a54af2f6-88e0-4e42-902b-478ddb658233","applyUrl":"https://jobs.ashbyhq.com/helion/a54af2f6-88e0-4e42-902b-478ddb658233/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Build Engineer to drive the execution of first-of-a-kind fusion generator assemblies. You will get to own the manufacturing, assembly, and deployment of subsystems for integrated development testbeds and fusion generators. You will work closely with design engineering and production to ensure manufacturability is represented at every stage of the design process. This is an onsite role located at our Everett, WA office.
You will:
Own the build and assembly definition and execution for generator subsystems - may include large structures, moving mechanical assemblies, power transmission, vacuum systems, electromagnets, high-voltage capacitor systems, low-voltage harnessing, or radiation shielding
Author work instructions for technician teams to support both nominal builds and nonconformance resolution
Design and manufacture tooling to enable efficient assembly and installation of generator subsystems
Collaborate with production, integration, and engineering teams to develop prototypes and manufacturing demonstrators
Drive excellence in configuration management, delivered hardware quality, and pace of execution
Be an expert in the lifecycle of a part, from purchase to final assembly, to continually improve low-volume (<1000 piece parts) build processes
Required Skills:
Bachelor’s degree in engineering or related field
2+ years of professional experience in manufacturing, assembly, or integration of multidisciplinary hardware
Hands-on experience across multiple engineering disciplines such as mechanical, electrical, and fluids
Experience working within CAD software to make models and drawings (e.g. NX, Solidworks)
Demonstrated end-to-end ownership of a build
Effective technical communication across functional and organizational levels
#LI-Onsite
#LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nHelion is hiring a Build Engineer to drive the execution of first-of-a-kind fusion generator assemblies. You will get to own the manufacturing, assembly, and deployment of subsystems for integrated development testbeds and fusion generators. You will work closely with design engineering and production to ensure manufacturability is represented at every stage of the design process. This is an onsite role located at our Everett, WA office.\n\nYou will: \n\n - Own the build and assembly definition and execution for generator subsystems - may include large structures, moving mechanical assemblies, power transmission, vacuum systems, electromagnets, high-voltage capacitor systems, low-voltage harnessing, or radiation shielding\n\n - Author work instructions for technician teams to support both nominal builds and nonconformance resolution\n\n - Design and manufacture tooling to enable efficient assembly and installation of generator subsystems\n\n - Collaborate with production, integration, and engineering teams to develop prototypes and manufacturing demonstrators\n\n - Drive excellence in configuration management, delivered hardware quality, and pace of execution\n\n - Be an expert in the lifecycle of a part, from purchase to final assembly, to continually improve low-volume (<1000 piece parts) build processes\n\nRequired Skills: \n\n - Bachelor’s degree in engineering or related field\n\n - 2+ years of professional experience in manufacturing, assembly, or integration of multidisciplinary hardware\n\n - Hands-on experience across multiple engineering disciplines such as mechanical, electrical, and fluids\n\n - Experience working within CAD software to make models and drawings (e.g. NX, Solidworks)\n\n - Demonstrated end-to-end ownership of a build\n\n - Effective technical communication across functional and organizational levels\n\n \n\n#LI-Onsite\n\n#LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"bb7f7949-acc7-49bd-8de4-d7ef240e41c2","title":"Principal Operations Systems Engineer","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-21T17:43:43.519+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/bb7f7949-acc7-49bd-8de4-d7ef240e41c2","applyUrl":"https://jobs.ashbyhq.com/helion/bb7f7949-acc7-49bd-8de4-d7ef240e41c2/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is building the world's first commercial fusion power plant. Achieving that mission requires operational systems that scale as rapidly as our technology.
As Principal Operations Systems Engineer, you will define how operational systems enable manufacturing execution across material flow, inventory, logistics, production, and shop floor operations. You will work at the intersection of Manufacturing, Supply Chain, Engineering, Factory Automation, and Software Engineering to solve complex operational problems that directly impact Helion's ability to scale. This is an onsite role that reports directly to the Director, Manufacturing Operational Excellence at our Everett, WA office.
You Will:
Design and evolve operational systems that improve manufacturing execution, inventory integrity, material flow, logistics, and production readiness
Translate manufacturing challenges into scalable processes, workflows, and digital capabilities
Continuously evaluate manufacturing operations to identify capability gaps before they become production constraints
Partner with Production, Manufacturing Engineering, Inventory Control, Quality, Supply Chain, Factory Automation, and Software Engineering to deliver scalable, maintainable solutions
Establish standards for operational workflows, data integrity, system implementation, and user experience
Improve operational visibility through meaningful metrics, dashboards, and decision-support tools
Drive continuous improvement by simplifying workflows, improving data quality, reducing manual work, and increasing operational efficiency
Serve as a trusted technical advisor, influencing cross-functional initiatives through expertise, collaboration, and sound engineering judgment
Mentor engineers and promote scalable problem solving and continuous improvement across the organization
Required Skills:
Bachelor's degree in Engineering, Computer Science, Information Systems, Supply Chain, Operations Management, or related technical discipline
12+ years designing, implementing, or improving manufacturing, supply chain, logistics, warehouse, or operational systems
Demonstrated success solving complex operational challenges through process, systems, and technology integration
Strong understanding of manufacturing execution, inventory management, material flow, warehouse operations, and production support
Experience partnering across technical and operational organizations to deliver scalable solutions
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nHelion is building the world's first commercial fusion power plant. Achieving that mission requires operational systems that scale as rapidly as our technology.\n\nAs Principal Operations Systems Engineer, you will define how operational systems enable manufacturing execution across material flow, inventory, logistics, production, and shop floor operations. You will work at the intersection of Manufacturing, Supply Chain, Engineering, Factory Automation, and Software Engineering to solve complex operational problems that directly impact Helion's ability to scale. This is an onsite role that reports directly to the Director, Manufacturing Operational Excellence at our Everett, WA office.\n\n\n\nYou Will:\n\n - Design and evolve operational systems that improve manufacturing execution, inventory integrity, material flow, logistics, and production readiness\n\n - Translate manufacturing challenges into scalable processes, workflows, and digital capabilities\n\n - Continuously evaluate manufacturing operations to identify capability gaps before they become production constraints\n\n - Partner with Production, Manufacturing Engineering, Inventory Control, Quality, Supply Chain, Factory Automation, and Software Engineering to deliver scalable, maintainable solutions\n\n - Establish standards for operational workflows, data integrity, system implementation, and user experience\n\n - Improve operational visibility through meaningful metrics, dashboards, and decision-support tools\n\n - Drive continuous improvement by simplifying workflows, improving data quality, reducing manual work, and increasing operational efficiency\n\n - Serve as a trusted technical advisor, influencing cross-functional initiatives through expertise, collaboration, and sound engineering judgment\n\n - Mentor engineers and promote scalable problem solving and continuous improvement across the organization\n\n\n\nRequired Skills:\n\n - Bachelor's degree in Engineering, Computer Science, Information Systems, Supply Chain, Operations Management, or related technical discipline\n\n - 12+ years designing, implementing, or improving manufacturing, supply chain, logistics, warehouse, or operational systems\n\n - Demonstrated success solving complex operational challenges through process, systems, and technology integration\n\n - Strong understanding of manufacturing execution, inventory management, material flow, warehouse operations, and production support\n\n - Experience partnering across technical and operational organizations to deliver scalable solutions\n\n\n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"8a5133b4-2fa3-4f20-9029-c8dd05c5538d","title":"Principal Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-05T21:45:48.249+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/8a5133b4-2fa3-4f20-9029-c8dd05c5538d","applyUrl":"https://jobs.ashbyhq.com/helion/8a5133b4-2fa3-4f20-9029-c8dd05c5538d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Principal Manufacturing Engineer at Helion, you will define and drive the architecture of our manufacturing systems as we scale from prototype builds to high-volume production. You will own manufacturing system strategy, lead the development of custom equipment and production systems, and serve as a technical authority across Manufacturing, Design, and Production. This role operates in a highly ambiguous, first-of-a-kind environment and requires balancing near-term execution with long-term scalability across future production lines.
This is an onsite role that reports directly to Factory Development Manager at our Everett, WA, office.
You Will:
Define manufacturing system architecture and long-term scalability strategy across production lines and future factory builds
Own and drive large-scale, cross-functional initiatives that shape how Helion designs, builds, and scales manufacturing systems
Lead the development and commissioning of custom, precision manufacturing equipment and integrated production systems
Identify and prioritize high-impact investments across equipment, automation, and factory capabilities to enable step-change improvements in scale
Solve complex, ambiguous manufacturing challenges, making high-leverage technical decisions with company-wide impact
Serve as a technical leader and mentor, influencing engineering direction and elevating execution across teams
Required Skills:
12+ years of experience in manufacturing engineering, automation, or production systems, ideally in complex electromechanical environments
Demonstrated ownership of manufacturing systems or production lines from concept through production ramp at scale
Experience defining systems, processes, or architecture in ambiguous, first-of-a-kind environments
Proven track record of leading large, cross-functional engineering initiatives with broad organizational impact
Strong cross-functional leadership across Design Engineering, Production, Supply Chain, and Facilities
Track record of influencing technical direction and mentoring engineers
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nAs a Principal Manufacturing Engineer at Helion, you will define and drive the architecture of our manufacturing systems as we scale from prototype builds to high-volume production. You will own manufacturing system strategy, lead the development of custom equipment and production systems, and serve as a technical authority across Manufacturing, Design, and Production. This role operates in a highly ambiguous, first-of-a-kind environment and requires balancing near-term execution with long-term scalability across future production lines.\n\nThis is an onsite role that reports directly to Factory Development Manager at our Everett, WA, office.\n\n\n\nYou Will:\n\n - Define manufacturing system architecture and long-term scalability strategy across production lines and future factory builds\n\n - Own and drive large-scale, cross-functional initiatives that shape how Helion designs, builds, and scales manufacturing systems\n\n - Lead the development and commissioning of custom, precision manufacturing equipment and integrated production systems\n\n - Identify and prioritize high-impact investments across equipment, automation, and factory capabilities to enable step-change improvements in scale\n\n - Solve complex, ambiguous manufacturing challenges, making high-leverage technical decisions with company-wide impact\n\n - Serve as a technical leader and mentor, influencing engineering direction and elevating execution across teams\n\n\n\nRequired Skills:\n\n - 12+ years of experience in manufacturing engineering, automation, or production systems, ideally in complex electromechanical environments\n\n - Demonstrated ownership of manufacturing systems or production lines from concept through production ramp at scale\n\n - Experience defining systems, processes, or architecture in ambiguous, first-of-a-kind environments\n\n - Proven track record of leading large, cross-functional engineering initiatives with broad organizational impact\n\n - Strong cross-functional leadership across Design Engineering, Production, Supply Chain, and Facilities\n\n - Track record of influencing technical direction and mentoring engineers\n\n\n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"7c48cf04-62db-4cb8-9b7e-c23f267f45c1","title":"Software Engineer, Plant Control","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-03T23:44:46.538+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/7c48cf04-62db-4cb8-9b7e-c23f267f45c1","applyUrl":"https://jobs.ashbyhq.com/helion/7c48cf04-62db-4cb8-9b7e-c23f267f45c1/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
As a Software Engineer on the Plant Control team, you will help design, build, and scale the software systems that operate Helion’s fusion generators and the Orion fusion power plant. You will work across control systems, diagnostics, data infrastructure, operator interfaces, automation, and integration with electrical, mechanical, firmware, and science teams.
This is a generalist software role for someone who is comfortable moving between architecture and implementation, prototypes and production systems, and high-level plant design and hands-on machine operation. You will build software that interfaces with real hardware, supports rapid engineering iteration, and helps turn experimental fusion systems into reliable power plant infrastructure.
You will work onsite at our Everett, WA office.
Design, build, and maintain software for plant control, diagnostics, automation, and operator workflows
Develop interfaces that connect distributed sensors, actuators, controllers, databases, and visualization tools
Build reliable tools for monitoring machine health, system performance, test execution, and plant operations
Create and improve graphical user interfaces for engineers, operators, and scientists working with fusion machines and testbeds
Implement software that supports real-time control, data acquisition, and system coordination
Work with Electrical Engineering, Firmware, Mechanical Engineering, IT, Operations, and Science teams to integrate software with complex hardware systems
Improve the reliability, usability, and scalability of Helion’s internal control and diagnostic platforms
Investigate and introduce new tools, frameworks, and infrastructure that accelerate engineering development
Apply first-principles thinking to ambiguous technical problems where the right answer is not yet obvious
Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Physics, or a related technical field, or equivalent practical experience
2+ years of professional software engineering experience
Strong programming ability in a systems programming language such as C++, Rust, or similar
Experience with Python or another high-level scripting language
Experience building software that interfaces with hardware, sensors, instruments, control systems, or other real-world systems
Comfortable working in Linux environments
Experience designing maintainable software systems, including testing, version control, debugging, and deployment practices
Ability to work across the full software lifecycle, from requirements gathering and prototyping through production support
Strong systems-level problem-solving skills and ability to debug issues across software, hardware, networks, and data flows
Ability to collaborate closely with engineers and scientists from multiple disciplines
Willingness to work onsite and stay close to the hardware, operators, and users of the systems you build
Experience with distributed control systems, industrial automation, SCADA, PLCs, or machine control
Experience with the V-model of development, including requirements definition, verification, validation, and traceability
Experience with precision timing, synchronization, PTP, or deterministic systems
Experience with embedded Linux, real-time systems, or low-level systems programming
Experience with time-series databases, data pipelines, and visualization tools such as InfluxDB, Grafana, or similar platforms
Experience building operator interfaces, internal engineering tools, dashboards, or data-rich GUIs
Experience with Docker, CI/CD, configuration management, or deployment automation
Experience working in high-energy systems, aerospace, robotics, manufacturing, power systems, scientific instrumentation, or other complex hardware environments
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\n \n\n\nWHAT YOU WILL BE DOING\n\nAs a Software Engineer on the Plant Control team, you will help design, build, and scale the software systems that operate Helion’s fusion generators and the Orion fusion power plant. You will work across control systems, diagnostics, data infrastructure, operator interfaces, automation, and integration with electrical, mechanical, firmware, and science teams.\n\nThis is a generalist software role for someone who is comfortable moving between architecture and implementation, prototypes and production systems, and high-level plant design and hands-on machine operation. You will build software that interfaces with real hardware, supports rapid engineering iteration, and helps turn experimental fusion systems into reliable power plant infrastructure.\n\nYou will work onsite at our Everett, WA office.\n\n\nYOU WILL\n\n - Design, build, and maintain software for plant control, diagnostics, automation, and operator workflows\n\n - Develop interfaces that connect distributed sensors, actuators, controllers, databases, and visualization tools\n\n - Build reliable tools for monitoring machine health, system performance, test execution, and plant operations\n\n - Create and improve graphical user interfaces for engineers, operators, and scientists working with fusion machines and testbeds\n\n - Implement software that supports real-time control, data acquisition, and system coordination\n\n - Work with Electrical Engineering, Firmware, Mechanical Engineering, IT, Operations, and Science teams to integrate software with complex hardware systems\n\n - Improve the reliability, usability, and scalability of Helion’s internal control and diagnostic platforms\n\n - Investigate and introduce new tools, frameworks, and infrastructure that accelerate engineering development\n\n - Apply first-principles thinking to ambiguous technical problems where the right answer is not yet obvious\n\n\nREQUIRED SKILLS\n\n - Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Physics, or a related technical field, or equivalent practical experience\n\n - 2+ years of professional software engineering experience\n\n - Strong programming ability in a systems programming language such as C++, Rust, or similar\n\n - Experience with Python or another high-level scripting language\n\n - Experience building software that interfaces with hardware, sensors, instruments, control systems, or other real-world systems\n\n - Comfortable working in Linux environments\n\n - Experience designing maintainable software systems, including testing, version control, debugging, and deployment practices\n\n - Ability to work across the full software lifecycle, from requirements gathering and prototyping through production support\n\n - Strong systems-level problem-solving skills and ability to debug issues across software, hardware, networks, and data flows\n\n - Ability to collaborate closely with engineers and scientists from multiple disciplines\n\n - Willingness to work onsite and stay close to the hardware, operators, and users of the systems you build\n\n\nDESIRED SKILLS\n\n - Experience with distributed control systems, industrial automation, SCADA, PLCs, or machine control\n\n - Experience with the V-model of development, including requirements definition, verification, validation, and traceability\n\n - Experience with precision timing, synchronization, PTP, or deterministic systems\n\n - Experience with embedded Linux, real-time systems, or low-level systems programming\n\n - Experience with time-series databases, data pipelines, and visualization tools such as InfluxDB, Grafana, or similar platforms\n\n - Experience building operator interfaces, internal engineering tools, dashboards, or data-rich GUIs\n\n - Experience with Docker, CI/CD, configuration management, or deployment automation\n\n - Experience working in high-energy systems, aerospace, robotics, manufacturing, power systems, scientific instrumentation, or other complex hardware environments\n\n#LI-Onsite #LI-KL1\n\n \n\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"71eb8e1f-c424-4671-9b8d-d9ce81887c37","title":"Senior Electrical Engineer, Hardware in the Loop","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-25T20:01:16.318+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/71eb8e1f-c424-4671-9b8d-d9ce81887c37","applyUrl":"https://jobs.ashbyhq.com/helion/71eb8e1f-c424-4671-9b8d-d9ce81887c37/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As an Senior Electrical Engineer focused on Hardware-in-the-Loop (HIL), you will design, build, and automate test platforms that allow us to validate our hardware, firmware, and software together in realistic, integrated environments. You’ll work across disciplines to create regression tests that exercise real hardware through power supplies, function generators, source meters, and other lab equipment—catching integration issues before they reach the machine. You’ll own the development of HIL testbeds and infrastructure, enabling system-level acceptance and qualification campaigns. By combining hands-on lab work with automation and data analysis, you’ll accelerate our ability to test complex electrical systems with confidence and repeatability, ensuring the reliability of the fusion machine at scale. You will report to the Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.
You Will:
Design, build, and maintain Hardware-in-the-Loop (HIL) testbeds and supporting infrastructure.
Automate hardware test systems to support regression testing of integrated electrical hardware.
Control and automate lab equipment (power supplies, function generators, source meters, oscilloscopes).
Develop test scripts and frameworks to enable repeatable, automated execution of test campaigns.
Work closely with hardware, firmware, and software engineers to define test requirements and integrate HIL setups into development workflows.
Run acceptance and qualification test campaigns at an integrated system level.
Troubleshoot and debug across hardware, software, and test automation boundaries.
Document testbed architectures, test procedures, and results for traceability and knowledge sharing.
Required Skills:
Bachelor’s degree in Electrical Engineering, Electrical Engineering Technology, Computer Engineering, or related field.
Strong programming experience in Python, including test automation frameworks.
Experience using PyVISA or similar libraries to control lab instrumentation.
Hands-on experience with lab equipment: power supplies, function generators, oscilloscopes, source meters, etc.
Familiarity with unit testing frameworks and automated regression testing.
Linux experience for development, scripting, and test environment management.
Strong troubleshooting and problem-solving skills across hardware/software boundaries.
Ability to collaborate closely with cross-disciplinary engineering teams.
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs an Senior Electrical Engineer focused on Hardware-in-the-Loop (HIL), you will design, build, and automate test platforms that allow us to validate our hardware, firmware, and software together in realistic, integrated environments. You’ll work across disciplines to create regression tests that exercise real hardware through power supplies, function generators, source meters, and other lab equipment—catching integration issues before they reach the machine. You’ll own the development of HIL testbeds and infrastructure, enabling system-level acceptance and qualification campaigns. By combining hands-on lab work with automation and data analysis, you’ll accelerate our ability to test complex electrical systems with confidence and repeatability, ensuring the reliability of the fusion machine at scale. You will report to the Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n \n\n - Design, build, and maintain Hardware-in-the-Loop (HIL) testbeds and supporting infrastructure.\n\n - Automate hardware test systems to support regression testing of integrated electrical hardware.\n\n - Control and automate lab equipment (power supplies, function generators, source meters, oscilloscopes).\n\n - Develop test scripts and frameworks to enable repeatable, automated execution of test campaigns.\n\n - Work closely with hardware, firmware, and software engineers to define test requirements and integrate HIL setups into development workflows.\n\n - Run acceptance and qualification test campaigns at an integrated system level.\n\n - Troubleshoot and debug across hardware, software, and test automation boundaries.\n\n - Document testbed architectures, test procedures, and results for traceability and knowledge sharing.\n\n \n\nRequired Skills:\n\n \n\n - Bachelor’s degree in Electrical Engineering, Electrical Engineering Technology, Computer Engineering, or related field.\n\n - Strong programming experience in Python, including test automation frameworks.\n\n - Experience using PyVISA or similar libraries to control lab instrumentation.\n\n - Hands-on experience with lab equipment: power supplies, function generators, oscilloscopes, source meters, etc.\n\n - Familiarity with unit testing frameworks and automated regression testing.\n\n - Linux experience for development, scripting, and test environment management.\n\n - Strong troubleshooting and problem-solving skills across hardware/software boundaries.\n\n - Ability to collaborate closely with cross-disciplinary engineering teams.\n\n \n\n#LI-Onsite #LI-KL1\n\n \n\n \n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"237a3a65-81e5-4122-82da-bc03a2699c86","title":"Senior Software Engineer, Cybersecurity","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-26T02:22:50.730+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/237a3a65-81e5-4122-82da-bc03a2699c86","applyUrl":"https://jobs.ashbyhq.com/helion/237a3a65-81e5-4122-82da-bc03a2699c86/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Cybersecurity Software Engineer focused on product security, you will ensure that the firmware, software, and server infrastructure driving our fusion machines are resilient against attack. You’ll work closely with firmware, software, and infrastructure engineers to embed security into every stage of the development lifecycle—reviewing designs, auditing code and dependencies, and integrating security checks into CI/CD pipelines. You’ll lead initiatives in encryption, secrets management, and secure authentication to protect sensitive machine operations. Beyond building defenses, you’ll champion security best practices across the organization, providing both the tools and the guidance to enable engineers to move quickly without sacrificing safety. This role is ideal for someone who wants to blend deep cybersecurity expertise with hands-on engineering to safeguard one of the most advanced energy technologies being built today. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.
You Will:
Review firmware, software, and infrastructure designs to identify and mitigate security risks before implementation
Advocate for and implement security best practices across engineering, such as encryption, key rotation, and secure authentication
Deploy and manage application security tools (e.g., Snyk, Trivy, Docker image scanners) to audit dependencies, supply chain risks, and vulnerabilities
Own the definition and enforcement of product-level secrets management and credential handling
Lead initiatives in software and firmware hardening for production systems, ensuring resilience against potential adversarial attacks
Work with firmware, software, and infrastructure engineers to embed security into CI/CD pipelines and development workflows
Create and maintain internal guidelines for secure coding practices and data classification
Contribute to building institutional trust by ensuring our software and firmware meet high standards of security, reliability, and compliance
Serve as the voice of product security in design reviews, code reviews, and cross-functional engineering efforts
Required Skills:
Strong Linux systems knowledge, including security hardening and permissions management
Proficiency with Git-based workflows and secure software delivery practices
Solid understanding of modern encryption standards (TLS, AES, RSA, ECC) and key management practices
Hands-on experience with security engineering tools (SAST/DAST, dependency scanning, Docker/Kubernetes security, supply chain auditing)
Experience conducting secure code reviews and identifying common vulnerabilities
Strong programming background in at least two of: C++, Rust, Python, Typescript, or Java
Familiarity with vulnerability assessment and mitigation strategies across firmware, software, and server environments
Ability to work collaboratively with multi-disciplinary engineering teams and advocate for security without blocking progress
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs a Cybersecurity Software Engineer focused on product security, you will ensure that the firmware, software, and server infrastructure driving our fusion machines are resilient against attack. You’ll work closely with firmware, software, and infrastructure engineers to embed security into every stage of the development lifecycle—reviewing designs, auditing code and dependencies, and integrating security checks into CI/CD pipelines. You’ll lead initiatives in encryption, secrets management, and secure authentication to protect sensitive machine operations. Beyond building defenses, you’ll champion security best practices across the organization, providing both the tools and the guidance to enable engineers to move quickly without sacrificing safety. This role is ideal for someone who wants to blend deep cybersecurity expertise with hands-on engineering to safeguard one of the most advanced energy technologies being built today. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.\n\nYou Will:\n\n - Review firmware, software, and infrastructure designs to identify and mitigate security risks before implementation\n\n - Advocate for and implement security best practices across engineering, such as encryption, key rotation, and secure authentication\n\n - Deploy and manage application security tools (e.g., Snyk, Trivy, Docker image scanners) to audit dependencies, supply chain risks, and vulnerabilities\n\n - Own the definition and enforcement of product-level secrets management and credential handling\n\n - Lead initiatives in software and firmware hardening for production systems, ensuring resilience against potential adversarial attacks\n\n - Work with firmware, software, and infrastructure engineers to embed security into CI/CD pipelines and development workflows\n\n - Create and maintain internal guidelines for secure coding practices and data classification\n\n - Contribute to building institutional trust by ensuring our software and firmware meet high standards of security, reliability, and compliance\n\n - Serve as the voice of product security in design reviews, code reviews, and cross-functional engineering efforts\n\nRequired Skills:\n\n - Strong Linux systems knowledge, including security hardening and permissions management\n\n - Proficiency with Git-based workflows and secure software delivery practices\n\n - Solid understanding of modern encryption standards (TLS, AES, RSA, ECC) and key management practices\n\n - Hands-on experience with security engineering tools (SAST/DAST, dependency scanning, Docker/Kubernetes security, supply chain auditing)\n\n - Experience conducting secure code reviews and identifying common vulnerabilities\n\n - Strong programming background in at least two of: C++, Rust, Python, Typescript, or Java\n\n - Familiarity with vulnerability assessment and mitigation strategies across firmware, software, and server environments\n\n - Ability to work collaboratively with multi-disciplinary engineering teams and advocate for security without blocking progress\n\n#LI-Onsite #LI-KL1\n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"4f0b0e62-cdd6-4f66-803b-c2d8ee3703c0","title":"Power Electronics Engineer","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-26T19:24:54.850+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4f0b0e62-cdd6-4f66-803b-c2d8ee3703c0","applyUrl":"https://jobs.ashbyhq.com/helion/4f0b0e62-cdd6-4f66-803b-c2d8ee3703c0/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments.
We look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You’ll focus on the areas where your strengths drive the most impact today, while gaining hands-on opportunities to grow into expanded scopes and solve system-level challenges.
Focus Areas:
High Voltage/Pulsed Power Systems
Design, test, troubleshoot, support, and scale high-voltage systems for driving pulsed magnetic coils (1<ms) at currents up to 5MA and voltage up to 40kV
Evaluate and apply solid-state switching devices (IGBTs, MOSFETs, SCRs/thyristors) with attention to losses, protection, di/dt, dv/dt, and thermal performance
Specify and integrate high energy components (capacitors, switches, pulse forming networks, buswork, protection, grounding)
Power Electronics
Design, test, scale, and integrate DC/DC, AC/DC, DC/AC converters used for energy delivery, energy recovery, and distribution ranging from hundreds of volts to thousands of volts
Develop switching-stage designs including half/full bridges, phase-shifted/full-bridge, LLC/series-resonant, or buck/boost-derived converters (topology selection based on efficiency, controllability, and fault behavior)
Low Voltage Control and Diagnostics
Design low voltage control electronics and PCBAs that interface with high energy systems
Own schematic capture and support layout, help scale PCBA deliveries to tens of thousands of boards
Build analog front ends for current/voltage/field/temp and other diagnostics: amplification, filtering, isolation, ADC interfacing
Ensure measurement integrity in high EMI environments (noise mitigation, grounding, shielding, calibration strategies)
Partner with firmware/software teams on acquisition requirements and data quality
Required Skills:
2+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
Bachelor’s or Master’s level degree in Electrical Engineering, Physics, or a related technical field
Demonstrated strength in at least one of the focus areas above
Hands-on troubleshooting ability with standard lab equipment (oscilloscope, DMM, power supplies, loads, function/pulse generators, etc)
Comfortable working in high-energy or electrically noisy environments with strong safety mindset and disciplined documentation
Experience with Microsoft Suite, LTSpice, SIMetrix/SIMPLIS, Simulink, Python, and/or MATLAB
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\nYou will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments.\n\nWe look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You’ll focus on the areas where your strengths drive the most impact today, while gaining hands-on opportunities to grow into expanded scopes and solve system-level challenges.\n\nFocus Areas:\n\n 1. High Voltage/Pulsed Power Systems\n \n - Design, test, troubleshoot, support, and scale high-voltage systems for driving pulsed magnetic coils (1We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Principal Electrical Engineer at Helion, you will be at the forefront of designing, implementing, and operating advanced RF circuits and diagnostic systems for Helion’s fusion generators. You will integrate plasma science with high-power electrical engineering to deliver reliable, scalable, and high-fidelity plasma and energy system measurements that directly inform performance optimization, generator commissioning, and future device development. You will work across physics, controls, machine operations, and engineering disciplines to ensure instrumentation, diagnostics, and electrical subsystems meet stringent experimental and operational requirements. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Lead the end-to-end design, deployment, calibration, and operation of RF and plasma systems, ensuring robust instrumentation that meets experimental and operational performance needs.
Design, test, and troubleshoot high-voltage electrical systems including power delivery to pulsed magnets, energy recovery circuits, and internal power networks used during pulsed generator operation.
Develop and integrate electrical measurement hardware (e.g., probes, magnetic coils, high-speed digitizers, sensor networks) into diagnostic platforms that capture key plasma and power system behaviors.
Collaborate with plasma physicists, electrical engineers, controls engineers, and data scientists to align diagnostic capabilities with live experimental needs and long-term scientific and engineering milestones.
Own the assembly, installation, and commissioning of diagnostic and electrical subsystems across multiple test campaigns, ensuring high data fidelity and compliance with safety and operational standards.
Analyze real-time and post-shot electrical and diagnostic data to extract actionable insights, driving performance improvement and design iteration for both hardware and diagnostics.
Guide the development of high-throughput experimental workflows, instrumentation architecture, and internal methodologies that scale with generator performance and facility growth.
Provide technical leadership in strategic planning and cross-functional roadmap discussions that shape the future of Helion’s fusion experimentation and electrical systems architecture.
Mentor junior scientists and engineers, driving excellent engineering practices, documentation standards, and experimental rigor.
Required Skills:
Advanced degree (Ph.D. preferred) in Electrical Engineering, Physics, Plasma Science, or a closely related discipline with significant hands-on experimental experience.
10+ years of advanced laboratory and experimental engineering experience, including design and deployment of RF systems and high-voltage measurement hardware in plasma, fusion, or comparable environments.
Deep experience in high-voltage electrical systems, including design, test, troubleshooting, and commissioning of pulsed systems and power electronics.
Demonstrated subject matter expertise with the ability to operate independently, lead cross-disciplinary technical efforts, and provide technical mentorship.
Strong collaboration, communication, and leadership capability to drive work with engineers, scientists, and technical teams.
#LI-Onsite #LI-TG1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing: \n\nAs a Principal Electrical Engineer at Helion, you will be at the forefront of designing, implementing, and operating advanced RF circuits and diagnostic systems for Helion’s fusion generators. You will integrate plasma science with high-power electrical engineering to deliver reliable, scalable, and high-fidelity plasma and energy system measurements that directly inform performance optimization, generator commissioning, and future device development. You will work across physics, controls, machine operations, and engineering disciplines to ensure instrumentation, diagnostics, and electrical subsystems meet stringent experimental and operational requirements. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office. \n\nYou Will: \n\n - Lead the end-to-end design, deployment, calibration, and operation of RF and plasma systems, ensuring robust instrumentation that meets experimental and operational performance needs. \n\n - Design, test, and troubleshoot high-voltage electrical systems including power delivery to pulsed magnets, energy recovery circuits, and internal power networks used during pulsed generator operation. \n\n - Develop and integrate electrical measurement hardware (e.g., probes, magnetic coils, high-speed digitizers, sensor networks) into diagnostic platforms that capture key plasma and power system behaviors. \n\n - Collaborate with plasma physicists, electrical engineers, controls engineers, and data scientists to align diagnostic capabilities with live experimental needs and long-term scientific and engineering milestones. \n\n - Own the assembly, installation, and commissioning of diagnostic and electrical subsystems across multiple test campaigns, ensuring high data fidelity and compliance with safety and operational standards. \n\n - Analyze real-time and post-shot electrical and diagnostic data to extract actionable insights, driving performance improvement and design iteration for both hardware and diagnostics. \n\n - Guide the development of high-throughput experimental workflows, instrumentation architecture, and internal methodologies that scale with generator performance and facility growth. \n\n - Provide technical leadership in strategic planning and cross-functional roadmap discussions that shape the future of Helion’s fusion experimentation and electrical systems architecture. \n\n - Mentor junior scientists and engineers, driving excellent engineering practices, documentation standards, and experimental rigor. \n\nRequired Skills: \n\n - Advanced degree (Ph.D. preferred) in Electrical Engineering, Physics, Plasma Science, or a closely related discipline with significant hands-on experimental experience. \n\n - 10+ years of advanced laboratory and experimental engineering experience, including design and deployment of RF systems and high-voltage measurement hardware in plasma, fusion, or comparable environments. \n\n - Deep experience in high-voltage electrical systems, including design, test, troubleshooting, and commissioning of pulsed systems and power electronics. \n\n - Demonstrated subject matter expertise with the ability to operate independently, lead cross-disciplinary technical efforts, and provide technical mentorship. \n\n - Strong collaboration, communication, and leadership capability to drive work with engineers, scientists, and technical teams. \n\n#LI-Onsite #LI-TG1\n\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"dd981d5d-f9ad-432b-ae48-f408ba60a45f","title":"Senior Engineering Technician, Electrical Engineering","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-10T23:02:23.176+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/dd981d5d-f9ad-432b-ae48-f408ba60a45f","applyUrl":"https://jobs.ashbyhq.com/helion/dd981d5d-f9ad-432b-ae48-f408ba60a45f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Senior Engineering Technician at Helion, you will lead the build, integration, and troubleshooting of complex electromechanical systems that support our fusion generators and pulsed power architecture. You will drive execution across system builds while independently diagnosing issues and ensuring hardware meets performance, safety, and quality expectations.
You will operate at the interface of design engineering and production, translating evolving designs into executable builds by developing processes, tooling, and work instructions. Your work enables rapid hardware iteration, improves first-pass yield, and establishes repeatable, scalable build practices.
You will also elevate team capability by mentoring technicians, driving troubleshooting rigor, and reinforcing high standards of execution.
This is a hands-on role reporting to the Production Supervisor and working closely with Design Engineers, Test Engineers, and Production leadership. This is an onsite role located at our Everett, WA office.
You Will:
Lead assembly, integration, and bring-up of complex electromechanical systems, including full-system builds
Independently diagnose electrical, mechanical, and system-level failures using schematics, instrumentation, and structured troubleshooting methods
Develop and standardize work instructions, build processes, and test procedures for repeatable execution
Partner closely with engineers during prototype development, supporting rapid iteration and real-time design changes
Design and fabricate fixtures, jigs, and test setups to improve build quality and efficiency
Drive root cause analysis on failures, implement corrective actions, and reduce recurrence of failures
Mentor technicians on troubleshooting, execution standards, and safe operating practices
Identify gaps and inefficiencies in build and test workflows and drive improvements
Uphold safety, quality, and execution standards in high-voltage and high-energy environments
Required Skills:
5+ years hands-on experience building, integrating, and troubleshooting electrical or electromechanical systems
Strong diagnostic capability using schematics, instrumentation, and signal tracing
Proficiency with lab instrumentation (oscilloscopes, power supplies, DAQ, etc.)
Experience working in prototype, R&D, or high-mix production environments
Ability to interpret and apply complex technical documentation at the bench
Demonstrated leadership in execution, including mentoring technicians or leading builds
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs a Senior Engineering Technician at Helion, you will lead the build, integration, and troubleshooting of complex electromechanical systems that support our fusion generators and pulsed power architecture. You will drive execution across system builds while independently diagnosing issues and ensuring hardware meets performance, safety, and quality expectations.\n\nYou will operate at the interface of design engineering and production, translating evolving designs into executable builds by developing processes, tooling, and work instructions. Your work enables rapid hardware iteration, improves first-pass yield, and establishes repeatable, scalable build practices.\n\nYou will also elevate team capability by mentoring technicians, driving troubleshooting rigor, and reinforcing high standards of execution.\n\nThis is a hands-on role reporting to the Production Supervisor and working closely with Design Engineers, Test Engineers, and Production leadership. This is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Lead assembly, integration, and bring-up of complex electromechanical systems, including full-system builds\n\n - Independently diagnose electrical, mechanical, and system-level failures using schematics, instrumentation, and structured troubleshooting methods\n\n - Develop and standardize work instructions, build processes, and test procedures for repeatable execution\n\n - Partner closely with engineers during prototype development, supporting rapid iteration and real-time design changes\n\n - Design and fabricate fixtures, jigs, and test setups to improve build quality and efficiency\n\n - Drive root cause analysis on failures, implement corrective actions, and reduce recurrence of failures\n\n - Mentor technicians on troubleshooting, execution standards, and safe operating practices\n\n - Identify gaps and inefficiencies in build and test workflows and drive improvements\n\n - Uphold safety, quality, and execution standards in high-voltage and high-energy environments\n\nRequired Skills:\n\n - 5+ years hands-on experience building, integrating, and troubleshooting electrical or electromechanical systems\n\n - Strong diagnostic capability using schematics, instrumentation, and signal tracing\n\n - Proficiency with lab instrumentation (oscilloscopes, power supplies, DAQ, etc.)\n\n - Experience working in prototype, R&D, or high-mix production environments\n\n - Ability to interpret and apply complex technical documentation at the bench\n\n - Demonstrated leadership in execution, including mentoring technicians or leading builds\n\n#LI-Onsite\n\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"e8e70c75-ebb7-4c93-8b9d-b0cf076a293d","title":"Capacitor R&D Supervisor ","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-04T23:18:15.822+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e8e70c75-ebb7-4c93-8b9d-b0cf076a293d","applyUrl":"https://jobs.ashbyhq.com/helion/e8e70c75-ebb7-4c93-8b9d-b0cf076a293d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
This is a newly created role driven by rapid growth and increasing R&D demand. It’s a unique opportunity to join at a pivotal moment, helping shape how capacitor technologies scale from development into manufacturing while building the systems, teams, and processes that will define future success. You will lead the execution of capacitor R&D builds and pilot manufacturing, translating evolving engineering concepts into safe, repeatable processes. In this role, you will serve as a critical bridge between R&D and production, identifying manufacturability risks early, driving process improvements, and ensuring new technologies are ready to scale.
This role will provide leadership and operational oversight for a growing team of Engineering Technicians supporting first-shift manufacturing and R&D activities (Monday - Friday, 6:00 AM - 2:30 PM).
You Will
Responsible for R&D builds, prototypes, and pilot runs to meet aggressive development timelines
Translate engineering intent into practical, high-quality manufacturing processes
Make real-time technical decisions in fast-paced, ambiguous development environments
Analyze data to identify process gaps, risks, and opportunities for improvement
Lead and develop a team of Engineering Technicians, building capability and accountability
Partner with engineering, production, and EHS to ensure aligned, safe, and effective execution
Drive readiness for manufacturing through documentation, process definition, and knowledge transfer
Required Skills
5+ years in manufacturing, R&D, or technical operations, including hands-on process development or NPI
2+ years leading or supervising technical teams in fast-paced environments
Proven ability to troubleshoot and improve manufacturing processes under ambiguity
Strong data-driven mindset with the ability to translate results into actionable improvements
Experience working closely with engineering teams on early stage or rapidly evolving technologies
Ability to adapt schedule and onsite presence to support team leadership, cross-functional coordination, and critical development activities
Strong communication, organization, and execution skills
#LI-Onsite
#LI-TS1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing\nThis is a newly created role driven by rapid growth and increasing R&D demand. It’s a unique opportunity to join at a pivotal moment, helping shape how capacitor technologies scale from development into manufacturing while building the systems, teams, and processes that will define future success. You will lead the execution of capacitor R&D builds and pilot manufacturing, translating evolving engineering concepts into safe, repeatable processes. In this role, you will serve as a critical bridge between R&D and production, identifying manufacturability risks early, driving process improvements, and ensuring new technologies are ready to scale.\n\nThis role will provide leadership and operational oversight for a growing team of Engineering Technicians supporting first-shift manufacturing and R&D activities (Monday - Friday, 6:00 AM - 2:30 PM).\n\nYou Will\n\n - Responsible for R&D builds, prototypes, and pilot runs to meet aggressive development timelines\n\n - Translate engineering intent into practical, high-quality manufacturing processes\n\n - Make real-time technical decisions in fast-paced, ambiguous development environments\n\n - Analyze data to identify process gaps, risks, and opportunities for improvement\n\n - Lead and develop a team of Engineering Technicians, building capability and accountability\n\n - Partner with engineering, production, and EHS to ensure aligned, safe, and effective execution\n\n - Drive readiness for manufacturing through documentation, process definition, and knowledge transfer\n\nRequired Skills\n\n - 5+ years in manufacturing, R&D, or technical operations, including hands-on process development or NPI\n\n - 2+ years leading or supervising technical teams in fast-paced environments\n\n - Proven ability to troubleshoot and improve manufacturing processes under ambiguity\n\n - Strong data-driven mindset with the ability to translate results into actionable improvements\n\n - Experience working closely with engineering teams on early stage or rapidly evolving technologies\n\n - Ability to adapt schedule and onsite presence to support team leadership, cross-functional coordination, and critical development activities\n\n - Strong communication, organization, and execution skills\n\n#LI-Onsite\n\n#LI-TS1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"967ff349-0e5e-4431-993d-136026d71239","title":"Mechanical Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-04T23:44:39.457+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/967ff349-0e5e-4431-993d-136026d71239","applyUrl":"https://jobs.ashbyhq.com/helion/967ff349-0e5e-4431-993d-136026d71239/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own the design and development of hardware for Helion’s fusion devices. In this role, you will solve complex, multidisciplinary engineering problems critical to deploying fusion energy at scale. You will collaborate closely with engineers and technicians while contributing to the culture and growth of a fast-moving team. This is an onsite role located at our Everett, WA office.
You Will:
Own and improve subsystem designs including electromagnetic, structural, fluid, thermal, and control systems
Learn from historical engineering approaches and design novel hardware for testing and integration into Helion’s fusion devices
Design hardware in CAD software such as NX or SolidWorks
Perform analysis using tools like ANSYS and lead design reviews to incorporate feedback and iterate toward functioning systems
Expand your engineering skills and domain knowledge by learning from experts
Work hands-on with experienced technicians to build and implement hardware designs
Troubleshoot hardware issues on integrated fusion generators as they arise
Required Skills:
Bachelor’s degree in Engineering
3+ years of professional experience delivering full-scope engineering projects, including schedule ownership
Experience applying first-principles and method-based thinking to solve technical problems
Hands-on exposure to multiple engineering disciplines including mechanical, electrical, and fluids
Advanced experience with CAD software (e.g., NX, SolidWorks)
Experience with FEA software (e.g., ANSYS, FEMAP)
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own the design and development of hardware for Helion’s fusion devices. In this role, you will solve complex, multidisciplinary engineering problems critical to deploying fusion energy at scale. You will collaborate closely with engineers and technicians while contributing to the culture and growth of a fast-moving team. This is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Own and improve subsystem designs including electromagnetic, structural, fluid, thermal, and control systems\n\n - Learn from historical engineering approaches and design novel hardware for testing and integration into Helion’s fusion devices\n\n - Design hardware in CAD software such as NX or SolidWorks\n\n - Perform analysis using tools like ANSYS and lead design reviews to incorporate feedback and iterate toward functioning systems\n\n - Expand your engineering skills and domain knowledge by learning from experts\n\n - Work hands-on with experienced technicians to build and implement hardware designs\n\n - Troubleshoot hardware issues on integrated fusion generators as they arise\n\nRequired Skills:\n\n - Bachelor’s degree in Engineering\n\n - 3+ years of professional experience delivering full-scope engineering projects, including schedule ownership\n\n - Experience applying first-principles and method-based thinking to solve technical problems\n\n - Hands-on exposure to multiple engineering disciplines including mechanical, electrical, and fluids\n\n - Advanced experience with CAD software (e.g., NX, SolidWorks)\n\n - Experience with FEA software (e.g., ANSYS, FEMAP)\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"ad92a1bb-cc5e-462e-b41e-4fda4ac48a21","title":"Senior Multiphysics Modeling Engineer","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-11T00:48:50.346+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/ad92a1bb-cc5e-462e-b41e-4fda4ac48a21","applyUrl":"https://jobs.ashbyhq.com/helion/ad92a1bb-cc5e-462e-b41e-4fda4ac48a21/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are seeking a Senior Multiphysics Modeling Engineer to develop and validate coupled thermal–mechanical–fluid models for Helion's fusion hardware. You will bridge simulation and experimental data to inform material selection, component design, and operating limits in one of the most demanding engineered environments in the world.
This role is highly cross-functional, partnering with materials scientists, test engineers, and mechanical designers to ensure modeling directly drives hardware decisions. You will report to our Materials Manager, onsite in Everett, WA.
You Will:
Develop and maintain multiphysics models (primarily in MOOSE) for high-temperature ceramic and metallic components, plasma- and power-facing structures, and pulsed-load systems.
Simulate coupled thermal, structural, and electromagnetic behavior under rapid cyclic loading, high heat flux, and large temperature gradients, and implement and calibrate constitutive models for fatigue-dominated damage, fracture, and other relevant degradation mechanisms in extreme environments.
Execute rigorous verification and validation (V&V) by performing convergence studies, co-designing calibration and validation experiments with materials and test engineers, and systematically comparing model predictions to experimental results to quantify discrepancies and refine models, properties, and test plans to close the simulation–experiment gap.
Apply uncertainty quantification and sensitivity analysis to support life predictions, design margins, and operating envelope definition.
Translate modeling results into actionable design guidance for materials, joints, components, and inspection strategies.
Use simulation results to help establish material allowables and operating envelopes for high-temperature metallic and ceramic components.
Run large-scale simulations in HPC environments and build reproducible, version-controlled modeling workflows.
Help define a modeling roadmap and standards for key components and failure modes, including expectations for V&V, documentation, and workflow reproducibility as the modeling function grows.
Required Skills:
PhD (or MS with significant experience) in Mechanical Engineering, Nuclear Engineering, Materials Science, Applied Physics, or related field with a computational focus.
5+ years of experience in multiphysics finite element or finite volume modeling of coupled thermal–mechanical systems including experience with irradiated materials modeling and materials in severely degrading environments (e.g., plasma, fusion/fission, high-flux/high-dose environments, etc.)
Proficiency with at least one advanced multiphysics platform (e.g., MOOSE, Abaqus, COMSOL, ANSYS, BISON, OpenMC, MCNP), with willingness to work in MOOSE.
Demonstrated experience with verification and validation against experimental data.
Experience running simulations in HPC environments (parallel computing, job scheduling).
Programming/scripting skills (e.g., Python, C++).
Demonstrated ability to clearly communicate model assumptions, limitations, and uncertainties to non-modelers and to work effectively with cross-functional teams.
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are seeking a Senior Multiphysics Modeling Engineer to develop and validate coupled thermal–mechanical–fluid models for Helion's fusion hardware. You will bridge simulation and experimental data to inform material selection, component design, and operating limits in one of the most demanding engineered environments in the world.\n\nThis role is highly cross-functional, partnering with materials scientists, test engineers, and mechanical designers to ensure modeling directly drives hardware decisions. You will report to our Materials Manager, onsite in Everett, WA.\n\nYou Will:\n\n - Develop and maintain multiphysics models (primarily in MOOSE) for high-temperature ceramic and metallic components, plasma- and power-facing structures, and pulsed-load systems.\n\n - Simulate coupled thermal, structural, and electromagnetic behavior under rapid cyclic loading, high heat flux, and large temperature gradients, and implement and calibrate constitutive models for fatigue-dominated damage, fracture, and other relevant degradation mechanisms in extreme environments.\n\n - Execute rigorous verification and validation (V&V) by performing convergence studies, co-designing calibration and validation experiments with materials and test engineers, and systematically comparing model predictions to experimental results to quantify discrepancies and refine models, properties, and test plans to close the simulation–experiment gap.\n\n - Apply uncertainty quantification and sensitivity analysis to support life predictions, design margins, and operating envelope definition.\n\n - Translate modeling results into actionable design guidance for materials, joints, components, and inspection strategies.\n\n - Use simulation results to help establish material allowables and operating envelopes for high-temperature metallic and ceramic components.\n\n - Run large-scale simulations in HPC environments and build reproducible, version-controlled modeling workflows.\n\n - Help define a modeling roadmap and standards for key components and failure modes, including expectations for V&V, documentation, and workflow reproducibility as the modeling function grows.\n\nRequired Skills:\n\n - PhD (or MS with significant experience) in Mechanical Engineering, Nuclear Engineering, Materials Science, Applied Physics, or related field with a computational focus.\n\n - 5+ years of experience in multiphysics finite element or finite volume modeling of coupled thermal–mechanical systems including experience with irradiated materials modeling and materials in severely degrading environments (e.g., plasma, fusion/fission, high-flux/high-dose environments, etc.)\n\n - Proficiency with at least one advanced multiphysics platform (e.g., MOOSE, Abaqus, COMSOL, ANSYS, BISON, OpenMC, MCNP), with willingness to work in MOOSE.\n\n - Demonstrated experience with verification and validation against experimental data.\n\n - Experience running simulations in HPC environments (parallel computing, job scheduling).\n\n - Programming/scripting skills (e.g., Python, C++).\n\n - Demonstrated ability to clearly communicate model assumptions, limitations, and uncertainties to non-modelers and to work effectively with cross-functional teams.\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"348e3002-542c-4083-93e4-af19f7086b1f","title":"Skillbridge","department":"Research & Development ","team":"Research & Development ","employmentType":"Contract","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-20T20:35:34.421+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/348e3002-542c-4083-93e4-af19f7086b1f","applyUrl":"https://jobs.ashbyhq.com/helion/348e3002-542c-4083-93e4-af19f7086b1f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You’ll work side-by-side with technicians, engineers and scientists to turn ideas into prototypes, prototypes into experiments, and experiments into real systems operating on Polaris and the next generation of Helion fusion machines.
This is a hands-on technical role for people who are interested in solving hard problems and working in a fast-paced environment where each day will bring new challenges and opportunities to build, test, and advance the next generation of fusion energy systems.
You Will:
Gain experience supporting the operation, maintenance, and ongoing development of Polaris and future generations of Helion fusion systems through shadowing and guided participation
Gain exposure to the full life cycle of complex systems—including fabrication, assembly, testing, troubleshooting, deployment, operation, maintenance, and repair—by assisting and learning alongside experienced team members
Learn how to install, align, and maintain high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems, through observation and supervised hands-on experience
Gain experience fabricating one-of-a-kind prototypes, assemblies, fixtures, and instrumentation enclosures while supporting rapid design iterations from engineering concepts
Observe and assist with upgrades, modifications, and reconfiguration of experimental test bays to support evolving research and development work
Required Skills:
Eligible and approved for the DOW Skillbridge program
Strong willingness to learn, take direction, and actively engage in a hands-on environment
Ability to follow safety procedures and work carefully around high-voltage and experimental systems. Experience with tag-out preferred.
Electrical, mechanical, nuclear, or related technical military background
Effective communication skills and ability to work collaboratively on a team
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou’ll work side-by-side with technicians, engineers and scientists to turn ideas into prototypes, prototypes into experiments, and experiments into real systems operating on Polaris and the next generation of Helion fusion machines.\n\nThis is a hands-on technical role for people who are interested in solving hard problems and working in a fast-paced environment where each day will bring new challenges and opportunities to build, test, and advance the next generation of fusion energy systems.\n\n\n\nYou Will:\n\n - Gain experience supporting the operation, maintenance, and ongoing development of Polaris and future generations of Helion fusion systems through shadowing and guided participation\n\n - Gain exposure to the full life cycle of complex systems—including fabrication, assembly, testing, troubleshooting, deployment, operation, maintenance, and repair—by assisting and learning alongside experienced team members\n\n - Learn how to install, align, and maintain high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems, through observation and supervised hands-on experience\n\n - Gain experience fabricating one-of-a-kind prototypes, assemblies, fixtures, and instrumentation enclosures while supporting rapid design iterations from engineering concepts\n\n - Observe and assist with upgrades, modifications, and reconfiguration of experimental test bays to support evolving research and development work\n\nRequired Skills:\n\n - Eligible and approved for the DOW Skillbridge https://skillbridge.osd.mil/faq.htmprogram \n\n - Strong willingness to learn, take direction, and actively engage in a hands-on environment\n\n - Ability to follow safety procedures and work carefully around high-voltage and experimental systems. Experience with tag-out preferred.\n\n - Electrical, mechanical, nuclear, or related technical military background\n\n - Effective communication skills and ability to work collaboratively on a team\n\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"483e8771-3980-486b-b49d-abf0c136090f","title":"Manager, Fusion Test & Operations","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-27T20:44:48.691+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/483e8771-3980-486b-b49d-abf0c136090f","applyUrl":"https://jobs.ashbyhq.com/helion/483e8771-3980-486b-b49d-abf0c136090f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead the development of engineers and scientists that will bring the most powerful, controlled pulsed-fusion device ever constructed online, to generate electrical power. As a leader within the Research and Development team, you will grow and lead a high-performance operating team in the research and development of fusion technology and experiments, control high-energy systems, and design diagnostics for advanced plasma devices. You will report to the Senior R&D Manager, and this is an onsite role located at our Everett, WA office.
You Will:
Grow and mentor a team of multidisciplinary engineers and scientists
Drive schedule ownership and optimization across the team to accelerate milestone achievement
Collaborate with Engineering, Science, and Production teams to derive system requirements and meet program goals
Contribute to the testing and operation of Field-Reversed Configuration (FRC) fusion devices
Lead engineers and scientists in the design and execution of plasma and high-energy experiments
Educate and facilitate work performed by the team on large-scale vacuum systems greater than one meter in diameter
Apply plasma physics concepts to support your team in creating FRCs and implement diagnostics to measure magnetic fields, fusion products, and plasma characteristics
Mentoring Operators in using critical reasoning to evaluate and improve technical solutions
Required Skills:
B.S. with 8+ years of engineering experience, or M.S. with 4+ years of relevant experience in Aerospace, Nuclear Engineering, Mechanical Engineering, Physics, or a related field
1+ years in a technical leadership or management role
Proven ability to mentor engineers and positively impact their career progression
Experience leading multidisciplinary teams with full project ownership
Proven experience designing, building, and operating complex experiments with a focus on diagnostics and continuous improvement
Hands-on experience across multiple engineering disciplines
Ability to apply first-principles thinking to solve complex technical problems
Demonstrated ability to rapidly learn new technologies and take ownership of project areas
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will lead the development of engineers and scientists that will bring the most powerful, controlled pulsed-fusion device ever constructed online, to generate electrical power. As a leader within the Research and Development team, you will grow and lead a high-performance operating team in the research and development of fusion technology and experiments, control high-energy systems, and design diagnostics for advanced plasma devices. You will report to the Senior R&D Manager, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Grow and mentor a team of multidisciplinary engineers and scientists\n\n - Drive schedule ownership and optimization across the team to accelerate milestone achievement\n\n - Collaborate with Engineering, Science, and Production teams to derive system requirements and meet program goals\n\n - Contribute to the testing and operation of Field-Reversed Configuration (FRC) fusion devices\n\n - Lead engineers and scientists in the design and execution of plasma and high-energy experiments\n\n - Educate and facilitate work performed by the team on large-scale vacuum systems greater than one meter in diameter\n\n - Apply plasma physics concepts to support your team in creating FRCs and implement diagnostics to measure magnetic fields, fusion products, and plasma characteristics\n\n - Mentoring Operators in using critical reasoning to evaluate and improve technical solutions\n\nRequired Skills:\n\n - B.S. with 8+ years of engineering experience, or M.S. with 4+ years of relevant experience in Aerospace, Nuclear Engineering, Mechanical Engineering, Physics, or a related field\n\n - 1+ years in a technical leadership or management role\n\n - Proven ability to mentor engineers and positively impact their career progression\n\n - Experience leading multidisciplinary teams with full project ownership\n\n - Proven experience designing, building, and operating complex experiments with a focus on diagnostics and continuous improvement\n\n - Hands-on experience across multiple engineering disciplines\n\n - Ability to apply first-principles thinking to solve complex technical problems\n\n - Demonstrated ability to rapidly learn new technologies and take ownership of project areas\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"6a2e2e50-692e-4696-a986-f0ab14d5eda1","title":"Senior Financial Analyst","department":"Finance","team":"Finance","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-30T18:42:01.477+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/6a2e2e50-692e-4696-a986-f0ab14d5eda1","applyUrl":"https://jobs.ashbyhq.com/helion/6a2e2e50-692e-4696-a986-f0ab14d5eda1/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Do:
This is a newly created role driven by Helion's rapid growth. As a Financial Analyst on the Financial Planning & Analysis (FP&A) team, you will serve as a trusted Finance business partner supporting Business Operations, including teams such as the People Team, IT, Marketing, Security, and Facilities.
You'll own departmental forecasting, budgeting, and financial planning while partnering closely with leaders to help them make informed business decisions. This role goes beyond reporting; you'll have a seat at the table, influencing strategy through financial insights, modeling, and analysis while managing departmental P&Ls and capital expenditures.
This is an onsite role based in Everett, WA, reporting to the Finance Director of FP&A.
You Will:
Partner with leaders across Business Operations (People, IT, Marketing, Facilities, and others) to provide financial guidance, influence decision-making, and support strategic planning.
Own departmental budgets, forecasts, and financial models, providing accurate projections, variance analysis, and actionable business insights.
Develop and enhance financial reporting using cutting-edge AI finance toolsets, and KPI metrics to improve visibility and drive data-informed decisions.
Analyze operating expenses and capital expenditures, identify risks, opportunities, and recommendations to improve business performance.
Leverage Excel, ERP systems (NetSuite or Oracle Fusion or SAP preferred), BI platforms (Power BI, Tableau), and AI tools (ChatGPT, Copilot, Claude, Cohere, etc.) to enhance reporting, improve processes, and support the implementation of new financial technologies.
Required Skills:
4–6 years of experience in FP&A, corporate finance, or financial analysis within technology, manufacturing, robotics, energy, or similar high growth technology environment.
Experience owning budgets, forecasts, financial models, and variance analysis, with a strong understanding of financial statements and planning processes.
Advanced Excel skills with experience working with large datasets; SQL and ERP experience (NetSuite or Oracle Fusion or SAP preferred) are a plus.
Proficiency with BI tools (Power BI, Tableau) and practical experience leveraging AI tools (ChatGPT, Copilot, Claude, Cohere, etc.) to improve financial analysis and reporting.
Strong analytical, communication, and business partnering skills with the ability to translate financial data into actionable insights for technical and non-technical stakeholders.
Bachelor's degree in Finance, Accounting, Economics, Business, or a related field
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Do:\n\nThis is a newly created role driven by Helion's rapid growth. As a Financial Analyst on the Financial Planning & Analysis (FP&A) team, you will serve as a trusted Finance business partner supporting Business Operations, including teams such as the People Team, IT, Marketing, Security, and Facilities.\n\nYou'll own departmental forecasting, budgeting, and financial planning while partnering closely with leaders to help them make informed business decisions. This role goes beyond reporting; you'll have a seat at the table, influencing strategy through financial insights, modeling, and analysis while managing departmental P&Ls and capital expenditures.\n\nThis is an onsite role based in Everett, WA, reporting to the Finance Director of FP&A.\n\nYou Will:\n\n - Partner with leaders across Business Operations (People, IT, Marketing, Facilities, and others) to provide financial guidance, influence decision-making, and support strategic planning.\n\n - Own departmental budgets, forecasts, and financial models, providing accurate projections, variance analysis, and actionable business insights.\n\n - Develop and enhance financial reporting using cutting-edge AI finance toolsets, and KPI metrics to improve visibility and drive data-informed decisions.\n\n - Analyze operating expenses and capital expenditures, identify risks, opportunities, and recommendations to improve business performance.\n\n - Leverage Excel, ERP systems (NetSuite or Oracle Fusion or SAP preferred), BI platforms (Power BI, Tableau), and AI tools (ChatGPT, Copilot, Claude, Cohere, etc.) to enhance reporting, improve processes, and support the implementation of new financial technologies.\n\nRequired Skills:\n\n - 4–6 years of experience in FP&A, corporate finance, or financial analysis within technology, manufacturing, robotics, energy, or similar high growth technology environment.\n\n - Experience owning budgets, forecasts, financial models, and variance analysis, with a strong understanding of financial statements and planning processes.\n\n - Advanced Excel skills with experience working with large datasets; SQL and ERP experience (NetSuite or Oracle Fusion or SAP preferred) are a plus.\n\n - Proficiency with BI tools (Power BI, Tableau) and practical experience leveraging AI tools (ChatGPT, Copilot, Claude, Cohere, etc.) to improve financial analysis and reporting.\n\n - Strong analytical, communication, and business partnering skills with the ability to translate financial data into actionable insights for technical and non-technical stakeholders.\n\n - Bachelor's degree in Finance, Accounting, Economics, Business, or a related field\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"71f44aec-7b3c-4449-a705-9bf55943f689","title":"Senior Data Scientist – Fusion Systems","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-25T21:01:54.830+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/71f44aec-7b3c-4449-a705-9bf55943f689","applyUrl":"https://jobs.ashbyhq.com/helion/71f44aec-7b3c-4449-a705-9bf55943f689/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will be responsible for developing the data and knowledge foundation that enables engineers to understand, operate, and improve Helion’s fusion systems. In this role, you will partner closely with engineers, scientists, and operators to transform complex experimental and operational data (including machine telemetry, experimental results, and engineering workflows) into structured datasets, knowledge systems, and AI-enabled tools that support analysis and decision-making. You will combine data science, knowledge modeling, and applied AI techniques to make fragmented, rapidly evolving information accessible and actionable at scale. This is an onsite role that reports directly to our R&D Manager at our Everett, WA office.
You Will:
Analyze experimental and operational data to identify trends, characterize system performance, and generate actionable insights
Develop data schemas, ontologies, and metadata frameworks to organize and standardize complex technical information
Design and maintain data pipelines that transform and integrate diverse data sources into analytics-ready datasets
Build and evaluate AI-powered workflows, including retrieval, summarization, and anomaly analysis systems using operational data
Prototype decision-support tools for anomaly detection, experiment comparison, and operational reporting
Define metrics and evaluation frameworks to ensure effectiveness, reliability, and business impact of statistical models and AI solutions
Required Skills:
7+ years of experience in data science, statistics, machine learning, or a related quantitative field, especially within a hardware, physics, or engineering environment
Experience working with complex operational, experimental, and time-series data to generate insights, detect anomalies, and inform engineering decisions
Proficiency in Python and modern data science tooling, with experience building data pipelines, analytics infrastructure, or production data systems
Experience developing structured representations of information, including data models, schemas, metadata frameworks, or ontologies
Familiarity with LLM APIs and applied AI techniques such as RAG, embeddings, semantic search, and AI-powered workflow automation
Ability to translate ambiguous problems into practical, scalable solutions and partner effectively with engineers and scientists
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nYou will be responsible for developing the data and knowledge foundation that enables engineers to understand, operate, and improve Helion’s fusion systems. In this role, you will partner closely with engineers, scientists, and operators to transform complex experimental and operational data (including machine telemetry, experimental results, and engineering workflows) into structured datasets, knowledge systems, and AI-enabled tools that support analysis and decision-making. You will combine data science, knowledge modeling, and applied AI techniques to make fragmented, rapidly evolving information accessible and actionable at scale. This is an onsite role that reports directly to our R&D Manager at our Everett, WA office.\n\nYou Will:\n\n - Analyze experimental and operational data to identify trends, characterize system performance, and generate actionable insights\n\n - Develop data schemas, ontologies, and metadata frameworks to organize and standardize complex technical information\n\n - Design and maintain data pipelines that transform and integrate diverse data sources into analytics-ready datasets\n\n - Build and evaluate AI-powered workflows, including retrieval, summarization, and anomaly analysis systems using operational data\n\n - Prototype decision-support tools for anomaly detection, experiment comparison, and operational reporting\n\n - Define metrics and evaluation frameworks to ensure effectiveness, reliability, and business impact of statistical models and AI solutions\n\n\n\nRequired Skills: \n\n - 7+ years of experience in data science, statistics, machine learning, or a related quantitative field, especially within a hardware, physics, or engineering environment\n\n - Experience working with complex operational, experimental, and time-series data to generate insights, detect anomalies, and inform engineering decisions\n\n - Proficiency in Python and modern data science tooling, with experience building data pipelines, analytics infrastructure, or production data systems\n\n - Experience developing structured representations of information, including data models, schemas, metadata frameworks, or ontologies\n\n - Familiarity with LLM APIs and applied AI techniques such as RAG, embeddings, semantic search, and AI-powered workflow automation\n\n - Ability to translate ambiguous problems into practical, scalable solutions and partner effectively with engineers and scientists\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"de3f4ad2-27f1-47b2-98b1-fc8eb492bd45","title":"Senior Materials Chemist","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-07T22:22:44.836+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/de3f4ad2-27f1-47b2-98b1-fc8eb492bd45","applyUrl":"https://jobs.ashbyhq.com/helion/de3f4ad2-27f1-47b2-98b1-fc8eb492bd45/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own the chemistry-driven understanding of how coolants and process fluids interact with materials and components. You will quantify degradation mechanisms, define compatibility limits, and develop practical mitigation strategies that improve system reliability and lifetime.
This role sits at the intersection of chemistry, materials science, and hardware engineering, and directly impacts the performance and durability of Helion's fusion systems. You will report to the Materials Science Manager and this is an onsite role located at our Everett, WA office.
You Will:
Quantify coolant-driven degradation and failure
Design and execute experimental programs to evaluate coolant and fluid impacts on materials, including corrosion, erosion, deposition/retention, polymer swelling/attack, and contamination transport
Develop test conditions that reflect relevant operating environments (temperature, pressure, flow, impurity levels, and cycling)
Develop and validate mitigation strategies
Drive cross-functional integration and execution
Required Skills:
MS or PhD in Chemistry, Materials Chemistry, Corrosion Science, Chemical Engineering, or a related field (or equivalent practical experience)
5+ years of experience in corrosion/electrochemistry, coolant or process fluid chemistry, materials compatibility testing, or degradation and failure analysis in demanding environments
Demonstrated ability to design experiments, analyze multi-variable datasets, and communicate actionable results to engineering teams
#LI-Onsite #LI-TS1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own the chemistry-driven understanding of how coolants and process fluids interact with materials and components. You will quantify degradation mechanisms, define compatibility limits, and develop practical mitigation strategies that improve system reliability and lifetime.\n\nThis role sits at the intersection of chemistry, materials science, and hardware engineering, and directly impacts the performance and durability of Helion's fusion systems. You will report to the Materials Science Manager and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Quantify coolant-driven degradation and failure\n\n - Design and execute experimental programs to evaluate coolant and fluid impacts on materials, including corrosion, erosion, deposition/retention, polymer swelling/attack, and contamination transport\n\n - Develop test conditions that reflect relevant operating environments (temperature, pressure, flow, impurity levels, and cycling)\n\n - Develop and validate mitigation strategies\n\n - Drive cross-functional integration and execution\n\nRequired Skills:\n\n - MS or PhD in Chemistry, Materials Chemistry, Corrosion Science, Chemical Engineering, or a related field (or equivalent practical experience)\n\n - 5+ years of experience in corrosion/electrochemistry, coolant or process fluid chemistry, materials compatibility testing, or degradation and failure analysis in demanding environments\n\n - Demonstrated ability to design experiments, analyze multi-variable datasets, and communicate actionable results to engineering teams\n\n#LI-Onsite #LI-TS1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"5c546f3f-4db4-4f9b-80d4-d2b4e55314ba","title":"Senior Superconductor Engineer","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-12T16:05:44.704+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/5c546f3f-4db4-4f9b-80d4-d2b4e55314ba","applyUrl":"https://jobs.ashbyhq.com/helion/5c546f3f-4db4-4f9b-80d4-d2b4e55314ba/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own the full lifecycle of superconducting hardware—from simulation and design through build, test, and integration—while coordinating across internal teams and external partners to qualify technologies for deployment in Helion's fusion machines. You will report to the Senior Director of Science and this is an onsite role located at our Everett, WA office.
You Will:
Analyze magnetic fields and their coupled effects (e.g., Lorentz forces, thermal loads, structural stress) using tools such as COMSOL and ANSYS
Evaluate mechanical loading and failure modes in high-field superconducting environments
Design, build, test, and iterate superconducting magnet systems in both standalone test stands and integrated fusion machines
Develop experimental plans and diagnostics to validate performance under realistic operating conditions
Analyze the impact of superconducting field configurations and architectures on plasma performance
Collaborate closely with plasma physicists and machine designers to optimize system-level outcomes
Required Skills:
Demonstrated experience delivering a functional superconducting system that has been successfully deployed or operated in a real-world application
Strong background in electromagnetics, superconductivity, and multiphysics modeling
Hands-on experience designing and testing superconducting magnets or related systems
Proficiency with COMSOL, ANSYS, or equivalent simulation tools
Experience working across disciplines including mechanical, electrical, and plasma physics domains
Proven ability to independently drive complex technical projects from concept to execution
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own the full lifecycle of superconducting hardware—from simulation and design through build, test, and integration—while coordinating across internal teams and external partners to qualify technologies for deployment in Helion's fusion machines. You will report to the Senior Director of Science and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Analyze magnetic fields and their coupled effects (e.g., Lorentz forces, thermal loads, structural stress) using tools such as COMSOL and ANSYS\n\n - Evaluate mechanical loading and failure modes in high-field superconducting environments\n\n - Design, build, test, and iterate superconducting magnet systems in both standalone test stands and integrated fusion machines\n\n - Develop experimental plans and diagnostics to validate performance under realistic operating conditions\n\n - Analyze the impact of superconducting field configurations and architectures on plasma performance\n\n - Collaborate closely with plasma physicists and machine designers to optimize system-level outcomes\n\nRequired Skills:\n\n - Demonstrated experience delivering a functional superconducting system that has been successfully deployed or operated in a real-world application\n\n - Strong background in electromagnetics, superconductivity, and multiphysics modeling\n\n - Hands-on experience designing and testing superconducting magnets or related systems\n\n - Proficiency with COMSOL, ANSYS, or equivalent simulation tools\n\n - Experience working across disciplines including mechanical, electrical, and plasma physics domains\n\n - Proven ability to independently drive complex technical projects from concept to execution\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"f1844ffb-0a67-4152-95c1-93ef595fa422","title":"Senior Materials Engineer, Ceramic Fabrication","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-06T16:59:59.364+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/f1844ffb-0a67-4152-95c1-93ef595fa422","applyUrl":"https://jobs.ashbyhq.com/helion/f1844ffb-0a67-4152-95c1-93ef595fa422/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will contribute to the fabrication, scale‑up, and deployment of advanced ceramic and CMC components, taking materials from lab‑scale development through small‑scale prototypes to full‑scale functional hardware designed for extreme fusion environments. You will report to the Manager of Nuclear Ceramics, in this onsite role located at our Everett, WA office.
You Will:
Lead high‑impact, multi‑disciplinary projects focused on ceramic processing, forming, densification, and scale‑up for materials operating under fusion generator conditions, including high neutron radiation.
Drive the translation of ceramic materials from laboratory formulations to prototype parts and full‑scale components, ensuring repeatability, performance, and manufacturability at each stage.
Contribute to the delivery of Helion’s inorganic hardware needs, including plasma containment vessels, electrical insulators, resistive components, and structural ceramics, with hands‑on ownership of fabrication methods.
Serve as the internal ceramics fabrication owner, acting as the “go‑to” person for scalable ceramic processing routes, scale‑up risks, vendor capabilities, and production readiness across the company.
Navigate an environment with technical obstacles and evolving requirements, balancing fabrication risk, schedule, and performance without compromising delivery.
Partner with internal Helion teams, external vendors, national laboratories, and universities to develop scalable ceramic fabrication capabilities, qualify processes and suppliers, and close technical gaps.
Represent Helion in technical discussions, supplier reviews, and conferences related to ceramic processing, prototyping, and scale‑up.
Required Skills:
Demonstrated achievement performing bulk and CMCs ceramic process development and fabrication for a material or component used in a commercial product or integral to a large, single‑unit system (e.g., engines, turbines, reactors, or large pressure vessels).
8+ years of industry experience in ceramics or materials engineering, including delivering projects from lab development through prototype fabrication to full‑scale components, including design reviews.
Proven experience planning and executing ceramic component development efforts guided by milestone schedules, with accountability for hardware delivery.
Hands‑on experience with ceramic powder processing, forming, firing, post‑processing, testing, and characterization.
Experience using ceramic processes to produce large ceramic components and implementation of strategies to reduce scale-up risks.
Desired but not required: experience with radiation‑exposed ceramics or extreme environment testing.
A strong bias for action, with the ability to learn through rapid prototyping, hands‑on fabrication, and iterative scale‑up, executing with urgency in high‑uncertainty environments.
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will contribute to the fabrication, scale‑up, and deployment of advanced ceramic and CMC components, taking materials from lab‑scale development through small‑scale prototypes to full‑scale functional hardware designed for extreme fusion environments. You will report to the Manager of Nuclear Ceramics, in this onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Lead high‑impact, multi‑disciplinary projects focused on ceramic processing, forming, densification, and scale‑up for materials operating under fusion generator conditions, including high neutron radiation.\n\n - Drive the translation of ceramic materials from laboratory formulations to prototype parts and full‑scale components, ensuring repeatability, performance, and manufacturability at each stage.\n\n - Contribute to the delivery of Helion’s inorganic hardware needs, including plasma containment vessels, electrical insulators, resistive components, and structural ceramics, with hands‑on ownership of fabrication methods.\n\n - Serve as the internal ceramics fabrication owner, acting as the “go‑to” person for scalable ceramic processing routes, scale‑up risks, vendor capabilities, and production readiness across the company.\n\n - Navigate an environment with technical obstacles and evolving requirements, balancing fabrication risk, schedule, and performance without compromising delivery.\n\n - Partner with internal Helion teams, external vendors, national laboratories, and universities to develop scalable ceramic fabrication capabilities, qualify processes and suppliers, and close technical gaps.\n\n - Represent Helion in technical discussions, supplier reviews, and conferences related to ceramic processing, prototyping, and scale‑up.\n\nRequired Skills:\n\n - Demonstrated achievement performing bulk and CMCs ceramic process development and fabrication for a material or component used in a commercial product or integral to a large, single‑unit system (e.g., engines, turbines, reactors, or large pressure vessels).\n\n - 8+ years of industry experience in ceramics or materials engineering, including delivering projects from lab development through prototype fabrication to full‑scale components, including design reviews.\n\n - Proven experience planning and executing ceramic component development efforts guided by milestone schedules, with accountability for hardware delivery.\n\n - Hands‑on experience with ceramic powder processing, forming, firing, post‑processing, testing, and characterization.\n\n - Experience using ceramic processes to produce large ceramic components and implementation of strategies to reduce scale-up risks.\n\n - Desired but not required: experience with radiation‑exposed ceramics or extreme environment testing.\n\n - A strong bias for action, with the ability to learn through rapid prototyping, hands‑on fabrication, and iterative scale‑up, executing with urgency in high‑uncertainty environments.\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"1170a020-6c60-4449-86b5-55ea0bbde734","title":"Senior Materials Engineer, Diagnostics","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-08T18:47:58.918+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/1170a020-6c60-4449-86b5-55ea0bbde734","applyUrl":"https://jobs.ashbyhq.com/helion/1170a020-6c60-4449-86b5-55ea0bbde734/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are looking for a Senior Materials Engineer, Diagnostics to lead the development of materials health monitoring for Helion’s fusion generators. You will design, qualify, and deploy in-situ and ex-situ diagnostics to detect and quantify materials degradation under combined stimuli, including thermomechanical stress, radiation, high electric fields, and coolant environments.
You will work cross-functionally with Materials, Research, and Engineering teams to translate failure modes into measurable signals and integrate diagnostics into hardware and predictive models. This onsite role is based in Everett, WA.
You Will:
Develop and deploy in-situ and ex-situ diagnostics for degradation and failure in fusion-relevant materials and components (e.g., first wall, magnets, insulators, capacitors, HV interfaces, seals)
Translate failure and degradation modes into measurable signals using sensors, inspection methods, or indirect indicators
Design and execute coupled-stimuli experiments and post-irradiation examinations (PIE) to validate diagnostic methods
Build test matrices and analysis plans linking microstructural evolution to sensor outputs and component performance
Own the materials diagnostics roadmap by converting risk assessments into diagnostic requirements (what to measure, where, how often, and accuracy)
Collaborate with design engineers to embed diagnostics into hardware and ensure compatibility with system constraints
Partner with modeling teams to integrate diagnostic outputs into predictive models and maintenance strategies
Productize diagnostic methods and sensors for reliable deployment in fusion environments
Document test plans, procedures, and design guidance; communicate results, risks, and recommendations across teams
Required Skills:
BS with 10+ years, or MS/PhD with 5+ years, in Materials Science, Materials Engineering, Applied Physics, Nuclear Engineering, or related field
5+ years (with PhD or MS) or 10+ years (with BS) of experience in at least one of:
Materials diagnostics / NDE / SHM (strain, acoustic, optical, EM, fiberoptic, etc.).
Familiarity with data analysis / feature extraction for degradation detection (Python preferred).
Experience designing and executing coupled-stimuli experiments (e.g., thermomechanical, electrothermal, irradiation with stress)
Experience embedding or integrating sensors into structural materials (ceramics, composites, polymers, or metals)
Preferred Skills:
Experience in fusion, fission, accelerator, or high-radiation environments
Experience with radiation effects and post-irradiation examination (PIE)
Familiarity with high-voltage systems or safety-critical experimental environments
#LI-TM1 #LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are looking for a Senior Materials Engineer, Diagnostics to lead the development of materials health monitoring for Helion’s fusion generators. You will design, qualify, and deploy in-situ and ex-situ diagnostics to detect and quantify materials degradation under combined stimuli, including thermomechanical stress, radiation, high electric fields, and coolant environments.\n\nYou will work cross-functionally with Materials, Research, and Engineering teams to translate failure modes into measurable signals and integrate diagnostics into hardware and predictive models. This onsite role is based in Everett, WA.\n\nYou Will:\n\n - Develop and deploy in-situ and ex-situ diagnostics for degradation and failure in fusion-relevant materials and components (e.g., first wall, magnets, insulators, capacitors, HV interfaces, seals)\n\n - Translate failure and degradation modes into measurable signals using sensors, inspection methods, or indirect indicators\n\n - Design and execute coupled-stimuli experiments and post-irradiation examinations (PIE) to validate diagnostic methods\n\n - Build test matrices and analysis plans linking microstructural evolution to sensor outputs and component performance\n\n - Own the materials diagnostics roadmap by converting risk assessments into diagnostic requirements (what to measure, where, how often, and accuracy)\n\n - Collaborate with design engineers to embed diagnostics into hardware and ensure compatibility with system constraints\n\n - Partner with modeling teams to integrate diagnostic outputs into predictive models and maintenance strategies\n\n - Productize diagnostic methods and sensors for reliable deployment in fusion environments\n\n - Document test plans, procedures, and design guidance; communicate results, risks, and recommendations across teams\n\nRequired Skills:\n\n - BS with 10+ years, or MS/PhD with 5+ years, in Materials Science, Materials Engineering, Applied Physics, Nuclear Engineering, or related field\n\n - 5+ years (with PhD or MS) or 10+ years (with BS) of experience in at least one of:\n \n - Materials diagnostics / NDE / SHM (strain, acoustic, optical, EM, fiberoptic, etc.).\n \n - Familiarity with data analysis / feature extraction for degradation detection (Python preferred).\n\n - Experience designing and executing coupled-stimuli experiments (e.g., thermomechanical, electrothermal, irradiation with stress)\n\n - Experience embedding or integrating sensors into structural materials (ceramics, composites, polymers, or metals)\n\nPreferred Skills:\n\n - Experience in fusion, fission, accelerator, or high-radiation environments\n\n - Experience with radiation effects and post-irradiation examination (PIE)\n\n - Familiarity with high-voltage systems or safety-critical experimental environments\n\n\n\n#LI-TM1 #LI-Onsite \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"9b11de3a-b129-432a-81c2-56dbdf64e5a9","title":"Senior Process Engineer, Fuel Cycle","department":"Fuel Cycle","team":"Fuel Cycle","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-18T21:28:54.672+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/9b11de3a-b129-432a-81c2-56dbdf64e5a9","applyUrl":"https://jobs.ashbyhq.com/helion/9b11de3a-b129-432a-81c2-56dbdf64e5a9/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You’ll Be Doing
You will be at the forefront of designing the world's first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. You will lead process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our commercial fusion platform. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.
You Will
Own creation-to-integration engineering for major components of the fuel cycle, including system process design, procurement, installation, and commissioning
Perform detailed design for process equipment such as columns, reactors, membranes, heaters, pumps, and piping under varied conditions (ambient, cryogenic, and vacuum)
Use process simulation tools to support design development, integration, and case studies
Produce important deliverables including PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations
Independently lead projects across engineering disciplines (mechanical, electrical, controls, and operations) to deliver fully integrated process designs
Lead high-level design reviews to validate solutions and incorporate feedback into systems
Mentor fuel cycle engineers and work cross-functionally to build technical capabilities across Helion
Required Skills
Bachelor's degree in Chemical or Mechanical or equivalent experience in chemical process design or development
8+ years of experience delivering full-scope chemical engineering projects, including managing technical deliverables and schedules
Experience taking engineering ideas from abstract concepts to physical reality, demonstrated by delivering first-of-a-kind hardware solutions
Experience applying first-principles thinking by leading design and troubleshooting in complex engineering systems
Experience performing detailed process equipment sizing calculations including chemical, fluid, thermal, mechanical, and relief systems
Experience leading and working on multidisciplinary engineering projects
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You’ll Be Doing\n\nYou will be at the forefront of designing the world's first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. You will lead process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our commercial fusion platform. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.\n\nYou Will\n\n - Own creation-to-integration engineering for major components of the fuel cycle, including system process design, procurement, installation, and commissioning\n\n - Perform detailed design for process equipment such as columns, reactors, membranes, heaters, pumps, and piping under varied conditions (ambient, cryogenic, and vacuum)\n\n - Use process simulation tools to support design development, integration, and case studies\n\n - Produce important deliverables including PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations\n\n - Independently lead projects across engineering disciplines (mechanical, electrical, controls, and operations) to deliver fully integrated process designs\n\n - Lead high-level design reviews to validate solutions and incorporate feedback into systems\n\n - Mentor fuel cycle engineers and work cross-functionally to build technical capabilities across Helion\n\nRequired Skills\n\n - Bachelor's degree in Chemical or Mechanical or equivalent experience in chemical process design or development\n\n - 8+ years of experience delivering full-scope chemical engineering projects, including managing technical deliverables and schedules\n\n - Experience taking engineering ideas from abstract concepts to physical reality, demonstrated by delivering first-of-a-kind hardware solutions\n\n - Experience applying first-principles thinking by leading design and troubleshooting in complex engineering systems\n\n - Experience performing detailed process equipment sizing calculations including chemical, fluid, thermal, mechanical, and relief systems\n\n - Experience leading and working on multidisciplinary engineering projects\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"411c557c-d386-4cb2-9ecf-1ba94bf30501","title":"Senior Construction Project Engineer","department":"Facilities","team":"Facilities","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-10T21:22:16.198+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/411c557c-d386-4cb2-9ecf-1ba94bf30501","applyUrl":"https://jobs.ashbyhq.com/helion/411c557c-d386-4cb2-9ecf-1ba94bf30501/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Senior Construction Project Engineer at Helion, you will independently drive the technical and administrative execution of complex, fast-paced construction projects that enable the future of fusion energy. Working across diverse trades and project types, you will own the engineering-side workstreams, including take-offs, documentation, procurement coordination, and field execution that keep projects moving. You'll bring sound judgment to ambiguous, day-to-day situations in the field, ensuring projects are executed safely, efficiently, and to the highest quality standards. This is an onsite role at our Everett, WA office, reporting to the Facilities Build Team Leader.
You Will:
Independently own the day-to-day technical execution of assigned construction workstreams, exercising sound judgment to resolve field-level ambiguity and drive work forward with a strong bias for action
Lead core project processes, stakeholder requests, change order documentation, material procurement, and RFIs/submittals, while driving tasks to completion with a high level of accountability
Prepare quantity take-offs and estimating support, and manage day-to-day subcontractor/trade partner coordination and scope tracking
Serve as a key point of daily coordination between internal teams, subcontractors, and suppliers, proactively surfacing risks and blockers with clear context
Own and continuously improve project documentation systems (meeting minutes, progress tracking, logs, closeout packages), ensuring accuracy and audit-readiness
Conduct site walks to monitor progress, quality, and safety compliance in the field
Operate independently in a dynamic environment with shifting priorities, upholding Helion's safety culture, and helping guide junior team members on field execution and documentation standards
Required Skills:
4+ years of experience independently supporting construction execution across multiple trades and project types
Demonstrated ability to exercise independent judgment on field-level decisions in ambiguous, fast-moving environments
Experience coordinating day-to-day with subcontractors and trade partners
Strong organizational and project execution skills, with a track record of owning documentation and deliverables end-to-end
Ability to read and interpret complex construction drawings and technical documents independently
Proficiency in Microsoft Office and hands-on experience with Procore, Bluebeam, or MS Project
Ability to work in a fast-paced, hands-on environment, adapt to changing priorities, and guide others through ambiguity
Willingness and ability to perform physical tasks and work in a variety of environmental conditions
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs a Senior Construction Project Engineer at Helion, you will independently drive the technical and administrative execution of complex, fast-paced construction projects that enable the future of fusion energy. Working across diverse trades and project types, you will own the engineering-side workstreams, including take-offs, documentation, procurement coordination, and field execution that keep projects moving. You'll bring sound judgment to ambiguous, day-to-day situations in the field, ensuring projects are executed safely, efficiently, and to the highest quality standards. This is an onsite role at our Everett, WA office, reporting to the Facilities Build Team Leader.\n\nYou Will:\n\n - Independently own the day-to-day technical execution of assigned construction workstreams, exercising sound judgment to resolve field-level ambiguity and drive work forward with a strong bias for action\n\n - Lead core project processes, stakeholder requests, change order documentation, material procurement, and RFIs/submittals, while driving tasks to completion with a high level of accountability\n\n - Prepare quantity take-offs and estimating support, and manage day-to-day subcontractor/trade partner coordination and scope tracking\n\n - Serve as a key point of daily coordination between internal teams, subcontractors, and suppliers, proactively surfacing risks and blockers with clear context\n\n - Own and continuously improve project documentation systems (meeting minutes, progress tracking, logs, closeout packages), ensuring accuracy and audit-readiness\n\n - Conduct site walks to monitor progress, quality, and safety compliance in the field\n\n - Operate independently in a dynamic environment with shifting priorities, upholding Helion's safety culture, and helping guide junior team members on field execution and documentation standards\n\nRequired Skills:\n\n - 4+ years of experience independently supporting construction execution across multiple trades and project types\n\n - Demonstrated ability to exercise independent judgment on field-level decisions in ambiguous, fast-moving environments\n\n - Experience coordinating day-to-day with subcontractors and trade partners\n\n - Strong organizational and project execution skills, with a track record of owning documentation and deliverables end-to-end\n\n - Ability to read and interpret complex construction drawings and technical documents independently\n\n - Proficiency in Microsoft Office and hands-on experience with Procore, Bluebeam, or MS Project\n\n - Ability to work in a fast-paced, hands-on environment, adapt to changing priorities, and guide others through ambiguity\n\n - Willingness and ability to perform physical tasks and work in a variety of environmental conditions\n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"11798e74-79e3-463d-ac82-94a1049581e1","title":"Process Engineer, Fuel Cycle","department":"Fuel Cycle","team":"Fuel Cycle","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-24T00:36:22.025+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/11798e74-79e3-463d-ac82-94a1049581e1","applyUrl":"https://jobs.ashbyhq.com/helion/11798e74-79e3-463d-ac82-94a1049581e1/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You’ll Be Doing:
You will be at the forefront of designing the world’s first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. You will own process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work collaboratively with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our commercial fusion platform. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.
You Will:
Own inception-to-integration engineering for fuel cycle design units, including system process design, procurement, installation, and commissioning
Perform detailed design for process equipment such as columns, reactors, membranes, heaters, pumps, and piping under varied conditions (ambient, cryogenic, and vacuum)
Use process simulation tools to support design development, integration, and case studies
Produce key deliverables including PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations
Interact with multidisciplinary teams such as mechanical, electrical, controls, operations to deliver fully integrated process designs
Lead high-level design reviews to validate solutions and incorporate feedback into systems
Required Skills:
Bachelor’s degree in Chemical, Mechanical, or Nuclear Engineering or equivalent experience in chemical process design or development
5+ years of experience delivering full-scope chemical engineering projects, including managing technical deliverables and schedules
Experience taking engineering ideas from abstract concepts to physical reality, demonstrated by delivering first-of-a-kind hardware solutions
Proven ability to apply first-principles thinking and methodical problem-solving as demonstrated by leading design and troubleshooting in complex engineering systems
Experience performing detailed process equipment sizing calculations including chemical, fluid, thermal, mechanical, and relief systems
Demonstrated success working on and contributing to multidisciplinary engineering projects
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You’ll Be Doing:\n\nYou will be at the forefront of designing the world’s first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. You will own process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work collaboratively with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our commercial fusion platform. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.\n\nYou Will:\n\n - Own inception-to-integration engineering for fuel cycle design units, including system process design, procurement, installation, and commissioning\n\n - Perform detailed design for process equipment such as columns, reactors, membranes, heaters, pumps, and piping under varied conditions (ambient, cryogenic, and vacuum)\n\n - Use process simulation tools to support design development, integration, and case studies\n\n - Produce key deliverables including PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations\n\n - Interact with multidisciplinary teams such as mechanical, electrical, controls, operations to deliver fully integrated process designs\n\n - Lead high-level design reviews to validate solutions and incorporate feedback into systems\n\nRequired Skills:\n\n - Bachelor’s degree in Chemical, Mechanical, or Nuclear Engineering or equivalent experience in chemical process design or development\n\n - 5+ years of experience delivering full-scope chemical engineering projects, including managing technical deliverables and schedules\n\n - Experience taking engineering ideas from abstract concepts to physical reality, demonstrated by delivering first-of-a-kind hardware solutions\n\n - Proven ability to apply first-principles thinking and methodical problem-solving as demonstrated by leading design and troubleshooting in complex engineering systems\n\n - Experience performing detailed process equipment sizing calculations including chemical, fluid, thermal, mechanical, and relief systems\n\n - Demonstrated success working on and contributing to multidisciplinary engineering projects\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"e903954d-8e1b-4dd8-86b1-30c0e42204ac","title":"Principal Process Engineer, Fuel Cycle","department":"Fuel Cycle","team":"Fuel Cycle","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-27T20:58:16.296+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e903954d-8e1b-4dd8-86b1-30c0e42204ac","applyUrl":"https://jobs.ashbyhq.com/helion/e903954d-8e1b-4dd8-86b1-30c0e42204ac/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You’ll Be Doing:
You will be at the forefront of designing the world’s first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. This role operates at the intersection of process design, system integration, and program strategy, owning the performance, scalability, and operability of the fuel cycle across its full lifecycle. You'll work collaboratively with Engineering, Science, R&D, Operations, and Leadership, serving as a technical authority focused on setting design direction, resolving first-of-a-kind engineering challenges, and delivering critical systems for an integrated, closed-loop fuel cycle. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.
You Will:
Own delivery of major fuel cycle systems from concept through integration, including process design, procurement, installation, and commissioning
Define plant-level fuel cycle philosophy and tradeoffs, including operational approach, throughput, energy usage, holdup inventories, and safety across fuel cycle systems
Utilize first-principles analysis, modeling, and rigorous simulation tools to evaluate steady-state, dynamic, and fault scenarios to ensure design operability
Set technical direction for and guide detailed design of process equipment (e.g., columns, reactors, membranes, heaters, exchangers, pumps, and piping) across ambient, high-temp, cryogenic, and vacuum conditions
Develop and maintain core engineering design deliverables (PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations), ensuring technical rigor and consistency across the program
Drive cross-functional alignment across Science, R&D, EHS, Fuel Cycle Operations, and Plant Engineering to deliver a cohesive and scalable fuel cycle
Lead high-level design reviews as the decision authority, resolving complex technical issues and ensuring alignment with program goals
Ensure technical rigor and alignment of detailed engineering work across team process designs (e.g., columns, reactors, membranes, cryogenic and vacuum systems)
Mentor and develop senior engineers, establish engineering best practices, and shape team capability and technical standards
Represent Helion as a technical authority in external engagements, communicating fuel cycle architecture, design decisions, and program direction through industry forums, conferences, and publications
Required Skills:
Bachelor’s or Master’s degree in Chemical Engineering, Mechanical Engineering, Nuclear Engineering, or related field; advanced degree preferred
12+ years of experience in chemical process design, translating process concepts into first-of-a-kind hardware
Deep technical expertise in transport phenomena (mass, heat, and momentum), thermodynamics, and reaction engineering applied to complex process systems
Decomposition of complex problems into fundamental physical principles, process objectives, and operational constraints to develop solutions grounded in first-principles reasoning
Demonstrated ownership of large-scale integrated systems, defining requirements and driving clarity in ambiguous problem spaces
Demonstrated accountability leading multi-disciplinary efforts and making system-level decisions with significant program impact
Accountable as the technical authority for a technology domain, with expertise in relevant-to-fusion fuel cycle engineering, such as isotope separation, impurity separation, tritium handling, cryogenic systems, or vacuum systems
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You’ll Be Doing:\n\nYou will be at the forefront of designing the world’s first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. This role operates at the intersection of process design, system integration, and program strategy, owning the performance, scalability, and operability of the fuel cycle across its full lifecycle. You'll work collaboratively with Engineering, Science, R&D, Operations, and Leadership, serving as a technical authority focused on setting design direction, resolving first-of-a-kind engineering challenges, and delivering critical systems for an integrated, closed-loop fuel cycle. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.\n\nYou Will:\n\n - Own delivery of major fuel cycle systems from concept through integration, including process design, procurement, installation, and commissioning\n\n - Define plant-level fuel cycle philosophy and tradeoffs, including operational approach, throughput, energy usage, holdup inventories, and safety across fuel cycle systems\n\n - Utilize first-principles analysis, modeling, and rigorous simulation tools to evaluate steady-state, dynamic, and fault scenarios to ensure design operability\n\n - Set technical direction for and guide detailed design of process equipment (e.g., columns, reactors, membranes, heaters, exchangers, pumps, and piping) across ambient, high-temp, cryogenic, and vacuum conditions\n\n - Develop and maintain core engineering design deliverables (PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations), ensuring technical rigor and consistency across the program\n\n - Drive cross-functional alignment across Science, R&D, EHS, Fuel Cycle Operations, and Plant Engineering to deliver a cohesive and scalable fuel cycle\n\n - Lead high-level design reviews as the decision authority, resolving complex technical issues and ensuring alignment with program goals\n\n - Ensure technical rigor and alignment of detailed engineering work across team process designs (e.g., columns, reactors, membranes, cryogenic and vacuum systems)\n\n - Mentor and develop senior engineers, establish engineering best practices, and shape team capability and technical standards\n\n - Represent Helion as a technical authority in external engagements, communicating fuel cycle architecture, design decisions, and program direction through industry forums, conferences, and publications\n\nRequired Skills:\n\n - Bachelor’s or Master’s degree in Chemical Engineering, Mechanical Engineering, Nuclear Engineering, or related field; advanced degree preferred\n\n - 12+ years of experience in chemical process design, translating process concepts into first-of-a-kind hardware\n\n - Deep technical expertise in transport phenomena (mass, heat, and momentum), thermodynamics, and reaction engineering applied to complex process systems\n\n - Decomposition of complex problems into fundamental physical principles, process objectives, and operational constraints to develop solutions grounded in first-principles reasoning\n\n - Demonstrated ownership of large-scale integrated systems, defining requirements and driving clarity in ambiguous problem spaces\n\n - Demonstrated accountability leading multi-disciplinary efforts and making system-level decisions with significant program impact\n\n - Accountable as the technical authority for a technology domain, with expertise in relevant-to-fusion fuel cycle engineering, such as isotope separation, impurity separation, tritium handling, cryogenic systems, or vacuum systems\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"546d8e0e-e57a-4866-bec8-6c3a0a2c7ef4","title":"Principal Experimental Scientist - RF","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-06T15:29:01.527+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/546d8e0e-e57a-4866-bec8-6c3a0a2c7ef4","applyUrl":"https://jobs.ashbyhq.com/helion/546d8e0e-e57a-4866-bec8-6c3a0a2c7ef4/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Principal Experimental Scientist to lead the development of our RF pre-ionization capability for Helion’s fusion generators. In this role, you will own the strategy, technical direction, and execution of RF plasma source development for our FRC system, translating plasma physics goals into robust experimental hardware and operational capability. You will develop, optimize, and validate high-performance RF systems to achieve target plasma density, stability, and coupling efficiency, while defining the diagnostic and experimental approach needed to measure and improve performance. As a principal-level scientist, you will integrate cross-functional input from plasma physics, controls, machine operations, electrical engineering, and data science to mature RF pre-ionization from experimental concept into reliable platform capability. You will also help establish Helion’s long-term technical roadmap and internal best practices for RF-driven plasma startup and next-generation machine development. This is an onsite role reporting directly to our Director of Plasma and Nuclear Science in Everett, WA.
You Will:
Own the end-to-end technical development of Helion’s RF pre-ionization capability for FRC startup, including concept development, experimental design, execution, validation, and performance improvement
Lead hands-on experimental work spanning RF hardware, antenna and coupling design, plasma diagnostics, and operational procedures to deliver repeatable plasma startup performance
Develop and optimize high-performance RF plasma source systems to achieve targeted plasma density, stability, and coupling efficiency
Define and deploy the diagnostic strategy needed to characterize RF-driven plasma formation, coupling behavior, and startup performance, ensuring high-fidelity data and actionable insight
Integrate cross-disciplinary technical input across plasma physics, machine operations, controls, electrical engineering, and data science to align RF development with Helion’s machine roadmap
Partner with technical leadership on strategic planning, long-range roadmap development, and identification of new RF/plasma startup concepts for future Helion systems
Required Skills:
Ph.D. in physics, plasma physics, electrical engineering, aerospace engineering, or a related discipline with strong relevance to RF plasma systems, plasma sources, or fusion experimentation
10+ years of experience in advanced laboratory or R&D environments, including substantial hands-on work with plasma generation systems, RF hardware, vacuum systems, and experimental campaign execution
Deep expertise in RF plasma source development, antenna/coupling design, RF-plasma interactions, or related high-energy plasma hardware
Strong background in plasma diagnostics and data interpretation, with experience using measurement systems to evaluate plasma parameters such as density, temperature, stability, coupling, and current behavior
Demonstrated track record of independently leading complex experimental programs from concept through validation, including cross-functional technical coordination and translation of results into system improvements
Recognized subject matter expertise in one or more areas relevant to RF-assisted plasma startup, pre-ionization physics, experimental plasma systems, or fusion-enabling hardware
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\nWhat You Will Be Doing: \nHelion is hiring a Principal Experimental Scientist to lead the development of our RF pre-ionization capability for Helion’s fusion generators. In this role, you will own the strategy, technical direction, and execution of RF plasma source development for our FRC system, translating plasma physics goals into robust experimental hardware and operational capability. You will develop, optimize, and validate high-performance RF systems to achieve target plasma density, stability, and coupling efficiency, while defining the diagnostic and experimental approach needed to measure and improve performance. As a principal-level scientist, you will integrate cross-functional input from plasma physics, controls, machine operations, electrical engineering, and data science to mature RF pre-ionization from experimental concept into reliable platform capability. You will also help establish Helion’s long-term technical roadmap and internal best practices for RF-driven plasma startup and next-generation machine development. This is an onsite role reporting directly to our Director of Plasma and Nuclear Science in Everett, WA.\n\nYou Will:\n\n - Own the end-to-end technical development of Helion’s RF pre-ionization capability for FRC startup, including concept development, experimental design, execution, validation, and performance improvement\n\n - Lead hands-on experimental work spanning RF hardware, antenna and coupling design, plasma diagnostics, and operational procedures to deliver repeatable plasma startup performance\n\n - Develop and optimize high-performance RF plasma source systems to achieve targeted plasma density, stability, and coupling efficiency\n\n - Define and deploy the diagnostic strategy needed to characterize RF-driven plasma formation, coupling behavior, and startup performance, ensuring high-fidelity data and actionable insight\n\n - Integrate cross-disciplinary technical input across plasma physics, machine operations, controls, electrical engineering, and data science to align RF development with Helion’s machine roadmap\n\n - Partner with technical leadership on strategic planning, long-range roadmap development, and identification of new RF/plasma startup concepts for future Helion systems\n\n\n\nRequired Skills:\n\n - Ph.D. in physics, plasma physics, electrical engineering, aerospace engineering, or a related discipline with strong relevance to RF plasma systems, plasma sources, or fusion experimentation\n\n - 10+ years of experience in advanced laboratory or R&D environments, including substantial hands-on work with plasma generation systems, RF hardware, vacuum systems, and experimental campaign execution\n\n - Deep expertise in RF plasma source development, antenna/coupling design, RF-plasma interactions, or related high-energy plasma hardware\n\n - Strong background in plasma diagnostics and data interpretation, with experience using measurement systems to evaluate plasma parameters such as density, temperature, stability, coupling, and current behavior\n\n - Demonstrated track record of independently leading complex experimental programs from concept through validation, including cross-functional technical coordination and translation of results into system improvements\n\n - Recognized subject matter expertise in one or more areas relevant to RF-assisted plasma startup, pre-ionization physics, experimental plasma systems, or fusion-enabling hardware\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"7e2b8df0-70ca-48c7-9238-ef5dfd1c5833","title":"PR Lead","department":"Communications","team":"Communications","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-13T22:44:39.620+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/7e2b8df0-70ca-48c7-9238-ef5dfd1c5833","applyUrl":"https://jobs.ashbyhq.com/helion/7e2b8df0-70ca-48c7-9238-ef5dfd1c5833/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
Helion is seeking a PR Lead to drive our media relations strategy during a period of rapid growth and expansion. This is a highly visible, high-impact role responsible for shaping how Helion is understood by the public, press, and key stakeholders.
You will serve as a primary interface between Helion and the media - translating complex fusion, energy, and manufacturing concepts into clear, compelling narratives that resonate across technical and mainstream audiences. As Helion moves toward deploying fusion energy systems globally, you will play a critical role in building awareness, credibility, and trust in our mission and technology.
In addition to leading media relations, you will support broader external communications efforts, including executive visibility, thought leadership, and major company announcements. This is an onsite role at our Everett, WA headquarters, reporting to the Director of Communications.
What You Will Do
Lead and execute Helion’s media relations strategy, building strong relationships with top-tier reporters, editors, and outlets across energy, technology, and business
Develop and pitch compelling stories that position Helion as a leader in fusion and next-generation energy
Support executive visibility and external speaking engagements by developing messaging, preparing speakers, and identifying strategic opportunities to elevate Helion’s brand and leadership
Serve as a trusted advisor to internal stakeholders, including executives, on media strategy, messaging, and external communications
Manage media inquiries and proactively shape coverage opportunities
Partner cross-functionally with engineering, manufacturing, science, and policy teams to surface newsworthy milestones and reputation-building initiatives
Required Skills
12+ years of experience in public relations, media relations, or strategic communications, with a proven track record of securing high-impact coverage in top-tier outlets
Strong network of media relationships across energy, climate, technology, or business press
Experience in technology, engineering, or scientific industries is a plus, especially roles partnering closely with technical experts
Exceptional ability to translate complex technical topics into clear, compelling narratives, with excellent writing and storytelling skills
Experience preparing executives and technical leaders for media interviews, speaking engagements, and public-facing events
Ability to operate independently and drive results in a fast-paced, high-growth environment
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nHelion is seeking a PR Lead to drive our media relations strategy during a period of rapid growth and expansion. This is a highly visible, high-impact role responsible for shaping how Helion is understood by the public, press, and key stakeholders.\n\nYou will serve as a primary interface between Helion and the media - translating complex fusion, energy, and manufacturing concepts into clear, compelling narratives that resonate across technical and mainstream audiences. As Helion moves toward deploying fusion energy systems globally, you will play a critical role in building awareness, credibility, and trust in our mission and technology.\n\nIn addition to leading media relations, you will support broader external communications efforts, including executive visibility, thought leadership, and major company announcements. This is an onsite role at our Everett, WA headquarters, reporting to the Director of Communications.\n\nWhat You Will Do\n\n - Lead and execute Helion’s media relations strategy, building strong relationships with top-tier reporters, editors, and outlets across energy, technology, and business\n\n - Develop and pitch compelling stories that position Helion as a leader in fusion and next-generation energy\n\n - Support executive visibility and external speaking engagements by developing messaging, preparing speakers, and identifying strategic opportunities to elevate Helion’s brand and leadership\n\n - Serve as a trusted advisor to internal stakeholders, including executives, on media strategy, messaging, and external communications\n\n - Manage media inquiries and proactively shape coverage opportunities\n\n - Partner cross-functionally with engineering, manufacturing, science, and policy teams to surface newsworthy milestones and reputation-building initiatives\n\nRequired Skills\n\n - 12+ years of experience in public relations, media relations, or strategic communications, with a proven track record of securing high-impact coverage in top-tier outlets\n\n - Strong network of media relationships across energy, climate, technology, or business press\n\n - Experience in technology, engineering, or scientific industries is a plus, especially roles partnering closely with technical experts\n\n - Exceptional ability to translate complex technical topics into clear, compelling narratives, with excellent writing and storytelling skills\n\n - Experience preparing executives and technical leaders for media interviews, speaking engagements, and public-facing events\n\n - Ability to operate independently and drive results in a fast-paced, high-growth environment\n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"ed90129a-d878-4d42-a288-11e858ceefa4","title":"Senior Manager of Internal Communications","department":"Communications","team":"Communications","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-13T21:06:16.932+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/ed90129a-d878-4d42-a288-11e858ceefa4","applyUrl":"https://jobs.ashbyhq.com/helion/ed90129a-d878-4d42-a288-11e858ceefa4/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As Senior Manager of Internal Communications, you will lead and grow Helion's internal communications function as the company continues to rapidly scale. You'll shape how we keep a fast-growing team of builders aligned, informed, and connected to our mission. You'll set the strategy that guides how Helion communicates through major moments, organizational change, and everyday updates, and you'll be a trusted voice for senior leaders navigating those moments. This role needs someone who can think strategically and still roll up their sleeves, building good systems without slowing the team down, in a fast-moving, technical, engineering-driven culture. This is an onsite role that reports directly to our Director of Communications at our Everett, WA office.
You Will:
Set the overall internal communications strategy for Helion, including what we prioritize and how we measure and report success.
Be the senior internal communications advisor to company leaders in major moments, like org announcements, leadership transitions, and company-wide strategic shifts.
Partner closely with the Director of Communications to keep our internal and external stories consistent.
Represent internal comms in conversations with executive leadership, People Ops leadership, and other senior stakeholders on org-wide priorities and initiatives.
Own the budget, tools, and vendor relationships that support internal communications as the function grows.
Step in directly on the highest-stakes moments, writing or editing key messages yourself, while trusting your team to run day-to-day execution.
Manage, coach, and grow the internal comms team, setting priorities and raising the bar on the team's work.
Required Skills:
10+ years in internal or corporate communications, ideally with distributed or shift-based teams.
Prior experience managing people, with experience coaching communicators and helping them grow.
Strong judgment on what to say, what to leave out, and how to make technical or complex topics clear to employees. Experience in a technical or scientific organization is a big plus.
A track record of being trusted by executives to help them communicate through complex or high-stakes moments, including major organizational change.
Excellent writing and editing, with range across formats, from a company-wide email to talking points for an exec. Familiarity with tools like Confluence, Slack, and digital signage platforms is a plus.
A collaborative style, with real experience partnering with executive leadership, People Ops, and other senior stakeholders to get things done together.
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nAs Senior Manager of Internal Communications, you will lead and grow Helion's internal communications function as the company continues to rapidly scale. You'll shape how we keep a fast-growing team of builders aligned, informed, and connected to our mission. You'll set the strategy that guides how Helion communicates through major moments, organizational change, and everyday updates, and you'll be a trusted voice for senior leaders navigating those moments. This role needs someone who can think strategically and still roll up their sleeves, building good systems without slowing the team down, in a fast-moving, technical, engineering-driven culture. This is an onsite role that reports directly to our Director of Communications at our Everett, WA office.\n\nYou Will:\n\n - Set the overall internal communications strategy for Helion, including what we prioritize and how we measure and report success.\n\n - Be the senior internal communications advisor to company leaders in major moments, like org announcements, leadership transitions, and company-wide strategic shifts.\n\n - Partner closely with the Director of Communications to keep our internal and external stories consistent.\n\n - Represent internal comms in conversations with executive leadership, People Ops leadership, and other senior stakeholders on org-wide priorities and initiatives.\n\n - Own the budget, tools, and vendor relationships that support internal communications as the function grows.\n\n - Step in directly on the highest-stakes moments, writing or editing key messages yourself, while trusting your team to run day-to-day execution.\n\n - Manage, coach, and grow the internal comms team, setting priorities and raising the bar on the team's work.\n\nRequired Skills:\n\n - 10+ years in internal or corporate communications, ideally with distributed or shift-based teams.\n\n - Prior experience managing people, with experience coaching communicators and helping them grow.\n\n - Strong judgment on what to say, what to leave out, and how to make technical or complex topics clear to employees. Experience in a technical or scientific organization is a big plus.\n\n - A track record of being trusted by executives to help them communicate through complex or high-stakes moments, including major organizational change.\n\n - Excellent writing and editing, with range across formats, from a company-wide email to talking points for an exec. Familiarity with tools like Confluence, Slack, and digital signage platforms is a plus.\n\n - A collaborative style, with real experience partnering with executive leadership, People Ops, and other senior stakeholders to get things done together.\n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"90f4d795-6496-4ac3-bec8-704ad27cadf8","title":"Procurement Specialist","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-21T23:38:35.775+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/90f4d795-6496-4ac3-bec8-704ad27cadf8","applyUrl":"https://jobs.ashbyhq.com/helion/90f4d795-6496-4ac3-bec8-704ad27cadf8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Due to organization growth, we are seeking multiple proactive and driven Procurement Specialists to join our growing team. You'll collaborate closely with cross-functional teams to procure off the shelf hardware, equipment, services and software, ensuring timely execution of requirements as needed by Helion Energy’s technical and production teams. This position offers the opportunity to become involved in a wide range of procurement activities and categories in a quickly growing organization, along with helping to determine effective procurement processes as our team expands. This is an onsite role that reports directly to the Manager of Procurement at our Everett, WA office.
You Will
Support sourcing of direct or indirect items and service categories for custom requirements and applications.
Create purchase orders to procure hardware, equipment, software and services.
Pursue credit terms with vendors and assist with execution of contracts, forms and agreements.
Resolve receiving and invoicing discrepancies.
Maintain accurate ERP vendor and open order data.
Evolve and implement processes in coordination with team leads and management.
Required Skills:
Bachelor's degree or the equivalent working experience.
1 - 3+ years of experience working in procurement, operations, or buying function supporting manufacturing and R&D.
Operate independently with strong business acumen and problem-solving skills.
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nDue to organization growth, we are seeking multiple proactive and driven Procurement Specialists to join our growing team. You'll collaborate closely with cross-functional teams to procure off the shelf hardware, equipment, services and software, ensuring timely execution of requirements as needed by Helion Energy’s technical and production teams. This position offers the opportunity to become involved in a wide range of procurement activities and categories in a quickly growing organization, along with helping to determine effective procurement processes as our team expands. This is an onsite role that reports directly to the Manager of Procurement at our Everett, WA office.\n\nYou Will\n\n - Support sourcing of direct or indirect items and service categories for custom requirements and applications.\n\n - Create purchase orders to procure hardware, equipment, software and services.\n\n - Pursue credit terms with vendors and assist with execution of contracts, forms and agreements.\n\n - Resolve receiving and invoicing discrepancies.\n\n - Maintain accurate ERP vendor and open order data.\n\n - Evolve and implement processes in coordination with team leads and management.\n\nRequired Skills:\n\n - Bachelor's degree or the equivalent working experience.\n\n - 1 - 3+ years of experience working in procurement, operations, or buying function supporting manufacturing and R&D.\n\n - Operate independently with strong business acumen and problem-solving skills.\n\n#LI-Onsite\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"1e2ff97c-9a78-4f90-99f5-89cfcc9e9eba","title":"Director of Experimental Science","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-17T22:39:45.680+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/1e2ff97c-9a78-4f90-99f5-89cfcc9e9eba","applyUrl":"https://jobs.ashbyhq.com/helion/1e2ff97c-9a78-4f90-99f5-89cfcc9e9eba/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are looking for a Director of Experimental Science to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. You will report directly to our Director of Plasma and Nuclear Science.
You Will:
Build, grow, and lead a team of scientists and engineers who will apply their knowledge and expertise in plasma physics to optimize Helion’s fusion devices
Provide clear and concise summaries of experimental campaign results, enabling stakeholders to make informed decisions and adjustments as needed
Work with Helion’s leadership to establish organizational roadmap, goals, and balance risks for the team that align with our strategy and take full ownership of accomplishing these goals
Oversee projects specific to experimental plasma science such as E&M probes; plasma pre-ionization; plasma-material interaction; device design and requirements; full device data collection, analysis and interpretation in coordination with other teams
Drive schedule ownership and optimization by team members to accelerate milestones
Drive experimental plasma and fusion deliverables to completion in collaboration with Mechanical Engineers, Electrical Engineers, R&D, and Production teams.
Required Skills:
Advanced degree in physics, or a related physical science discipline with a minimum of 10 years of scientific research experience and at least 5 years of experience managing a team of scientists or engineers in a research, development, or technology setting
Demonstrated experience building and leading multidisciplinary teams
Experience managing complex inter-departmental projects (including schedule ownership)
Demonstrated experience in applied physics, building and designing hardware
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\nWe are looking for a Director of Experimental Science to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. You will report directly to our Director of Plasma and Nuclear Science.\n\nYou Will:\n\n - Build, grow, and lead a team of scientists and engineers who will apply their knowledge and expertise in plasma physics to optimize Helion’s fusion devices\n\n - Provide clear and concise summaries of experimental campaign results, enabling stakeholders to make informed decisions and adjustments as needed\n\n - Work with Helion’s leadership to establish organizational roadmap, goals, and balance risks for the team that align with our strategy and take full ownership of accomplishing these goals\n\n - Oversee projects specific to experimental plasma science such as E&M probes; plasma pre-ionization; plasma-material interaction; device design and requirements; full device data collection, analysis and interpretation in coordination with other teams\n\n - Drive schedule ownership and optimization by team members to accelerate milestones\n\n - Drive experimental plasma and fusion deliverables to completion in collaboration with Mechanical Engineers, Electrical Engineers, R&D, and Production teams.\n\nRequired Skills:\n\n - Advanced degree in physics, or a related physical science discipline with a minimum of 10 years of scientific research experience and at least 5 years of experience managing a team of scientists or engineers in a research, development, or technology setting\n\n - Demonstrated experience building and leading multidisciplinary teams\n\n - Experience managing complex inter-departmental projects (including schedule ownership)\n\n - Demonstrated experience in applied physics, building and designing hardware\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"747a593f-ec17-4a7b-a715-9416cfb40e46","title":"System Administrator","department":"Information Security & Technology ","team":"Information Security & Technology ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-19T20:45:56.634+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/747a593f-ec17-4a7b-a715-9416cfb40e46","applyUrl":"https://jobs.ashbyhq.com/helion/747a593f-ec17-4a7b-a715-9416cfb40e46/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
In this role, you will work within a small team to maintain, update, and manage our system software and hardware. You’ll communicate with teams and users of varying levels of technical knowledge to diagnose and resolve problems patiently and efficiently. This role is responsible for setting up and maintaining a system or specific components of a system including installing, configuring, and updating hardware and software; establishing and managing user accounts; overseeing or conducting backup and recovery tasks; implementing operational and technical security controls; and adhering to organizational security policies and procedures.
You Will:
Manage Windows/Linux Servers and Microsoft 365 Administration - Ensure performance and availability across all Microsoft 365 services, implement and manage Group Policies and Active Directory administration, Support and optimize virtualization technologies, and perform server and updates to ensure stability and security
Ensure Security, Governance, and Regulatory Compliance - Harden environments and implement security best practices and compliance guidelines by implementing conditional access policies, DLP, RBAC, MFA, and email security protections. Conduct regular system audits to monitor adherence to security policies, validate security controls, mitigate vulnerabilities, and increase operational efficiency. Support incident response efforts related to system security, email security, and cloud identity threats
Endpoint & Patch Management - Manage OS deployments, application packaging, patch management, and lifecycle automation. Manage and troubleshoot patch management solutions for synchronization and identity federation. Develop and maintain scripts and tools for managing configurations, monitoring, and software deployment across endpoints.
Build Infrastructure Monitoring & Automation - scale and improve monitoring solutions to track system availability, resource utilization, and security compliance. Develop PowerShell scripts and automation tools to improve efficiency, reduce manual tasks, and enforce consistency. Use RMM (Remote Monitoring & Management) tools for system performance tracking, endpoint monitoring, and reporting
Collaborate Cross-functionally – work closely with teams across the business to ensure performance, provide technical leadership and mentoring to IT support staff, participate in on-call rotations and respond to emergency system incidents, and assist with managing and supporting workloads in Azure and AWS as needed
Required Qualifications:
5+ years of experience in Windows Server administration, Office 365/Entra ID management, and infrastructure automation including experience with active Directory (on-prem and Entra ID), Group Policy, and Windows Server hardening
PowerShell scripting experience for system automation, including automating Windows Server, Office 365, and Entra ID tasks
Experience with RMM tools for infrastructure monitoring, patch management, and endpoint management
Experience in Linux Administration
Knowledge of virtualization technologies (VMware, Hyper-V, or equivalent) and system monitoring tools (e.g., SolarWinds, PRTG, Nagios, or similar)
Strong troubleshooting skills, a proactive approach to problem-solving, and ability to manage multiple tasks effectively in a fast-paced environment
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nIn this role, you will work within a small team to maintain, update, and manage our system software and hardware. You’ll communicate with teams and users of varying levels of technical knowledge to diagnose and resolve problems patiently and efficiently. This role is responsible for setting up and maintaining a system or specific components of a system including installing, configuring, and updating hardware and software; establishing and managing user accounts; overseeing or conducting backup and recovery tasks; implementing operational and technical security controls; and adhering to organizational security policies and procedures.\n\n\n\nYou Will:\n\n - Manage Windows/Linux Servers and Microsoft 365 Administration - Ensure performance and availability across all Microsoft 365 services, implement and manage Group Policies and Active Directory administration, Support and optimize virtualization technologies, and perform server and updates to ensure stability and security\n\n - Ensure Security, Governance, and Regulatory Compliance - Harden environments and implement security best practices and compliance guidelines by implementing conditional access policies, DLP, RBAC, MFA, and email security protections. Conduct regular system audits to monitor adherence to security policies, validate security controls, mitigate vulnerabilities, and increase operational efficiency. Support incident response efforts related to system security, email security, and cloud identity threats\n\n - Endpoint & Patch Management - Manage OS deployments, application packaging, patch management, and lifecycle automation. Manage and troubleshoot patch management solutions for synchronization and identity federation. Develop and maintain scripts and tools for managing configurations, monitoring, and software deployment across endpoints.\n\n - Build Infrastructure Monitoring & Automation - scale and improve monitoring solutions to track system availability, resource utilization, and security compliance. Develop PowerShell scripts and automation tools to improve efficiency, reduce manual tasks, and enforce consistency. Use RMM (Remote Monitoring & Management) tools for system performance tracking, endpoint monitoring, and reporting\n\n - Collaborate Cross-functionally – work closely with teams across the business to ensure performance, provide technical leadership and mentoring to IT support staff, participate in on-call rotations and respond to emergency system incidents, and assist with managing and supporting workloads in Azure and AWS as needed\n\n \nRequired Qualifications:\n\n - 5+ years of experience in Windows Server administration, Office 365/Entra ID management, and infrastructure automation including experience with active Directory (on-prem and Entra ID), Group Policy, and Windows Server hardening\n\n - PowerShell scripting experience for system automation, including automating Windows Server, Office 365, and Entra ID tasks\n\n - Experience with RMM tools for infrastructure monitoring, patch management, and endpoint management\n\n - Experience in Linux Administration\n\n - Knowledge of virtualization technologies (VMware, Hyper-V, or equivalent) and system monitoring tools (e.g., SolarWinds, PRTG, Nagios, or similar)\n\n - Strong troubleshooting skills, a proactive approach to problem-solving, and ability to manage multiple tasks effectively in a fast-paced environment\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"8ab1a5c0-a9c6-44c9-8caf-cb618db38890","title":"Senior Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-15T17:41:16.929+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/8ab1a5c0-a9c6-44c9-8caf-cb618db38890","applyUrl":"https://jobs.ashbyhq.com/helion/8ab1a5c0-a9c6-44c9-8caf-cb618db38890/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion’s first power plant, and lay the groundwork for Helion’s transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.
You Will:
Design and implement rate-based assembly processes with support from Production and Engineering
Own and manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)
Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing
Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)
Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams
Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line
Required Skills:
8+ years of technical work experience that includes development and improvement of production systems
Hands-on engineering or manufacturing experience in rate-based manufacturing
Experience communicating with and influencing partners across organizational lines
Experience in cradle-to-grave ownership of complex engineering or production scopes
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion’s first power plant, and lay the groundwork for Helion’s transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.\n\nYou Will:\n\n - Design and implement rate-based assembly processes with support from Production and Engineering\n\n - Own and manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)\n\n - Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing\n\n - Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)\n\n - Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams\n\n - Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line\n\nRequired Skills:\n\n - 8+ years of technical work experience that includes development and improvement of production systems\n\n - Hands-on engineering or manufacturing experience in rate-based manufacturing\n\n - Experience communicating with and influencing partners across organizational lines\n\n - Experience in cradle-to-grave ownership of complex engineering or production scopes\n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a600ee86-9fb0-4520-9d11-7b96ffe2da29","title":"Technical Program Manager, Orion - Reporting to the CTO","department":"Technology","team":"Technology","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-08T21:04:16.360+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a600ee86-9fb0-4520-9d11-7b96ffe2da29","applyUrl":"https://jobs.ashbyhq.com/helion/a600ee86-9fb0-4520-9d11-7b96ffe2da29/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
Technical Program Manager, Orion - Reporting to the CTO
Coordinate Orion execution across science, engineering, manufacturing, supply chain, integration, commissioning, and operations readiness.
Help subunit owners assemble and maintain an integrated Orion-level plan, while making clear that each owner remains responsible for their own schedule, scope, and commitments.
Identify cross-team dependencies, interface risks, schedule conflicts, and unresolved ownership gaps.
Ensure major technical decisions are surfaced quickly, framed clearly, and escalated to the right leader or executive when needed.
Highlight technical tradeoffs involving performance, schedule, risk, manufacturability, cost, reliability, and operability.
Drive the cadence for Orion coordination meetings, technical reviews, dependency reviews, and executive decision forums.
Maintain visibility into the plant-level critical path by integrating inputs from responsible owners, not by replacing their ownership of detailed schedules.
Track major risks, blockers, open decisions, and readiness gaps across the Orion program.
Ensure decisions and changes are communicated clearly to all affected teams.
Partner with systems engineering, integration engineering, production scheduling, and technical leads to connect their work into one coherent Orion execution picture.
Provide a concise, accurate view of Orion status, including what is blocked, what decisions are needed, where risks are increasing, and where executive help is required.
Build the TPM function for Orion as the program scales, including standards for dependency tracking, decision logs, risk reviews, readiness gates, and executive reporting.
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nTechnical Program Manager, Orion - Reporting to the CTO\n\n - Coordinate Orion execution across science, engineering, manufacturing, supply chain, integration, commissioning, and operations readiness.\n\n - Help subunit owners assemble and maintain an integrated Orion-level plan, while making clear that each owner remains responsible for their own schedule, scope, and commitments.\n\n - Identify cross-team dependencies, interface risks, schedule conflicts, and unresolved ownership gaps.\n\n - Ensure major technical decisions are surfaced quickly, framed clearly, and escalated to the right leader or executive when needed.\n\n - Highlight technical tradeoffs involving performance, schedule, risk, manufacturability, cost, reliability, and operability.\n\n - Drive the cadence for Orion coordination meetings, technical reviews, dependency reviews, and executive decision forums.\n\n - Maintain visibility into the plant-level critical path by integrating inputs from responsible owners, not by replacing their ownership of detailed schedules.\n\n - Track major risks, blockers, open decisions, and readiness gaps across the Orion program.\n\n - Ensure decisions and changes are communicated clearly to all affected teams.\n\n - Partner with systems engineering, integration engineering, production scheduling, and technical leads to connect their work into one coherent Orion execution picture.\n\n - Provide a concise, accurate view of Orion status, including what is blocked, what decisions are needed, where risks are increasing, and where executive help is required.\n\n - Build the TPM function for Orion as the program scales, including standards for dependency tracking, decision logs, risk reviews, readiness gates, and executive reporting.\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a325fe3e-e975-49a8-9a86-7169d279bacd","title":"Senior Experimental Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-01T18:02:41.839+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a325fe3e-e975-49a8-9a86-7169d279bacd","applyUrl":"https://jobs.ashbyhq.com/helion/a325fe3e-e975-49a8-9a86-7169d279bacd/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Senior Experimental Scientist to support and advance the plasma diagnostics capability for Helion’s fusion generators. In this role, you will be a key technical contributor for the design, deployment, calibration, and interpretation of plasma diagnostics across experimental campaigns and testbeds. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Lead the design, build, deployment, calibration, and commissioning of plasma diagnostic systems for Helion’s fusion generators, with guidance from senior technical leadership on broader priorities and roadmap alignment
Serve as a go-to technical contributor for a defined diagnostics scope, helping evaluate plasma parameters such as density, temperature, current profiles, and other key performance indicators
Partner cross-functionally with plasma physics, machine operations, controls, mechanical engineering, electrical engineering, and data science teams to align diagnostic capabilities with experimental and operational needs
Develop foundational expertise in pre-ionization plasma diagnostics, establishing best practices and internal methodologies that inform next-generation fusion device development optimized for energy gain and power conversion
Analyze diagnostic data in real time to extract actionable insights about plasma behavior, inform operational tuning, and identify opportunities for performance optimization and system redesign
Contribute to best practices, documentation, and internal methods for plasma diagnostics, helping improve consistency, reliability, and scalability across Helion’s experimental programs
Required Skills:
Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation
3+ years of relevant experience with plasma systems, advanced laboratory environments, high-vacuum systems, pulsed-power systems, or complex experimental hardware
Hands-on experience designing, building, calibrating, troubleshooting, or operating plasma diagnostics such as interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics, optical diagnostics, or related measurement systems
Demonstrated ability to independently lead complex technical workstreams while collaborating with cross-functional stakeholders across science and engineering teams
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nHelion is hiring a Senior Experimental Scientist to support and advance the plasma diagnostics capability for Helion’s fusion generators. In this role, you will be a key technical contributor for the design, deployment, calibration, and interpretation of plasma diagnostics across experimental campaigns and testbeds. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office. \n\nYou Will: \n\n - Lead the design, build, deployment, calibration, and commissioning of plasma diagnostic systems for Helion’s fusion generators, with guidance from senior technical leadership on broader priorities and roadmap alignment\n\n - Serve as a go-to technical contributor for a defined diagnostics scope, helping evaluate plasma parameters such as density, temperature, current profiles, and other key performance indicators\n\n - Partner cross-functionally with plasma physics, machine operations, controls, mechanical engineering, electrical engineering, and data science teams to align diagnostic capabilities with experimental and operational needs\n\n - Develop foundational expertise in pre-ionization plasma diagnostics, establishing best practices and internal methodologies that inform next-generation fusion device development optimized for energy gain and power conversion\n\n - Analyze diagnostic data in real time to extract actionable insights about plasma behavior, inform operational tuning, and identify opportunities for performance optimization and system redesign\n\n - Contribute to best practices, documentation, and internal methods for plasma diagnostics, helping improve consistency, reliability, and scalability across Helion’s experimental programs\n\nRequired Skills: \n\n - Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation\n\n - 3+ years of relevant experience with plasma systems, advanced laboratory environments, high-vacuum systems, pulsed-power systems, or complex experimental hardware\n\n - Hands-on experience designing, building, calibrating, troubleshooting, or operating plasma diagnostics such as interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics, optical diagnostics, or related measurement systems\n\n - Demonstrated ability to independently lead complex technical workstreams while collaborating with cross-functional stakeholders across science and engineering teams\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a68ac2cc-9d87-484b-a417-4893ce95b515","title":"Senior Computational Plasma Scientist - Kinetic / PIC Modeling","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-28T22:56:07.665+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a68ac2cc-9d87-484b-a417-4893ce95b515","applyUrl":"https://jobs.ashbyhq.com/helion/a68ac2cc-9d87-484b-a417-4893ce95b515/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Senior Computational Plasma Scientist to run and interpret kinetic / Particle-in-Cell simulations that help advance our understanding of plasma behavior in Helion’s fusion generators. In this role, you will use tools such as WarpX or similar PIC codes to design simulation campaigns, analyze large-scale field and particle outputs, and compare results against experimental data from Helion’s operating machines. You will focus on turning kinetic simulations into actionable physics insight for topics such as plasma startup, RF/plasma interactions, particle transport, sheath behavior, and other effects that may not be fully captured by fluid or MHD models. This position reports to the Manager of Computational Science at our Everett, WA office and plays a key role in advancing Helion’s path toward fusion electricity.
You Will:
Run kinetic / Particle-in-Cell simulations using WarpX or similar PIC codes to study plasma behavior relevant to Helion’s FRC systems
Develop simulation input decks, PICMI scripts, parameter scans, and repeatable workflows for targeted kinetic modeling studies
Analyze field, particle, and diagnostic outputs from large-scale PIC simulations using Python or similar scientific computing tools
Compare kinetic simulation results against experimental measurements and translate findings into clear physical insight
Partner with experimental scientists, diagnostics engineers, RF engineers, and MHD modelers to determine where PIC modeling can add the most value
Build analysis scripts, visualizations, and reduced data products that make complex simulation results usable across teams
Required Skills:
PhD in Plasma Physics, Applied Physics, Computational Physics, Nuclear Engineering, Aerospace Engineering, or a related technical field
3+ years of post-graduation experience running, analyzing, or interpreting kinetic / Particle-in-Cell plasma simulations in academic, national lab, or industry settings
Strong understanding of kinetic plasma physics and Particle-in-Cell modeling methods
Experience running and interpreting PIC simulations using WarpX, OSIRIS, VPIC, EPOCH, Smilei, LSP, FBPIC, or comparable codes
Experience designing simulation campaigns, including input setup, boundary conditions, parameter scans, convergence checks, and validation workflows
Strong scientific programming skills in Python, MATLAB, Julia, C++, Fortran, or similar languages for simulation analysis and visualization
Ability to communicate complex simulation results clearly to computational, experimental, and cross-functional audiences
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing: \nHelion is hiring a Senior Computational Plasma Scientist to run and interpret kinetic / Particle-in-Cell simulations that help advance our understanding of plasma behavior in Helion’s fusion generators. In this role, you will use tools such as WarpX or similar PIC codes to design simulation campaigns, analyze large-scale field and particle outputs, and compare results against experimental data from Helion’s operating machines. You will focus on turning kinetic simulations into actionable physics insight for topics such as plasma startup, RF/plasma interactions, particle transport, sheath behavior, and other effects that may not be fully captured by fluid or MHD models. This position reports to the Manager of Computational Science at our Everett, WA office and plays a key role in advancing Helion’s path toward fusion electricity.\n\n\n\nYou Will:\n\n - Run kinetic / Particle-in-Cell simulations using WarpX or similar PIC codes to study plasma behavior relevant to Helion’s FRC systems\n\n - Develop simulation input decks, PICMI scripts, parameter scans, and repeatable workflows for targeted kinetic modeling studies\n\n - Analyze field, particle, and diagnostic outputs from large-scale PIC simulations using Python or similar scientific computing tools\n\n - Compare kinetic simulation results against experimental measurements and translate findings into clear physical insight\n\n - Partner with experimental scientists, diagnostics engineers, RF engineers, and MHD modelers to determine where PIC modeling can add the most value\n\n - Build analysis scripts, visualizations, and reduced data products that make complex simulation results usable across teams\n\n\n\nRequired Skills:\n\n - PhD in Plasma Physics, Applied Physics, Computational Physics, Nuclear Engineering, Aerospace Engineering, or a related technical field\n\n - 3+ years of post-graduation experience running, analyzing, or interpreting kinetic / Particle-in-Cell plasma simulations in academic, national lab, or industry settings\n\n - Strong understanding of kinetic plasma physics and Particle-in-Cell modeling methods\n\n - Experience running and interpreting PIC simulations using WarpX, OSIRIS, VPIC, EPOCH, Smilei, LSP, FBPIC, or comparable codes\n\n - Experience designing simulation campaigns, including input setup, boundary conditions, parameter scans, convergence checks, and validation workflows\n\n - Strong scientific programming skills in Python, MATLAB, Julia, C++, Fortran, or similar languages for simulation analysis and visualization\n\n - Ability to communicate complex simulation results clearly to computational, experimental, and cross-functional audiences\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"c575251c-1851-4296-a12a-3779ec56c6c3","title":"Materials Engineer","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-21T19:14:38.563+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/c575251c-1851-4296-a12a-3779ec56c6c3","applyUrl":"https://jobs.ashbyhq.com/helion/c575251c-1851-4296-a12a-3779ec56c6c3/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own well defined workstreams in the lab: designing and running experiments, developing and refining test setups and procedures, and turning data into clear recommendations. You'll partner closely with senior engineers and cross functional teams to translate results into design and process changes, while receiving guidance on priorities and broader strategy. You will report to the Materials Manager, and this is an onsite role located at our Everett, WA office.
You Will:
Plan and run materials test campaigns on materials
Lead failure investigations on structural and polymer-based insulation systems and related components (e.g., insulators, capacitor dielectrics, foils, oils, seals, HV/electrical interfaces) within your scope
Develop and follow lab procedures and checklists for your test areas
Provide materials input to designs in your domain
Be an effective team-member in cross-functional teams and communicate on a regular cadence
Support and mentor lab technologists on specific test methods and setups you own, and collaborate with peers to troubleshoot experiments and fixtures
Required Skills:
Bachelor's or Master's degree in Materials Science, Polymer Science, Chemical Engineering, Electrical Engineering, or a related field, or equivalent industry experience
Hands on experience with failure analysis of materials or components, ideally including electrical insulation systems (e.g., capacitors, HV components, cables, coils) and typical degradation mechanisms.
3+ years of experience with general materials characterization and FA tools, such as:
Optical and/or SEM microscopy
Mechanical or physical property testing
Dielectric testing and/or basic electrical characterization
Polymer characterization tools (e.g., FTIR, DSC, TGA or similar)
Experience working in a lab environment with custom or nonstandard setups, including:
Fixture assembly and basic design
Instrumentation and test scripting or manual test control
Safe operation under written procedures
Strong written and verbal communication skills, with examples of clear, timely updates and effective collaboration with cross functional partners.
Experienced with process oriented approach to lab work, including consistent documentation, good sample hygiene, and adherence to safety protocols.
#LI-Onsite #LI-TS1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own well defined workstreams in the lab: designing and running experiments, developing and refining test setups and procedures, and turning data into clear recommendations. You'll partner closely with senior engineers and cross functional teams to translate results into design and process changes, while receiving guidance on priorities and broader strategy. You will report to the Materials Manager, and this is an onsite role located at our Everett, WA office.\n\nYou Will: \n\n - Plan and run materials test campaigns on materials\n\n - Lead failure investigations on structural and polymer-based insulation systems and related components (e.g., insulators, capacitor dielectrics, foils, oils, seals, HV/electrical interfaces) within your scope\n\n - Develop and follow lab procedures and checklists for your test areas\n\n - Provide materials input to designs in your domain\n\n - Be an effective team-member in cross-functional teams and communicate on a regular cadence\n\n - Support and mentor lab technologists on specific test methods and setups you own, and collaborate with peers to troubleshoot experiments and fixtures\n\nRequired Skills:\n\n - Bachelor's or Master's degree in Materials Science, Polymer Science, Chemical Engineering, Electrical Engineering, or a related field, or equivalent industry experience\n\n - Hands on experience with failure analysis of materials or components, ideally including electrical insulation systems (e.g., capacitors, HV components, cables, coils) and typical degradation mechanisms. \n\n - 3+ years of experience with general materials characterization and FA tools, such as: \n \n - Optical and/or SEM microscopy \n \n - Mechanical or physical property testing \n \n - Dielectric testing and/or basic electrical characterization \n \n - Polymer characterization tools (e.g., FTIR, DSC, TGA or similar) \n\n - Experience working in a lab environment with custom or nonstandard setups, including: \n \n - Fixture assembly and basic design \n \n - Instrumentation and test scripting or manual test control \n \n - Safe operation under written procedures \n\n - Strong written and verbal communication skills, with examples of clear, timely updates and effective collaboration with cross functional partners.\n\n - Experienced with process oriented approach to lab work, including consistent documentation, good sample hygiene, and adherence to safety protocols. \n\n#LI-Onsite #LI-TS1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"18a4093b-9c2f-4590-8df1-88af83d02022","title":"Senior Manager, Materials Science","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-01T17:53:45.284+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/18a4093b-9c2f-4590-8df1-88af83d02022","applyUrl":"https://jobs.ashbyhq.com/helion/18a4093b-9c2f-4590-8df1-88af83d02022/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead Helion’s Materials Interactions and Diagnostics team with a strong focus on developing and deploying critical capabilities that enable the design, testing, and monitoring of materials for extreme environments. You will oversee the delivery of key R&D tools and guide a team of subject matter experts to meet Helion’s materials innovation goals. This onsite position is based in our Everett, WA office and reports to the Director of Materials Science.
You Will:
Set the strategic vision for Materials Interactions and Diagnostics, establishing long-term technical roadmaps spanning characterization, modeling, monitoring, and lifetime prediction in fusion-relevant environments.
Lead, develop, and support subject matter experts driving the development and deployment of new lab infrastructure, driving materials monitoring technologies and developing predictive models and simulations to extend material performance and reliability.
Own end-to-end delivery of infrastructure and platforms, including advanced materials characterization systems, in-situ monitoring technologies, and integrated modeling frameworks.
Build and manage a network of collaborative relationships, both internally and externally, to develop new materials that can survive a fusion environment.
Translate annual goals into objective tasks and manage month-to-month planning towards completing goals and objectives. Drive schedule ownership to accelerate the completion of milestones.
Required Skills:
10+ years of materials-related industry experience and 3+ years of management experience
Master's or PhD in Materials Science, Materials Engineering, Mechanical Engineering, Chemical Engineering or related fields
Proven experience leading R&D organizations delivering complex, high-impact technologies in demanding environments.
Deep expertise in materials characterization, degradation mechanisms, and lifetime prediction, including high temperature, and stress-driven phenomena.
Experience with multiphysics modeling (e.g., Matlab, COMSOL, Python), with the ability to integrate modeling into decision-making frameworks.
Expertise in NDT and in-situ diagnostics, with a track record of advancing monitoring capabilities for critical systems.
Demonstrated success in hiring, mentoring, and developing managers and senior technical talent.
Ability to operate with high autonomy in ambiguous, fast-paced environments, balancing rapid execution with long-term strategic thinking.
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will lead Helion’s Materials Interactions and Diagnostics team with a strong focus on developing and deploying critical capabilities that enable the design, testing, and monitoring of materials for extreme environments. You will oversee the delivery of key R&D tools and guide a team of subject matter experts to meet Helion’s materials innovation goals. This onsite position is based in our Everett, WA office and reports to the Director of Materials Science.\n\nYou Will:\n\n - Set the strategic vision for Materials Interactions and Diagnostics, establishing long-term technical roadmaps spanning characterization, modeling, monitoring, and lifetime prediction in fusion-relevant environments.\n\n - Lead, develop, and support subject matter experts driving the development and deployment of new lab infrastructure, driving materials monitoring technologies and developing predictive models and simulations to extend material performance and reliability.\n\n - Own end-to-end delivery of infrastructure and platforms, including advanced materials characterization systems, in-situ monitoring technologies, and integrated modeling frameworks.\n\n - Build and manage a network of collaborative relationships, both internally and externally, to develop new materials that can survive a fusion environment.\n\n - Translate annual goals into objective tasks and manage month-to-month planning towards completing goals and objectives. Drive schedule ownership to accelerate the completion of milestones.\n\nRequired Skills:\n\n - 10+ years of materials-related industry experience and 3+ years of management experience\n\n - Master's or PhD in Materials Science, Materials Engineering, Mechanical Engineering, Chemical Engineering or related fields\n\n - Proven experience leading R&D organizations delivering complex, high-impact technologies in demanding environments.\n\n - Deep expertise in materials characterization, degradation mechanisms, and lifetime prediction, including high temperature, and stress-driven phenomena.\n\n - Experience with multiphysics modeling (e.g., Matlab, COMSOL, Python), with the ability to integrate modeling into decision-making frameworks.\n\n - Expertise in NDT and in-situ diagnostics, with a track record of advancing monitoring capabilities for critical systems.\n\n - Demonstrated success in hiring, mentoring, and developing managers and senior technical talent.\n\n - Ability to operate with high autonomy in ambiguous, fast-paced environments, balancing rapid execution with long-term strategic thinking.\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"eb9a8d09-05ab-4f6a-a896-848deeec6f65","title":"Fuel Cycle Operations Engineer","department":"Fuel Cycle","team":"Fuel Cycle","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-05T20:05:10.087+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/eb9a8d09-05ab-4f6a-a896-848deeec6f65","applyUrl":"https://jobs.ashbyhq.com/helion/eb9a8d09-05ab-4f6a-a896-848deeec6f65/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Fuel Cycle Operations Engineer to commission, operate, test, and evaluate process equipment for Helion’s fusion fuel cycles. You will support Polaris operations and lead testing and evaluation of fuel cycle technologies and processes, including fuel balancing, isotope separation, water detritiation, and helium separation. Following alignment on the fuel cycle technology approach, you will also own commissioning of fuel cycle design units for Orion. You will report directly to the Fuel Cycle Operations Lead at our Everett, WA office.
You Will:
Perform operations supporting Polaris including fueling, exhaust processing, and purification
Become a Tritium Authorized User to safely lead testing, commissioning and startup operations involving radioactive materials
Collaborate with our design teams to validate scalable fuel cycle processes through hands-on R&D activities, including system buildout, experimental testing and data analysis
Provide remote and eventual onsite commissioning support for fuel cycle processes in the world’s first fusion power plant, located in Malaga, WA
Develop maintenance strategies and processes to enable fuel cycle system reliability through the operational lifecycle
Required Skills:
Bachelor’s in Chemical/Nuclear/Mechanical Engineering, or equivalent on the job experience
5+ years of experience in an Engineering or Operations roles
Strong understanding of operation theory including heat and mass balances, fluid flow, instrumentation, controls, safety, and P&IDs/PFDs
Demonstrated experience designing and leading test campaigns to gather key data, ultimately elucidating fundamental system behavior
Demonstrated experience commissioning, operating, and troubleshooting issues in operating plant environment
Preferred Skills:
Experience with hydrogen or tritium systems, helium isotope separation, vacuum and cryogenic processes, gas analytics, elemental separation, and/or related process technologies
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Fuel Cycle Operations Engineer to commission, operate, test, and evaluate process equipment for Helion’s fusion fuel cycles. You will support Polaris operations and lead testing and evaluation of fuel cycle technologies and processes, including fuel balancing, isotope separation, water detritiation, and helium separation. Following alignment on the fuel cycle technology approach, you will also own commissioning of fuel cycle design units for Orion. You will report directly to the Fuel Cycle Operations Lead at our Everett, WA office.\n\nYou Will:\n\n - Perform operations supporting Polaris including fueling, exhaust processing, and purification\n\n - Become a Tritium Authorized User to safely lead testing, commissioning and startup operations involving radioactive materials\n\n - Collaborate with our design teams to validate scalable fuel cycle processes through hands-on R&D activities, including system buildout, experimental testing and data analysis\n\n - Provide remote and eventual onsite commissioning support for fuel cycle processes in the world’s first fusion power plant, located in Malaga, WA\n\n - Develop maintenance strategies and processes to enable fuel cycle system reliability through the operational lifecycle\n\nRequired Skills:\n\n - Bachelor’s in Chemical/Nuclear/Mechanical Engineering, or equivalent on the job experience\n\n - 5+ years of experience in an Engineering or Operations roles\n\n - Strong understanding of operation theory including heat and mass balances, fluid flow, instrumentation, controls, safety, and P&IDs/PFDs\n\n - Demonstrated experience designing and leading test campaigns to gather key data, ultimately elucidating fundamental system behavior\n\n - Demonstrated experience commissioning, operating, and troubleshooting issues in operating plant environment\n\nPreferred Skills:\n\n - Experience with hydrogen or tritium systems, helium isotope separation, vacuum and cryogenic processes, gas analytics, elemental separation, and/or related process technologies\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"46839c07-8a42-4bfe-a832-70678541f1d5","title":"Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-15T17:58:52.108+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/46839c07-8a42-4bfe-a832-70678541f1d5","applyUrl":"https://jobs.ashbyhq.com/helion/46839c07-8a42-4bfe-a832-70678541f1d5/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion's first power plant, and lay the groundwork for Helion's transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.
You Will:
Design and implement rate-based assembly processes with support from Production and Engineering
Manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)
Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing
Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)
Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams
Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line
Required Skills:
Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, or related field
2+ years of technical work experience that includes development and improvement of production systems
Hands-on engineering or manufacturing experience in rate-based manufacturing
Experience communicating with and influencing partners across organizational lines
Experience in cradle-to-grave ownership of complex engineering or production scopes
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion's first power plant, and lay the groundwork for Helion's transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.\n\n \n\nYou Will:\n\n - Design and implement rate-based assembly processes with support from Production and Engineering\n\n - Manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)\n\n - Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing\n\n - Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)\n\n - Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams\n\n - Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line\n\n \n\nRequired Skills:\n\n - Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, or related field\n\n - 2+ years of technical work experience that includes development and improvement of production systems\n\n - Hands-on engineering or manufacturing experience in rate-based manufacturing\n\n - Experience communicating with and influencing partners across organizational lines\n\n - Experience in cradle-to-grave ownership of complex engineering or production scopes\n\n \n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"263c3ab3-3d9f-4c72-a2f8-fa0fe52c2eb4","title":"Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-15T17:48:51.522+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/263c3ab3-3d9f-4c72-a2f8-fa0fe52c2eb4","applyUrl":"https://jobs.ashbyhq.com/helion/263c3ab3-3d9f-4c72-a2f8-fa0fe52c2eb4/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion's first power plant, and lay the groundwork for Helion's transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.
You Will:
Design and implement rate-based assembly processes with support from Production and Engineering
Manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)
Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing
Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)
Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams
Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line
Required Skills:
5+ years of technical work experience that includes development and improvement of production systems
Hands-on engineering or manufacturing experience in rate-based manufacturing
Experience communicating with and influencing partners across organizational lines
Experience in cradle-to-grave ownership of complex engineering or production scopes
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will design, implement, and optimize the production process for in-house capacitors. This is a unique opportunity to collaborate with other teams (Supply Chain, Production, Engineering, Test Operations), directly influence the commissioning timeline for Helion's first power plant, and lay the groundwork for Helion's transition to generator mass-manufacturing. This is an onsite role that reports to the Manager of Manufacturing Engineering at our Everett, WA office.\n\nYou Will:\n\n - Design and implement rate-based assembly processes with support from Production and Engineering\n\n - Manage interdisciplinary projects to increase rate and throughput of capacitor line (e.g., floor layout, tooling, build cells, large-scale equipment)\n\n - Help develop new business processes such as non-conformance management, process control, process safety, and asset maintenance to support production scale-up and enable sustained rate-based manufacturing\n\n - Gather data (labor hours, cycle times, fallout) to identify production bottlenecks, and propose and deploy solutions (design changes, process changes, equipment, automation)\n\n - Identify high return-on-investment capabilities, including capital equipment and software capabilities that improve manufacturing processes, partnering with Production, Finance, Operations, and Facilities teams\n\n - Collaborate on development of future processes in parallel with supporting and enabling higher output on current production line\n\nRequired Skills:\n\n - 5+ years of technical work experience that includes development and improvement of production systems\n\n - Hands-on engineering or manufacturing experience in rate-based manufacturing\n\n - Experience communicating with and influencing partners across organizational lines\n\n - Experience in cradle-to-grave ownership of complex engineering or production scopes\n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"11d1f007-d4d0-44d1-a956-e3bd0bb8c53e","title":"Controls Development Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-15T18:06:18.357+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/11d1f007-d4d0-44d1-a956-e3bd0bb8c53e","applyUrl":"https://jobs.ashbyhq.com/helion/11d1f007-d4d0-44d1-a956-e3bd0bb8c53e/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will develop, implement, and standardize automation and controls used in manufacturing Helion’s fusion generators. By building in-house expertise in our manufacturing processes, you will help accelerate the transition from rapid prototyping to mass production—advancing Helion’s mission to provide clean electricity for the planet. This is an onsite role that reports directly to the Factory Development Manager at our Everett, WA office.
You Will:
Design, scale, and launch manufacturing equipment for new products being produced for the first time, including the development of automation system architecture and standards for deployment across multiple production lines
Produce electrical one-line diagrams and schematics for automated manufacturing equipment; support integration with the factory’s Manufacturing Execution System (MES) and set up equipment reporting to track Overall Equipment Effectiveness (OEE) and other critical machine data
Collaborate with stakeholders to develop and improve both existing and new testing processes; work across technical teams to understand product integration within pulsed power circuits to optimize test processes aligned with Helion’s top-level generator goals
Collaborate with machine suppliers on high-level equipment design and functionality; support design reviews, acceptance testing, and equipment buyoff to ensure seamless integration into manufacturing operations
Implement safety systems that comply with ANSI, ISO, and OSHA standards for high-volume manufacturing equipment to ensure operational safety and regulatory adherence
Troubleshoot down equipment, identify root causes, and implement long-term solutions to prevent recurrence and ensure sustained manufacturing uptime and efficiency
Required Skills:
Bachelor’s degree in engineering with a minimum of 5 years of experience working with manufacturing controls in high-volume manufacturing environments
Proficient in electrical schematic design and PLC programming using ladder logic, function block, or structured text (e.g., Allen-Bradley, Siemens)
Experienced in programming industrial robots, including systems such as Fanuc and Kuka
Skilled in designing safety systems for automated machines, with relevant experience or qualifications in safety compliance and risk mitigation
Ability to apply physics-based first principles to challenge design requirements and underlying assumptions, driving better engineering outcomes
Strong communication skills with proven success influencing cross-functional partners and building effective partnerships with supply chain and production teams
#LI-Onsite #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing: \n\nYou will develop, implement, and standardize automation and controls used in manufacturing Helion’s fusion generators. By building in-house expertise in our manufacturing processes, you will help accelerate the transition from rapid prototyping to mass production—advancing Helion’s mission to provide clean electricity for the planet. This is an onsite role that reports directly to the Factory Development Manager at our Everett, WA office. \n\nYou Will: \n\n - Design, scale, and launch manufacturing equipment for new products being produced for the first time, including the development of automation system architecture and standards for deployment across multiple production lines\n\n - Produce electrical one-line diagrams and schematics for automated manufacturing equipment; support integration with the factory’s Manufacturing Execution System (MES) and set up equipment reporting to track Overall Equipment Effectiveness (OEE) and other critical machine data \n\n - Collaborate with stakeholders to develop and improve both existing and new testing processes; work across technical teams to understand product integration within pulsed power circuits to optimize test processes aligned with Helion’s top-level generator goals \n\n - Collaborate with machine suppliers on high-level equipment design and functionality; support design reviews, acceptance testing, and equipment buyoff to ensure seamless integration into manufacturing operations \n\n - Implement safety systems that comply with ANSI, ISO, and OSHA standards for high-volume manufacturing equipment to ensure operational safety and regulatory adherence \n\n - Troubleshoot down equipment, identify root causes, and implement long-term solutions to prevent recurrence and ensure sustained manufacturing uptime and efficiency \n\nRequired Skills: \n\n - Bachelor’s degree in engineering with a minimum of 5 years of experience working with manufacturing controls in high-volume manufacturing environments \n\n - Proficient in electrical schematic design and PLC programming using ladder logic, function block, or structured text (e.g., Allen-Bradley, Siemens) \n\n - Experienced in programming industrial robots, including systems such as Fanuc and Kuka \n\n - Skilled in designing safety systems for automated machines, with relevant experience or qualifications in safety compliance and risk mitigation \n\n - Ability to apply physics-based first principles to challenge design requirements and underlying assumptions, driving better engineering outcomes \n\n - Strong communication skills with proven success influencing cross-functional partners and building effective partnerships with supply chain and production teams\n\n#LI-Onsite #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"7bd14ec3-4563-4b92-a28c-15bc249d0021","title":"Principal Power Electronics Packaging Engineer","department":"Special Projects","team":"Special Projects","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-09T16:42:01.947+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/7bd14ec3-4563-4b92-a28c-15bc249d0021","applyUrl":"https://jobs.ashbyhq.com/helion/7bd14ec3-4563-4b92-a28c-15bc249d0021/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
The switching systems in a commercial fusion generator will need to handle extreme pulsed currents in mass-manufacturable package. We are looking for someone to design what the next generation of packaging looks like, working ahead of where technology currently is and defining what it needs to become.
You Will
Lead development of next-generation thermal management and packaging architectures for high-current switching components
Work across packaging geometry, materials selection, and cooling system design to push the performance ceiling of pulsed power switch assemblies
Collaborate with internal teams and industry partners to accelerate development of packaging solutions
Build test setups to validate thermal and electrical performance under realistic pulsed conditions and use that data to drive iteration
Required Skills
Hands-on experience with power electronics packaging for high-current or high-voltage applications
Strong thermal engineering fundamentals; comfortable with modeling and bench validation
Experience with SCRs, diodes, or similar power semiconductors in demanding environments
Proven experience translating research into tangible hardware and products
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nThe switching systems in a commercial fusion generator will need to handle extreme pulsed currents in mass-manufacturable package. We are looking for someone to design what the next generation of packaging looks like, working ahead of where technology currently is and defining what it needs to become.\n\nYou Will\n\n - Lead development of next-generation thermal management and packaging architectures for high-current switching components\n\n - Work across packaging geometry, materials selection, and cooling system design to push the performance ceiling of pulsed power switch assemblies\n\n - Collaborate with internal teams and industry partners to accelerate development of packaging solutions\n\n - Build test setups to validate thermal and electrical performance under realistic pulsed conditions and use that data to drive iteration\n\nRequired Skills\n\n - Hands-on experience with power electronics packaging for high-current or high-voltage applications\n\n - Strong thermal engineering fundamentals; comfortable with modeling and bench validation\n\n - Experience with SCRs, diodes, or similar power semiconductors in demanding environments\n\n - Proven experience translating research into tangible hardware and products\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"8ba990f2-6221-4834-8f50-75a237fe614a","title":"Senior Applied Plasma Data Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-18T17:08:40.396+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/8ba990f2-6221-4834-8f50-75a237fe614a","applyUrl":"https://jobs.ashbyhq.com/helion/8ba990f2-6221-4834-8f50-75a237fe614a/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring a Senior Applied Plasma Data Scientist specializing in synthetic diagnostics to improve how we measure, interpret, and model FRC plasma behavior. In this role, you will develop and validate synthetic diagnostic models that connect experimental diagnostic signals with simulation outputs, helping improve diagnostic accuracy and plasma performance interpretation. In your first year, you will focus on integrating these models with experimental and simulation data pipelines to support faster, more reliable experimental analysis. This position reports to the Experimental Science Manager at our Everett, WA office and plays a key role in advancing Helion’s path toward fusion electricity.
You Will:
Develop and validate machine‑learning frameworks for FRC plasma‑dynamics, leveraging physics‑grounded ML approaches (e.g., differentiable physics, PINNs, surrogate modeling, or hybrid physics+ML systems)
Integrate ML models with existing simulation tools and experimental‑diagnostic pipelines to enable hybrid physics + data‑driven validation workflows
Reproduce experimental plasma conditions within ML modeling workflows to support interpretation of magnetic diffusion, circuit response, and diagnostic measurements
Generate analysis scripts for post‑processing, parsing model outputs, and visualizing correlations between ML‑based predictions and experimental results
Collaborate with plasma‑physics, pulsed‑power, and transient‑magnetics experts to expand the fidelity and fusion‑relevance of ML‑enabled modeling frameworks
Communicate results with rigor and clarity through reports, presentations, and technical visualizations for research stakeholders
Required Skills:
PhD in Physics, Engineering, Applied Math, Computational Science, Machine Learning, or related field with emphasis on physics‑grounded modeling
3+ years of industry or research‑lab experience applying machine learning in experimental, simulation‑driven, or scientific R&D environments
Expertise with physics‑informed or physics‑constrained ML methods, such as differentiable physics, PINNs, scientific ML, surrogate modeling, or reduced‑order models for complex physical systems
Experience integrating ML models with scientific‑computing workflows, simulation tools, or experimental diagnostics
Proficiency scripting for data parsing, model analysis, and visualization (MATLAB, Python, or similar; Fortran or HPC exposure valuable)
Familiarity with magnetic diffusion, circuit coupling, or plasma‑dynamics modeling in pulsed‑power or electromagnetics systems
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing: \nHelion is hiring a Senior Applied Plasma Data Scientist specializing in synthetic diagnostics to improve how we measure, interpret, and model FRC plasma behavior. In this role, you will develop and validate synthetic diagnostic models that connect experimental diagnostic signals with simulation outputs, helping improve diagnostic accuracy and plasma performance interpretation. In your first year, you will focus on integrating these models with experimental and simulation data pipelines to support faster, more reliable experimental analysis. This position reports to the Experimental Science Manager at our Everett, WA office and plays a key role in advancing Helion’s path toward fusion electricity.\n\n\n\nYou Will:\n\n - Develop and validate machine‑learning frameworks for FRC plasma‑dynamics, leveraging physics‑grounded ML approaches (e.g., differentiable physics, PINNs, surrogate modeling, or hybrid physics+ML systems)\n\n - Integrate ML models with existing simulation tools and experimental‑diagnostic pipelines to enable hybrid physics + data‑driven validation workflows\n\n - Reproduce experimental plasma conditions within ML modeling workflows to support interpretation of magnetic diffusion, circuit response, and diagnostic measurements\n\n - Generate analysis scripts for post‑processing, parsing model outputs, and visualizing correlations between ML‑based predictions and experimental results\n\n - Collaborate with plasma‑physics, pulsed‑power, and transient‑magnetics experts to expand the fidelity and fusion‑relevance of ML‑enabled modeling frameworks\n\n - Communicate results with rigor and clarity through reports, presentations, and technical visualizations for research stakeholders\n\n\n\nRequired Skills:\n\n - PhD in Physics, Engineering, Applied Math, Computational Science, Machine Learning, or related field with emphasis on physics‑grounded modeling\n\n - 3+ years of industry or research‑lab experience applying machine learning in experimental, simulation‑driven, or scientific R&D environments\n\n - Expertise with physics‑informed or physics‑constrained ML methods, such as differentiable physics, PINNs, scientific ML, surrogate modeling, or reduced‑order models for complex physical systems\n\n - Experience integrating ML models with scientific‑computing workflows, simulation tools, or experimental diagnostics\n\n - Proficiency scripting for data parsing, model analysis, and visualization (MATLAB, Python, or similar; Fortran or HPC exposure valuable)\n\n - Familiarity with magnetic diffusion, circuit coupling, or plasma‑dynamics modeling in pulsed‑power or electromagnetics systems\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a79a46b2-8653-49b6-8516-b18b9900de55","title":"Manager, Plasma Diagnostics","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-17T21:21:18.260+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a79a46b2-8653-49b6-8516-b18b9900de55","applyUrl":"https://jobs.ashbyhq.com/helion/a79a46b2-8653-49b6-8516-b18b9900de55/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are looking for a Manager of Plasma Diagnostics to manage experimental diagnostics projects and to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Lead a team of scientists and engineers working on various projects and initiatives
Present scientific progress updates during internal meetings and conferences
Create the team roadmap taking into consideration how the physics of different subsystems work together to create a strategic vision
Collaborate with other scientists and engineers in the development and testing of experimental instrumentation and procedures
Drive schedule ownership and optimization by team members to accelerate milestones
Drive design, analysis, and process improvements to increase throughput
Required Skills:
Advanced degree in physics or related physical science discipline
5+ years of scientific research experience with 1+ years managing scientists or engineers in research, development, or technology settings
Knowledge of applied plasma physics with hands-on experience in hardware design and development
Experience leading multidisciplinary teams and managing complex interdepartmental projects, including schedule ownership
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n \n\nWhat You Will Be Doing:\nWe are looking for a Manager of Plasma Diagnostics to manage experimental diagnostics projects and to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. This is an onsite role that reports directly to the Director of Plasma and Nuclear Science at our Everett, WA office.\n\nYou Will:\n\n - Lead a team of scientists and engineers working on various projects and initiatives \n\n - Present scientific progress updates during internal meetings and conferences \n\n - Create the team roadmap taking into consideration how the physics of different subsystems work together to create a strategic vision \n\n - Collaborate with other scientists and engineers in the development and testing of experimental instrumentation and procedures \n\n - Drive schedule ownership and optimization by team members to accelerate milestones \n\n - Drive design, analysis, and process improvements to increase throughput \n\nRequired Skills:\n\n - Advanced degree in physics or related physical science discipline\n\n - 5+ years of scientific research experience with 1+ years managing scientists or engineers in research, development, or technology settings\n\n - Knowledge of applied plasma physics with hands-on experience in hardware design and development\n\n - Experience leading multidisciplinary teams and managing complex interdepartmental projects, including schedule ownership\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"4388852c-2dd6-410f-a5c5-7ba64c7b23c5","title":"Senior Materials Engineer, Dielectrics","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-22T16:37:25.399+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4388852c-2dd6-410f-a5c5-7ba64c7b23c5","applyUrl":"https://jobs.ashbyhq.com/helion/4388852c-2dd6-410f-a5c5-7ba64c7b23c5/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will play a key role in developing dielectric materials suited for high voltage components that maximize efficiency in the extreme environment of a nuclear fusion reactor. Specific responsibilities will include the development and evaluation of novel materials or the assessment and vetting of a wide range of emerging materials with a focus on their extended performance under radiation exposure. In this onsite role, based at our Everett, WA office, you will report to the Director of Materials Science and collaborate closely with cross-functional teams to advance Helion’s mission.
You Will:
Lead high impact and multi-disciplinary projects to develop new high-voltage dielectric insulating materials that can perform under applied high-voltage conditions in an advanced fusion generator
Lead testing campaigns to quantify the electrical properties and behavioral response limits of materials exposed to demanding conditions of heat, stress, and accumulated radiation damage
Perform comprehensive reviews of published research and development efforts in advanced high-voltage dielectric materials and distill the information into summaries for non-nuclear engineers
Operate in an environment with obstacles and changing requirements, balancing risks with rapid delivery requirements
Partner with other internal Helion teams, external vendors, national laboratories, and universities to establish pathways to extended capabilities
Develop a broad collaborative network and represent Helion at technical meetings and conferences
Required Skills:
An advanced degree and/or extensive understanding of electrically insulating and dielectric materials, typically demonstrated by a degree in materials science, electrical engineering, physics, nuclear engineering, or related disciplines and 8+ years of hands-on work
8+ years of industry-related experience, including proven results executing R&D and development projects (including design reviews) for a commercial product
Capability to plan and lead R&D efforts guided by a milestone schedule
The ideal candidate would have a bias for action, know how to execute with urgency and favor learning through rapid prototyping
Preferred Skills:
Experience with radiation effects testing and characterization
Proven results with the new product introduction from seed concepts to commercial deployment
Practical knowledge of multi-physics modeling for simulating microstructures and properties based on processing approaches and relevant operating environments
#LI-Onsite #LI-TM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will play a key role in developing dielectric materials suited for high voltage components that maximize efficiency in the extreme environment of a nuclear fusion reactor. Specific responsibilities will include the development and evaluation of novel materials or the assessment and vetting of a wide range of emerging materials with a focus on their extended performance under radiation exposure. In this onsite role, based at our Everett, WA office, you will report to the Director of Materials Science and collaborate closely with cross-functional teams to advance Helion’s mission.\n\nYou Will:\n\n - Lead high impact and multi-disciplinary projects to develop new high-voltage dielectric insulating materials that can perform under applied high-voltage conditions in an advanced fusion generator\n\n - Lead testing campaigns to quantify the electrical properties and behavioral response limits of materials exposed to demanding conditions of heat, stress, and accumulated radiation damage\n\n - Perform comprehensive reviews of published research and development efforts in advanced high-voltage dielectric materials and distill the information into summaries for non-nuclear engineers\n\n - Operate in an environment with obstacles and changing requirements, balancing risks with rapid delivery requirements\n\n - Partner with other internal Helion teams, external vendors, national laboratories, and universities to establish pathways to extended capabilities\n\n - Develop a broad collaborative network and represent Helion at technical meetings and conferences\n\nRequired Skills:\n\n - An advanced degree and/or extensive understanding of electrically insulating and dielectric materials, typically demonstrated by a degree in materials science, electrical engineering, physics, nuclear engineering, or related disciplines and 8+ years of hands-on work\n\n - 8+ years of industry-related experience, including proven results executing R&D and development projects (including design reviews) for a commercial product\n\n - Capability to plan and lead R&D efforts guided by a milestone schedule\n\n - The ideal candidate would have a bias for action, know how to execute with urgency and favor learning through rapid prototyping\n\nPreferred Skills:\n\n - Experience with radiation effects testing and characterization\n\n - Proven results with the new product introduction from seed concepts to commercial deployment\n\n - Practical knowledge of multi-physics modeling for simulating microstructures and properties based on processing approaches and relevant operating environments\n\n\n\n#LI-Onsite #LI-TM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"2b3a9652-dd8e-4a24-a4a7-4aea4dd71e1c","title":"Procurement Manager ","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-14T22:06:31.574+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/2b3a9652-dd8e-4a24-a4a7-4aea4dd71e1c","applyUrl":"https://jobs.ashbyhq.com/helion/2b3a9652-dd8e-4a24-a4a7-4aea4dd71e1c/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
This is a newly created role driven by Helion’s continued growth and the need to scale our procurement capabilities. As Indirect Procurement Manager, you’ll have the opportunity to build and develop a growing team, shape how we approach indirect sourcing, and establish the strategies and processes that will support Helion at its next stage. You’ll lead procurement across categories including software, professional services, hardware, capital expenditures, and research and development, partnering across the company to improve cost, quality, technology, and operational resilience.
You Will:
Lead and develop a high-performing procurement team, including hiring, coaching, training, workload management, and performance accountability.
Develop and execute sourcing strategies across indirect categories, with an emphasis on cost optimization, scalability, standardization, risk mitigation, and supply chain resilience.
Manage the end-to-end sourcing process, from requirements gathering and competitive bidding through supplier selection, negotiation, contracting, and renewals.
Partner with Engineering, IT, Finance, Legal, and other stakeholders to define business requirements, forecast spend, evaluate total cost of ownership, and establish clear agreements, intellectual property terms, and statements of work.
Negotiate complex, high-value agreements and build strategic supplier relationships that improve pricing, service quality, innovation, and long-term value.
Strengthen procurement operations through standardized processes, supplier performance reviews, KPIs, continuous improvement initiatives, and executive reporting on category performance and risk.
Required Qualifications
Bachelor’s degree in supply chain, engineering, business, or a related field or years of experience.
8+ years of experience in procurement, strategic sourcing, or category management, including responsibility for one or more indirect categories such as IT, professional services, hardware, capital expenditures, or facilities management.
3+ years hiring, managing, coaching, and developing procurement or sourcing professionals.
Demonstrated success developing and executing category strategies in a growing or rapidly changing organization.
Experience leading complex, high-value negotiations and working with agreements such as MSAs, SOWs, amendments, and renewals.
Strong analytical and financial acumen, including experience evaluating pricing models, spend, and total cost of ownership.
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nThis is a newly created role driven by Helion’s continued growth and the need to scale our procurement capabilities. As Indirect Procurement Manager, you’ll have the opportunity to build and develop a growing team, shape how we approach indirect sourcing, and establish the strategies and processes that will support Helion at its next stage. You’ll lead procurement across categories including software, professional services, hardware, capital expenditures, and research and development, partnering across the company to improve cost, quality, technology, and operational resilience.\n\nYou Will:\n\n - Lead and develop a high-performing procurement team, including hiring, coaching, training, workload management, and performance accountability.\n\n - Develop and execute sourcing strategies across indirect categories, with an emphasis on cost optimization, scalability, standardization, risk mitigation, and supply chain resilience.\n\n - Manage the end-to-end sourcing process, from requirements gathering and competitive bidding through supplier selection, negotiation, contracting, and renewals.\n\n - Partner with Engineering, IT, Finance, Legal, and other stakeholders to define business requirements, forecast spend, evaluate total cost of ownership, and establish clear agreements, intellectual property terms, and statements of work.\n\n - Negotiate complex, high-value agreements and build strategic supplier relationships that improve pricing, service quality, innovation, and long-term value.\n\n - Strengthen procurement operations through standardized processes, supplier performance reviews, KPIs, continuous improvement initiatives, and executive reporting on category performance and risk.\n\nRequired Qualifications\n\n - Bachelor’s degree in supply chain, engineering, business, or a related field or years of experience.\n\n - 8+ years of experience in procurement, strategic sourcing, or category management, including responsibility for one or more indirect categories such as IT, professional services, hardware, capital expenditures, or facilities management.\n\n - 3+ years hiring, managing, coaching, and developing procurement or sourcing professionals.\n\n - Demonstrated success developing and executing category strategies in a growing or rapidly changing organization.\n\n - Experience leading complex, high-value negotiations and working with agreements such as MSAs, SOWs, amendments, and renewals.\n\n - Strong analytical and financial acumen, including experience evaluating pricing models, spend, and total cost of ownership.\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"a30faf99-e156-46ec-8dc0-23f87bfe2dba","title":"Test Automation Engineer, Manufacturing","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-23T22:54:35.966+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a30faf99-e156-46ec-8dc0-23f87bfe2dba","applyUrl":"https://jobs.ashbyhq.com/helion/a30faf99-e156-46ec-8dc0-23f87bfe2dba/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own and improve automated manufacturing test systems for high-voltage electrical assemblies used in energy-storage components for Helion’s fusion generators. This role sits within Manufacturing Engineering and supports the transition from prototype builds to volume manufacturing by developing production test processes, integrating instrumentation, improving test software, troubleshooting equipment issues, and ensuring test stations are safe, repeatable, maintainable, and scalable. You will work closely with Design Engineering, Operations, Maintenance, and external vendors to improve test coverage, throughput, equipment readiness, and manufacturing traceability. This is an onsite role that reports directly to the Manager of Manufacturing Engineering at our Everett, WA office.
You Will:
Own and improve automated manufacturing test systems from prototype implementation through production release, ramp, and sustainment.
Develop production test processes for capacitor manufacturing, including in-line testing, end-of-line testing, accelerated qualification testing, and safe commissioning practices.
Translate product requirements, failure modes, and pulsed-power circuit requirements into repeatable test methods, limits, diagnostics, and acceptance criteria.
Develop and maintain test software, data collection systems, visualization tools, automated reporting, and analysis tools used to monitor test station performance, yield, throughput, process health, and KPIs.
Integrate programmable instrumentation, sensors, controls, and test equipment into safe, reliable, and maintainable automated test systems.
Design and improve automated test processes with appropriate controls for high-voltage and stored-energy hazards, including interlocks, fault handling, procedural controls, and equipment documentation.
Work cross-functionally with Design Engineering, Operations Engineering, Maintenance, technicians, and vendors to improve design for test, automation, manufacturability, maintainability, MES integration, traceability, and production ramp readiness.
Troubleshoot automated test equipment, establish root cause, and implement corrective actions that improve uptime, reliability, and recurrence prevention.
Required Skills:
5+ years of experience developing, deploying, or sustaining automated manufacturing test systems, production equipment, or semi-/fully automated manufacturing processes in a hardware manufacturing environment.
Strong manufacturing engineering fundamentals, including process development, production ramp, equipment readiness, troubleshooting, root cause analysis, and continuous improvement.
Proficiency developing test automation software in Python or a comparable language for production equipment, instrumentation, data acquisition, or automated test execution.
Experience integrating programmable instrumentation or test equipment using SCPI, GPIB, Ethernet/LAN, serial communication, DAQ hardware, or similar interfaces.
Ability to translate product requirements, failure modes, and engineering assumptions into repeatable production test methods, limits, diagnostics, and acceptance criteria.
Experience working cross-functionally with Design Engineering, Operations, Production, Maintenance, technicians, supply chain, and external equipment vendors.
Experience using SQL or similar database tools for manufacturing data collection, analysis, traceability, reporting, or critical data management.
Working knowledge of high-voltage electrical circuits, stored-energy hazards, and safe test system design principles.
#LI-ONSITE #LI-SA1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWhat You Will Be Doing:\n\nYou will own and improve automated manufacturing test systems for high-voltage electrical assemblies used in energy-storage components for Helion’s fusion generators. This role sits within Manufacturing Engineering and supports the transition from prototype builds to volume manufacturing by developing production test processes, integrating instrumentation, improving test software, troubleshooting equipment issues, and ensuring test stations are safe, repeatable, maintainable, and scalable. You will work closely with Design Engineering, Operations, Maintenance, and external vendors to improve test coverage, throughput, equipment readiness, and manufacturing traceability. This is an onsite role that reports directly to the Manager of Manufacturing Engineering at our Everett, WA office.\n\nYou Will:\n\n - Own and improve automated manufacturing test systems from prototype implementation through production release, ramp, and sustainment.\n\n - Develop production test processes for capacitor manufacturing, including in-line testing, end-of-line testing, accelerated qualification testing, and safe commissioning practices.\n\n - Translate product requirements, failure modes, and pulsed-power circuit requirements into repeatable test methods, limits, diagnostics, and acceptance criteria.\n\n - Develop and maintain test software, data collection systems, visualization tools, automated reporting, and analysis tools used to monitor test station performance, yield, throughput, process health, and KPIs.\n\n - Integrate programmable instrumentation, sensors, controls, and test equipment into safe, reliable, and maintainable automated test systems.\n\n - Design and improve automated test processes with appropriate controls for high-voltage and stored-energy hazards, including interlocks, fault handling, procedural controls, and equipment documentation.\n\n - Work cross-functionally with Design Engineering, Operations Engineering, Maintenance, technicians, and vendors to improve design for test, automation, manufacturability, maintainability, MES integration, traceability, and production ramp readiness.\n\n - Troubleshoot automated test equipment, establish root cause, and implement corrective actions that improve uptime, reliability, and recurrence prevention.\n\n\n\nRequired Skills:\n\n - 5+ years of experience developing, deploying, or sustaining automated manufacturing test systems, production equipment, or semi-/fully automated manufacturing processes in a hardware manufacturing environment.\n\n - Strong manufacturing engineering fundamentals, including process development, production ramp, equipment readiness, troubleshooting, root cause analysis, and continuous improvement.\n\n - Proficiency developing test automation software in Python or a comparable language for production equipment, instrumentation, data acquisition, or automated test execution.\n\n - Experience integrating programmable instrumentation or test equipment using SCPI, GPIB, Ethernet/LAN, serial communication, DAQ hardware, or similar interfaces.\n\n - Ability to translate product requirements, failure modes, and engineering assumptions into repeatable production test methods, limits, diagnostics, and acceptance criteria.\n\n - Experience working cross-functionally with Design Engineering, Operations, Production, Maintenance, technicians, supply chain, and external equipment vendors.\n\n - Experience using SQL or similar database tools for manufacturing data collection, analysis, traceability, reporting, or critical data management.\n\n - Working knowledge of high-voltage electrical circuits, stored-energy hazards, and safe test system design principles.\n\n#LI-ONSITE #LI-SA1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"e22479a1-1707-47c3-9dad-c07db50de815","title":"Experimental Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-06-24T18:45:22.612+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e22479a1-1707-47c3-9dad-c07db50de815","applyUrl":"https://jobs.ashbyhq.com/helion/e22479a1-1707-47c3-9dad-c07db50de815/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is hiring an Experimental Scientist to support the development, deployment, calibration, and operation of plasma diagnostics for Helion’s fusion generators. In this role, you will contribute to hands-on experimental work across plasma diagnostics, test campaigns, and high-vacuum systems while partnering closely with scientists, engineers, machine operators, and data teams. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.
You Will:
Support the design, build, deployment, calibration, and commissioning of plasma diagnostic systems for Helion’s fusion generators, operating with autonomy on defined tasks and workstreams while escalating technical risks or tradeoffs when appropriate
Contribute to the operation and troubleshooting of plasma diagnostics used to evaluate plasma parameters such as density, temperature, current profiles, and other key performance indicators
Work cross-functionally with plasma physics, machine operations, controls, mechanical engineering, electrical engineering, and data science teams to support diagnostic readiness for experimental campaigns and testbeds
Develop hands-on expertise in pre-ionization plasma diagnostics, helping establish consistent methods and practices that support next-generation fusion device development
Analyze diagnostic data to identify trends, support experimental interpretation, and inform operational tuning, hardware improvements, or follow-up testing
Document experimental procedures, calibration methods, test results, and lessons learned to improve consistency, reliability, and knowledge sharing across Helion’s experimental programs
Required Skills:
Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation
Relevant hands-on experience with plasma systems, advanced laboratory environments, high-vacuum systems, pulsed-power systems, or complex experimental hardware
Experience supporting the design, build, calibration, troubleshooting, or operation of plasma diagnostics such as interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics, optical diagnostics, or related measurement systems
Ability to operate autonomously on day-to-day technical tasks, apply critical thinking across multiple inputs, and escalate issues appropriately when technical risk, scope, or priority requires broader alignment
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nHelion is hiring an Experimental Scientist to support the development, deployment, calibration, and operation of plasma diagnostics for Helion’s fusion generators. In this role, you will contribute to hands-on experimental work across plasma diagnostics, test campaigns, and high-vacuum systems while partnering closely with scientists, engineers, machine operators, and data teams. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.\n\nYou Will: \n\n - Support the design, build, deployment, calibration, and commissioning of plasma diagnostic systems for Helion’s fusion generators, operating with autonomy on defined tasks and workstreams while escalating technical risks or tradeoffs when appropriate\n\n - Contribute to the operation and troubleshooting of plasma diagnostics used to evaluate plasma parameters such as density, temperature, current profiles, and other key performance indicators\n\n - Work cross-functionally with plasma physics, machine operations, controls, mechanical engineering, electrical engineering, and data science teams to support diagnostic readiness for experimental campaigns and testbeds\n\n - Develop hands-on expertise in pre-ionization plasma diagnostics, helping establish consistent methods and practices that support next-generation fusion device development\n\n - Analyze diagnostic data to identify trends, support experimental interpretation, and inform operational tuning, hardware improvements, or follow-up testing\n\n - Document experimental procedures, calibration methods, test results, and lessons learned to improve consistency, reliability, and knowledge sharing across Helion’s experimental programs\n\nRequired Skills: \n\n - Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation\n\n - Relevant hands-on experience with plasma systems, advanced laboratory environments, high-vacuum systems, pulsed-power systems, or complex experimental hardware\n\n - Experience supporting the design, build, calibration, troubleshooting, or operation of plasma diagnostics such as interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics, optical diagnostics, or related measurement systems\n\n - Ability to operate autonomously on day-to-day technical tasks, apply critical thinking across multiple inputs, and escalate issues appropriately when technical risk, scope, or priority requires broader alignment\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"73a363fb-a22e-4b72-85fb-00f8881c4ac8","title":"Senior Supplier Development Engineer, Mechanical","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-05T16:27:17.047+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/73a363fb-a22e-4b72-85fb-00f8881c4ac8","applyUrl":"https://jobs.ashbyhq.com/helion/73a363fb-a22e-4b72-85fb-00f8881c4ac8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Senior Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role located at our Everett, WA office.
You Will:
Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent
Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team
Support product ramp from new product introduction through to high-volume manufacturing
Define supplier technical and quality specifications based on engineering and program requirements
Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production
Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)
Develop and approve process controls for important characteristics
Recommend technical product improvements to reduce risk and potential defect opportunities
Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans
Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues
Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain
Improve the supply chain
Help build the supplier quality program and team at Helion
Help develop receiving inspection and quality standards
Required Skills:
8+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems
Bachelor's degree or higher in an engineering discipline, or relevant field
Experience managing external suppliers
Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)
Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)
Experience with quality systems (ISO 9000 / TS)
Able to travel up to 50% of the time
#LI-Onsite #LI-KL1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Senior Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent\n\n - Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team\n\n - Support product ramp from new product introduction through to high-volume manufacturing\n\n - Define supplier technical and quality specifications based on engineering and program requirements\n\n - Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production\n\n - Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)\n\n - Develop and approve process controls for important characteristics\n\n - Recommend technical product improvements to reduce risk and potential defect opportunities\n\n - Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans\n\n - Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues\n\n - Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain\n\n - Improve the supply chain\n\n - Help build the supplier quality program and team at Helion\n\n - Help develop receiving inspection and quality standards\n\nRequired Skills:\n\n - 8+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems\n\n - Bachelor's degree or higher in an engineering discipline, or relevant field\n\n - Experience managing external suppliers\n\n - Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)\n\n - Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)\n\n - Experience with quality systems (ISO 9000 / TS)\n\n - Able to travel up to 50% of the time\n\n#LI-Onsite #LI-KL1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"c0fa122b-d4fc-4692-b78d-c14bedf53f36","title":"Manager, Quality ","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-10T15:29:37.560+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/c0fa122b-d4fc-4692-b78d-c14bedf53f36","applyUrl":"https://jobs.ashbyhq.com/helion/c0fa122b-d4fc-4692-b78d-c14bedf53f36/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Build and lead Helion's quality function from the ground up, creating the people, systems, standards, and operating rhythms needed to deliver first-of-a-kind fusion hardware with repeatable, measurable, and scalable quality.
This isn't a role focused on maintaining an existing quality system. It's an opportunity for a hands-on leader to design and build one. You'll establish the quality strategy, processes, and culture that enable Helion to move quickly while ensuring quality is built into every stage of the hardware lifecycle.
You'll partner closely with Engineering, Manufacturing, Supply Chain, Operations, and Test to prevent defects before they occur, identify and mitigate risk, solve complex problems at their root cause, and continuously improve execution as we scale toward commercial fusion power.
This is an onsite role reporting to the Director of Operational Excellence and is based in Everett, WA.
You Will:
Build and lead Helion’s quality organization across Quality Engineering, Supplier Quality, Inspection, and Quality Systems
Hire, develop, and mentor a high-performing technical team that promotes ownership, continuous learning, and operational excellence
Design and scale practical quality systems, processes, standards, inspection strategies, traceability, and metrics that support speed and rigor
Own quality execution across the hardware lifecycle, including nonconformance management, MRB, CAPA, supplier quality, root cause analysis, and continuous improvement
Partner with Engineering, Manufacturing, Supply Chain, Operations, and Test to build quality in early, improve process capability, reduce defects, and increase first-pass yield
Foster a culture where quality is everyone’s responsibility, using structured problem-solving and data-driven decisions to identify risk and support Helion’s growth from prototype to commercial-scale production
Required Skills:
Bachelor's degree in Engineering, Manufacturing, Quality, or a related technical field
7+ years of experience in quality, manufacturing, supplier quality, hardware engineering, production engineering, or a related discipline, including experience in complex hardware environments
3+ years of experience building and leading high-performing technical teams and developing quality capabilities at scale
Demonstrated success designing, implementing, or transforming quality systems that improve consistency, accountability, and execution without creating unnecessary bureaucracy
Strong knowledge of quality engineering principles and tools including supplier quality, nonconformance management, MRB, CAPA, FMEA, root cause analysis, inspection planning, and statistical problem-solving with the ability to influence cross-functional teams and drive durable results
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nBuild and lead Helion's quality function from the ground up, creating the people, systems, standards, and operating rhythms needed to deliver first-of-a-kind fusion hardware with repeatable, measurable, and scalable quality.\n\nThis isn't a role focused on maintaining an existing quality system. It's an opportunity for a hands-on leader to design and build one. You'll establish the quality strategy, processes, and culture that enable Helion to move quickly while ensuring quality is built into every stage of the hardware lifecycle.\n\nYou'll partner closely with Engineering, Manufacturing, Supply Chain, Operations, and Test to prevent defects before they occur, identify and mitigate risk, solve complex problems at their root cause, and continuously improve execution as we scale toward commercial fusion power.\n\nThis is an onsite role reporting to the Director of Operational Excellence and is based in Everett, WA.\n\nYou Will:\n\n - Build and lead Helion’s quality organization across Quality Engineering, Supplier Quality, Inspection, and Quality Systems\n\n - Hire, develop, and mentor a high-performing technical team that promotes ownership, continuous learning, and operational excellence\n\n - Design and scale practical quality systems, processes, standards, inspection strategies, traceability, and metrics that support speed and rigor\n\n - Own quality execution across the hardware lifecycle, including nonconformance management, MRB, CAPA, supplier quality, root cause analysis, and continuous improvement\n\n - Partner with Engineering, Manufacturing, Supply Chain, Operations, and Test to build quality in early, improve process capability, reduce defects, and increase first-pass yield\n\n - Foster a culture where quality is everyone’s responsibility, using structured problem-solving and data-driven decisions to identify risk and support Helion’s growth from prototype to commercial-scale production\n\nRequired Skills:\n\n - Bachelor's degree in Engineering, Manufacturing, Quality, or a related technical field\n\n - 7+ years of experience in quality, manufacturing, supplier quality, hardware engineering, production engineering, or a related discipline, including experience in complex hardware environments\n\n - 3+ years of experience building and leading high-performing technical teams and developing quality capabilities at scale\n\n - Demonstrated success designing, implementing, or transforming quality systems that improve consistency, accountability, and execution without creating unnecessary bureaucracy\n\n - Strong knowledge of quality engineering principles and tools including supplier quality, nonconformance management, MRB, CAPA, FMEA, root cause analysis, inspection planning, and statistical problem-solving with the ability to influence cross-functional teams and drive durable results\n\n#LI-Onsite\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"8757830e-49ee-4309-af0d-3bf6c33afc6b","title":"Senior Director of Build","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-10T16:09:09.157+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/8757830e-49ee-4309-af0d-3bf6c33afc6b","applyUrl":"https://jobs.ashbyhq.com/helion/8757830e-49ee-4309-af0d-3bf6c33afc6b/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
We are hiring a Senior Director of Build to lead the manufacturing and assembly of Helion's fusion generators and subscale plasma devices. You will mentor experienced leaders, create strategic plans, and personally accelerate our transition from rapid prototyping to scalable, repeatable generator manufacturing while establishing the production, construction, commissioning, and field service capabilities required to deploy and support a national fleet of fusion power plants. You will report directly to our VP of Operations/Engineering at our Everett, WA office.
You Will
Directly manage the leaders of Helion's Build Team: Integration, Magnet Assembly, Fabrication, and Machining.
Work with Helion's executive leaders to establish goals for the Production organization that align with company strategy and take full ownership of delivering against those objectives.
Mentor production managers and supervisors on headcount planning, work center design, technician hiring and training, milestone planning, rate-based production goals, and performance management.
Build strategic machine shop capabilities (mills, lathes, water jets, dimensional inspection) to support rapid prototyping, near-term milestone execution, and long-term manufacturing scalability.
Establish partnerships and operating processes with Engineering, Operations, Supply Chain, Contracting, Materials Management, Logistics, Inventory, and Program Management teams to improve production planning, material flow, scheduling, and execution.
Provide design-for-manufacturability (DFM) feedback to Engineering to improve manufacturability, cost, quality, reliability, and long-term serviceability of Helion's products.
Develop Helion's long-term manufacturing strategy, including make-versus-buy decisions, capital investment planning, and strategic contract manufacturing partnerships to optimize cost, flexibility, speed to deployment, and capital efficiency.
Build and oversee partnerships with general contractors (GCs), EPC firms, specialty fabricators, and regional trade partners to execute generator construction and commissioning activities while maintaining consistent quality, schedule, and safety performance.
Own the team that integrates and builds the world's first fusion power plant in Malaga, Washington
Required Skills
10+ years of progressive leadership in advanced manufacturing, industrial production, energy, aerospace, heavy equipment, or other complex capital equipment industries.
Proven success building and scaling high-performing engineering and manufacturing organizations, from rapid hardware prototyping through high-volume, rate-based production.
Extensive experience leading end-to-end (cradle-to-grave) engineering and manufacturing programs, driving operational growth and production excellence.
Demonstrated cross-functional leadership in production planning, capacity management, and collaboration with Supply Chain, Engineering, Program Management, Logistics, Materials, Inventory, and Contracting teams.
Strong business and technical foundation, including financial and operational management (CapEx, manufacturing costs, productivity, KPIs), with a bachelor's degree in engineering, Manufacturing, Operations, or a related technical field (or equivalent experience).
#LI-Onsite #LI-MT1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing\n\nWe are hiring a Senior Director of Build to lead the manufacturing and assembly of Helion's fusion generators and subscale plasma devices. You will mentor experienced leaders, create strategic plans, and personally accelerate our transition from rapid prototyping to scalable, repeatable generator manufacturing while establishing the production, construction, commissioning, and field service capabilities required to deploy and support a national fleet of fusion power plants. You will report directly to our VP of Operations/Engineering at our Everett, WA office.\n\n\n\nYou Will\n\n - Directly manage the leaders of Helion's Build Team: Integration, Magnet Assembly, Fabrication, and Machining. \n\n - Work with Helion's executive leaders to establish goals for the Production organization that align with company strategy and take full ownership of delivering against those objectives. \n\n - Mentor production managers and supervisors on headcount planning, work center design, technician hiring and training, milestone planning, rate-based production goals, and performance management. \n\n - Build strategic machine shop capabilities (mills, lathes, water jets, dimensional inspection) to support rapid prototyping, near-term milestone execution, and long-term manufacturing scalability. \n\n - Establish partnerships and operating processes with Engineering, Operations, Supply Chain, Contracting, Materials Management, Logistics, Inventory, and Program Management teams to improve production planning, material flow, scheduling, and execution. \n\n - Provide design-for-manufacturability (DFM) feedback to Engineering to improve manufacturability, cost, quality, reliability, and long-term serviceability of Helion's products. \n\n - Develop Helion's long-term manufacturing strategy, including make-versus-buy decisions, capital investment planning, and strategic contract manufacturing partnerships to optimize cost, flexibility, speed to deployment, and capital efficiency. \n\n - Build and oversee partnerships with general contractors (GCs), EPC firms, specialty fabricators, and regional trade partners to execute generator construction and commissioning activities while maintaining consistent quality, schedule, and safety performance. \n\n - Own the team that integrates and builds the world's first fusion power plant in Malaga, Washington\n\n\n\nRequired Skills\n\n - 10+ years of progressive leadership in advanced manufacturing, industrial production, energy, aerospace, heavy equipment, or other complex capital equipment industries. \n\n - Proven success building and scaling high-performing engineering and manufacturing organizations, from rapid hardware prototyping through high-volume, rate-based production. \n\n - Extensive experience leading end-to-end (cradle-to-grave) engineering and manufacturing programs, driving operational growth and production excellence. \n\n - Demonstrated cross-functional leadership in production planning, capacity management, and collaboration with Supply Chain, Engineering, Program Management, Logistics, Materials, Inventory, and Contracting teams. \n\n - Strong business and technical foundation, including financial and operational management (CapEx, manufacturing costs, productivity, KPIs), with a bachelor's degree in engineering, Manufacturing, Operations, or a related technical field (or equivalent experience). \n\n#LI-Onsite #LI-MT1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"b47c6a96-3eaa-4de8-b8bf-d5ad960a0ab8","title":"Manager, Nuclear Engineering","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-14T00:28:44.123+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b47c6a96-3eaa-4de8-b8bf-d5ad960a0ab8","applyUrl":"https://jobs.ashbyhq.com/helion/b47c6a96-3eaa-4de8-b8bf-d5ad960a0ab8/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will lead the Nuclear Engineering team that comprises neutronics, nuclear diagnostics and general nuclear engineering. You will report to the Director of Plasma and Nuclear Science team in this onsite role located at our Everett, WA office.
You Will:
Manage, develop, and assist the subject matter experts responsible for quantifying fusion yield via nuclear diagnostics and simulating radiation environments using neutronics simulation codes
Own and manage the delivery of Helion’s nuclear engineering needs such as shielding design, activation analysis, dose estimation, and diagnostic development
Manage the performance of nuclear engineers and conduct hiring actions to build the team as scope demands
Translate annual goals into objective tasks and manage month-to-month planning towards completing goals and objectives
Drive schedule ownership to accelerate the completion of milestones
Required Skills:
3+ years of experience managing a nuclear-engineering-related technical team that delivered a high-impact final product, expanding a talent-dense team via a hiring process and owning the schedule for a critical path facet of a milestone project
Experience performing neutronics simulations using MCNP as demonstrated via implementing variance reduction techniques and performing simulation-measurement verification for moderately complex geometries
Hands-on experience handling radioactive material including neutron sources (e.g., Cf-252, AmBe, neutron generators), and experience operating diagnostic detectors (e.g., scintillators, He-3, activation foils)
Successful and autonomous mentorship of employees of a wide range of expertise, experience, and backgrounds, demonstrated e.g., via several performance review cycles and successful coaching of direct reports
Fluent in some people management systems (e.g., recruiting, timecard management, spend approval, and performance reviews) and applying company policies as described in an employee handbook
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\nWhat You Will Be Doing:\n\nYou will lead the Nuclear Engineering team that comprises neutronics, nuclear diagnostics and general nuclear engineering. You will report to the Director of Plasma and Nuclear Science team in this onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Manage, develop, and assist the subject matter experts responsible for quantifying fusion yield via nuclear diagnostics and simulating radiation environments using neutronics simulation codes\n\n - Own and manage the delivery of Helion’s nuclear engineering needs such as shielding design, activation analysis, dose estimation, and diagnostic development\n\n - Manage the performance of nuclear engineers and conduct hiring actions to build the team as scope demands\n\n - Translate annual goals into objective tasks and manage month-to-month planning towards completing goals and objectives\n\n - Drive schedule ownership to accelerate the completion of milestones\n\nRequired Skills:\n\n - 3+ years of experience managing a nuclear-engineering-related technical team that delivered a high-impact final product, expanding a talent-dense team via a hiring process and owning the schedule for a critical path facet of a milestone project\n\n - Experience performing neutronics simulations using MCNP as demonstrated via implementing variance reduction techniques and performing simulation-measurement verification for moderately complex geometries\n\n - Hands-on experience handling radioactive material including neutron sources (e.g., Cf-252, AmBe, neutron generators), and experience operating diagnostic detectors (e.g., scintillators, He-3, activation foils)\n\n - Successful and autonomous mentorship of employees of a wide range of expertise, experience, and backgrounds, demonstrated e.g., via several performance review cycles and successful coaching of direct reports\n\n - Fluent in some people management systems (e.g., recruiting, timecard management, spend approval, and performance reviews) and applying company policies as described in an employee handbook\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"cba60be8-430b-4f1c-8fb0-c3e79a43606f","title":"R&D Engineer - Fusion Generator Operations","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-21T19:51:28.095+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/cba60be8-430b-4f1c-8fb0-c3e79a43606f","applyUrl":"https://jobs.ashbyhq.com/helion/cba60be8-430b-4f1c-8fb0-c3e79a43606f/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will help operate and advance the most powerful, pulsed-fusion device ever constructed to generate electrical power. As a member of the Research and Development team, you will play a critical role in the safe, reliable, and repeatable operation of high-energy fusion systems. You will contribute to the execution of fusion experiments, system readiness, and continuous improvement of machine performance.
You Will:
Operate and support the day-to-day execution of Field-Reversed Configuration (FRC) fusion experiments, ensuring safe and repeatable machine performance
Control and monitor pulsed power systems, including mega-joule capacitor banks and high-energy infrastructure, with a focus on operational reliability and readiness
Own system readiness for experiments, including pre-shot setup, system checks, troubleshooting, and analysis
Identify, diagnose, and resolve issues in high-energy and large-scale vacuum systems to minimize downtime and improve operational efficiency
Apply plasma physics concepts to support experiment execution and interpret diagnostics for magnetic fields, fusion products, and plasma characteristics
Drive continuous improvement of machine operations, including refining procedures, improving system robustness, and reducing variability in experimental results
Collaborate cross-functionally with engineering, science, and production teams to improve system performance and operational throughput
Required Skills:
B.S. with 4+ years of relevant experience, or M.S. with 2+ years of relevant experience in Aerospace, Mechanical Engineering, Physics, or a related field
Extensive hands-on experience operating, maintaining, or improving high-vacuum chamber systems or high-voltage capacitor systems
Experience owning system uptime, reliability, and performance, including troubleshooting and root cause analysis
Proven experience executing complex experiments or operations with a focus on repeatability, safety, and continuous improvement
Demonstrated ability to rapidly learn new technologies and take ownership of operational systems
Strong problem-solving skills and ability to respond effectively to real-time issues with minimal supervision
Proven ability to collaborate effectively within a team and contribute to a high-performance operational environment
Experience mentoring or training others in system operation is a plus
#LI-Onsite #LI-IB1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will help operate and advance the most powerful, pulsed-fusion device ever constructed to generate electrical power. As a member of the Research and Development team, you will play a critical role in the safe, reliable, and repeatable operation of high-energy fusion systems. You will contribute to the execution of fusion experiments, system readiness, and continuous improvement of machine performance.\n\nYou Will:\n\n - Operate and support the day-to-day execution of Field-Reversed Configuration (FRC) fusion experiments, ensuring safe and repeatable machine performance\n\n - Control and monitor pulsed power systems, including mega-joule capacitor banks and high-energy infrastructure, with a focus on operational reliability and readiness\n\n - Own system readiness for experiments, including pre-shot setup, system checks, troubleshooting, and analysis\n\n - Identify, diagnose, and resolve issues in high-energy and large-scale vacuum systems to minimize downtime and improve operational efficiency\n\n - Apply plasma physics concepts to support experiment execution and interpret diagnostics for magnetic fields, fusion products, and plasma characteristics\n\n - Drive continuous improvement of machine operations, including refining procedures, improving system robustness, and reducing variability in experimental results\n\n - Collaborate cross-functionally with engineering, science, and production teams to improve system performance and operational throughput\n\nRequired Skills:\n\n - B.S. with 4+ years of relevant experience, or M.S. with 2+ years of relevant experience in Aerospace, Mechanical Engineering, Physics, or a related field\n\n - Extensive hands-on experience operating, maintaining, or improving high-vacuum chamber systems or high-voltage capacitor systems\n\n - Experience owning system uptime, reliability, and performance, including troubleshooting and root cause analysis\n\n - Proven experience executing complex experiments or operations with a focus on repeatability, safety, and continuous improvement\n\n - Demonstrated ability to rapidly learn new technologies and take ownership of operational systems\n\n - Strong problem-solving skills and ability to respond effectively to real-time issues with minimal supervision\n\n - Proven ability to collaborate effectively within a team and contribute to a high-performance operational environment\n\n - Experience mentoring or training others in system operation is a plus\n\n#LI-Onsite #LI-IB1\n\n \n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"b459ceac-bf0f-4b87-8557-5579ddb26900","title":"Director of Engineering, Modules ","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-17T15:28:57.412+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b459ceac-bf0f-4b87-8557-5579ddb26900","applyUrl":"https://jobs.ashbyhq.com/helion/b459ceac-bf0f-4b87-8557-5579ddb26900/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
The capacitor bank is the beating heart of a Helion machine: it stores the energy for every fusion pulse, delivers it in under a millisecond, and takes it back. You will own the organization that architects, designs, qualifies, and produces hardware for Orion, our first fusion power plant.
You Will:
Own the architecture of Orion's capacitor bank and its interdependencies with the machine core: requirements, decomposition, and the interfaces that let the bank, core, and controls behave as one machine
Lead and mentor a cross-functional team of electrical and mechanical engineers designing and qualifying pulsed power circuit modules for each section of the machine with ownership spanning pulsed power electrical design, mechanical and thermal solutions, and the high precision low voltage control interfaces that command them
Drive manufacturable design: partner day-to-day with manufacturing engineering to move modules from prototype test to production at rate, against a capacitor line building megajoules of pulsed power energy capacity per week
Own cost, schedule, and reliability for the module portfolio: make the architecture and design trades, set the qualification bar for hardware that must survive million-pulse campaigns and be accountable for hitting the objectives on a schedule you influenced
Work day-to-day with Research, Science, and Controls to keep module designs ahead of what the physics and operations teams learn from running machines
Build the team: hire, develop, and set the design-review and engineering standards that let the organization move from prototype to production without losing rigor
In your first year, you will baseline the Orion bank architecture, stand up the qualification program for the first production modules, and have production-intent hardware under test.
Required Skills
Bachelor's or master's degree in Electrical Engineering, Mechanical Engineering, Physics, or a related field
10+ years developing complex electromechanical hardware, including 4+ years leading multidisciplinary engineering teams (Electrical, Mechanical, Firmware, Thermal)
A track record of taking hardware from prototype through qualification into production, and of the design-for-manufacture judgment that makes that transition fast
Technical depth in at least one of: power electronics or pulsed energy systems, high-reliability electromechanical design, or high-volume hardware production with fluency across the others
Demonstrated ownership of cost, schedule, and reliability at program scale, including making and defending hard trades
Cross-functional leadership strength: this role succeeds through tactical and strategic partnership with research, science, controls, and manufacturing
Experience scaling engineering teams and processes through a prototype-to-production transition
#LI-Onsite #LI-MT1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \n\n\nThe capacitor bank is the beating heart of a Helion machine: it stores the energy for every fusion pulse, delivers it in under a millisecond, and takes it back. You will own the organization that architects, designs, qualifies, and produces hardware for Orion, our first fusion power plant.\n\n \nYou Will:\n\n - Own the architecture of Orion's capacitor bank and its interdependencies with the machine core: requirements, decomposition, and the interfaces that let the bank, core, and controls behave as one machine\n\n - Lead and mentor a cross-functional team of electrical and mechanical engineers designing and qualifying pulsed power circuit modules for each section of the machine with ownership spanning pulsed power electrical design, mechanical and thermal solutions, and the high precision low voltage control interfaces that command them\n\n - Drive manufacturable design: partner day-to-day with manufacturing engineering to move modules from prototype test to production at rate, against a capacitor line building megajoules of pulsed power energy capacity per week\n\n - Own cost, schedule, and reliability for the module portfolio: make the architecture and design trades, set the qualification bar for hardware that must survive million-pulse campaigns and be accountable for hitting the objectives on a schedule you influenced\n\n - Work day-to-day with Research, Science, and Controls to keep module designs ahead of what the physics and operations teams learn from running machines\n\n - Build the team: hire, develop, and set the design-review and engineering standards that let the organization move from prototype to production without losing rigor\n\n - In your first year, you will baseline the Orion bank architecture, stand up the qualification program for the first production modules, and have production-intent hardware under test.\n\n \nRequired Skills\n\n - Bachelor's or master's degree in Electrical Engineering, Mechanical Engineering, Physics, or a related field\n\n - 10+ years developing complex electromechanical hardware, including 4+ years leading multidisciplinary engineering teams (Electrical, Mechanical, Firmware, Thermal)\n\n - A track record of taking hardware from prototype through qualification into production, and of the design-for-manufacture judgment that makes that transition fast\n\n - Technical depth in at least one of: power electronics or pulsed energy systems, high-reliability electromechanical design, or high-volume hardware production with fluency across the others\n\n - Demonstrated ownership of cost, schedule, and reliability at program scale, including making and defending hard trades\n\n - Cross-functional leadership strength: this role succeeds through tactical and strategic partnership with research, science, controls, and manufacturing\n\n - Experience scaling engineering teams and processes through a prototype-to-production transition\n\n\n\n#LI-Onsite #LI-MT1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"41cb7e9a-04c5-4ae9-a53d-c9dab0e23ea1","title":"Director of Talent Acquisition","department":"People","team":"People","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-17T17:33:05.663+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/41cb7e9a-04c5-4ae9-a53d-c9dab0e23ea1","applyUrl":"https://jobs.ashbyhq.com/helion/41cb7e9a-04c5-4ae9-a53d-c9dab0e23ea1/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As the Director of Talent Acquisition, you will define and advance the talent acquisition strategy behind Helion's mission to fully satisfy the world's need for clean, abundant energy. You will lead teams across all industry recruiting efforts - from niche technical roles to business functions and non-exempt populations - as well as executive recruiting, talent sourcing, and talent operations and programs. You will report to the Senior Director of Talent and People Operations. This is an onsite role located at our Everett, WA location.
You Will:
Lead the talent acquisition team across executive recruiting, industry hiring, talent operations, and key talent programs
Own recruiting outcomes for niche technical roles across engineering, materials, nuclear, plasma physics and R&D, in addition to non-exempt hiring for our production and manufacturing teams and business functions
Build scalable recruiting systems, operating rhythms, and performance metrics that enable the organization to hire efficiently as the company grows
Work directly with technical leadership to ensure that Talent operates as a credible, trusted partner to the teams building and operating our fusion generators
Collaborate with Finance on workforce planning - translating growth plans into headcount forecasts, hiring budgets, and hiring capacity across the company
Drive talent branding efforts with Communications that build durable candidate pipelines and position Helion as the employer of choice for top talent
Introduce innovative approaches to attract, engage, and close top technical talent, giving Helion the edge in the most competitive searches
Stay on top of the latest AI tools, building workflows and automations that give every member of the team higher leverage in their work
Required Skills:
12+ years of relevant talent acquisition experience, including 5+ years leading talent teams and experience as a manager of managers
Demonstrated success across multiple hiring domains: niche technical and engineering, production and manufacturing, business, executive, early career, and non-exempt workforce
Expertise in talent operations, directly building systems and processes that enable teams to hire the best talent with urgency and rigor
Highly analytical, with a track record of using funnel data, market intelligence, and hiring metrics to drive decisions and hold the organization accountable to outcomes
Experience developing employer brand and recruitment marketing strategies that measurably strengthen talent pipelines
Proven ability to partner with critical stakeholders (Finance, Communications, People Operations, People Business Partners, etc.) to align hiring plans with business strategy
Experience building and scaling talent acquisition functions in a high-growth startup or rapidly scaling technology company
#LI-Onsite #LI-MT1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\n\n\nAs the Director of Talent Acquisition, you will define and advance the talent acquisition strategy behind Helion's mission to fully satisfy the world's need for clean, abundant energy. You will lead teams across all industry recruiting efforts - from niche technical roles to business functions and non-exempt populations - as well as executive recruiting, talent sourcing, and talent operations and programs. You will report to the Senior Director of Talent and People Operations. This is an onsite role located at our Everett, WA location.\n\n\n\nYou Will:\n\n - Lead the talent acquisition team across executive recruiting, industry hiring, talent operations, and key talent programs\n\n - Own recruiting outcomes for niche technical roles across engineering, materials, nuclear, plasma physics and R&D, in addition to non-exempt hiring for our production and manufacturing teams and business functions\n\n - Build scalable recruiting systems, operating rhythms, and performance metrics that enable the organization to hire efficiently as the company grows\n\n - Work directly with technical leadership to ensure that Talent operates as a credible, trusted partner to the teams building and operating our fusion generators\n\n - Collaborate with Finance on workforce planning - translating growth plans into headcount forecasts, hiring budgets, and hiring capacity across the company\n\n - Drive talent branding efforts with Communications that build durable candidate pipelines and position Helion as the employer of choice for top talent\n\n - Introduce innovative approaches to attract, engage, and close top technical talent, giving Helion the edge in the most competitive searches\n\n - Stay on top of the latest AI tools, building workflows and automations that give every member of the team higher leverage in their work\n\n\n\nRequired Skills:\n\n - 12+ years of relevant talent acquisition experience, including 5+ years leading talent teams and experience as a manager of managers\n\n - Demonstrated success across multiple hiring domains: niche technical and engineering, production and manufacturing, business, executive, early career, and non-exempt workforce\n\n - Expertise in talent operations, directly building systems and processes that enable teams to hire the best talent with urgency and rigor\n\n - Highly analytical, with a track record of using funnel data, market intelligence, and hiring metrics to drive decisions and hold the organization accountable to outcomes\n\n - Experience developing employer brand and recruitment marketing strategies that measurably strengthen talent pipelines\n\n - Proven ability to partner with critical stakeholders (Finance, Communications, People Operations, People Business Partners, etc.) to align hiring plans with business strategy\n\n - Experience building and scaling talent acquisition functions in a high-growth startup or rapidly scaling technology company\n\n#LI-Onsite #LI-MT1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"e4b32a69-c550-4e2c-934d-6f7fc1b764ef","title":"Senior Mechanical Engineer, Vacuum Systems","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-30T21:00:38.728+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e4b32a69-c550-4e2c-934d-6f7fc1b764ef","applyUrl":"https://jobs.ashbyhq.com/helion/e4b32a69-c550-4e2c-934d-6f7fc1b764ef/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own hardware designs for systems related to vacuum systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report to the Senior Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.
You Will:
Own design of novel high-vacuum system for pulsed fusion generator and prototype
Drive system definition from requirements derivation, high-level CONOPs, P&ID and component selection through hardware commissioning
Perform analysis with in-house and out-of-house tools and hold design reviews to gather feedback and iterate to a fully functioning system
Work hands-on alongside experienced technicians to implement your hardware designs
Work cross-functionally to negotiate interfaces with other fusion generator subsystems
Learn from experts to expand your engineering skillset and domain knowledge
Troubleshoot hardware issues as they arise on integrated fusion generators
Required Skills:
Bachelor's degree in engineering
5+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, controls)
Experience using CAD software (e.g. NX, Solidworks)
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own hardware designs for systems related to vacuum systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report to the Senior Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.\n\n\n\nYou Will:\n\n - Own design of novel high-vacuum system for pulsed fusion generator and prototype\n\n - Drive system definition from requirements derivation, high-level CONOPs, P&ID and component selection through hardware commissioning\n\n - Perform analysis with in-house and out-of-house tools and hold design reviews to gather feedback and iterate to a fully functioning system\n\n - Work hands-on alongside experienced technicians to implement your hardware designs\n\n - Work cross-functionally to negotiate interfaces with other fusion generator subsystems\n\n - Learn from experts to expand your engineering skillset and domain knowledge\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 5+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, controls)\n\n - Experience using CAD software (e.g. NX, Solidworks)\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"3969dbcd-116f-41ed-ba7d-13405a917c02","title":"Mechanical Engineer, Vacuum Systems","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-07-30T21:00:41.118+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3969dbcd-116f-41ed-ba7d-13405a917c02","applyUrl":"https://jobs.ashbyhq.com/helion/3969dbcd-116f-41ed-ba7d-13405a917c02/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own hardware designs for systems related to vacuum systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report to the Senior Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.
You Will:
Own design of novel high-vacuum system for pulsed fusion generator and prototype
Drive system definition from requirements derivation, high-level CONOPs, P&ID and component selection through hardware commissioning
Perform analysis with in-house and out-of-house tools and hold design reviews to gather feedback and iterate to a fully functioning system
Work hands-on alongside experienced technicians to implement your hardware designs
Work cross-functionally to negotiate interfaces with other fusion generator subsystems
Learn from experts to expand your engineering skillset and domain knowledge
Troubleshoot hardware issues as they arise on integrated fusion generators
Required Skills:
Bachelor's degree in engineering
3+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, controls)
Experience using CAD software (e.g. NX, Solidworks)
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nYou will own hardware designs for systems related to vacuum systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report to the Senior Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.\n\n\n\nYou Will:\n\n - Own design of novel high-vacuum system for pulsed fusion generator and prototype\n\n - Drive system definition from requirements derivation, high-level CONOPs, P&ID and component selection through hardware commissioning\n\n - Perform analysis with in-house and out-of-house tools and hold design reviews to gather feedback and iterate to a fully functioning system\n\n - Work hands-on alongside experienced technicians to implement your hardware designs\n\n - Work cross-functionally to negotiate interfaces with other fusion generator subsystems\n\n - Learn from experts to expand your engineering skillset and domain knowledge\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 3+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, controls)\n\n - Experience using CAD software (e.g. NX, Solidworks)\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"9c65be39-b245-44c2-ac2b-8a75a8e4e853","title":"Manager of Multistate Public Affairs","department":"Legal & Policy","team":"Legal & Policy","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-05T17:20:00.194+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/9c65be39-b245-44c2-ac2b-8a75a8e4e853","applyUrl":"https://jobs.ashbyhq.com/helion/9c65be39-b245-44c2-ac2b-8a75a8e4e853/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
We’re looking for a Manager of Multistate Public Affairs to join our Public Affairs team. This role will translate Helion’s multistate policy and business priorities into effective engagement with national and multistate organizations, policymakers, and other influential stakeholders. You will build the relationships, partnerships, and external support needed to advance policies that enable fusion energy and manufacturing across the United States.
You will report to the Senior Director of State & Local Affairs and work closely with policy, communications, technical, and project development teams. This role can be based in Everett, Washington; Washington, D.C.; or remotely within the United States and will require regular travel to stakeholder meetings, conferences, and priority states as Helion expands.
You Will:
Build and manage relationships with national and multi-state organizations, industry associations, and advocacy groups
Develop and maintain a stakeholder map across priority states, identifying key influencers and engagement opportunities
Lead strategy and execution for conferences, convenings, and external public affairs and policy forums, including personally managing preparation, participation, and follow-up, to ensure high-impact participation
Coordinate closely with state and regional leads to align stakeholder engagement with project and policy priorities
Partner with internal teams to ensure engagement efforts reinforce Helion’s policy positions and strategic narrative
Represent Helion in meetings, working groups, and external forums, including engagements with senior government officials, national associations, and organizational leaders, to advance company priorities
Required Skills:
7+ years of experience in government affairs, public affairs, policy, or stakeholder engagement
Experience working across multiple states or at the national level with policy, regulatory, or political stakeholders
Proven ability to build and manage relationships with senior external stakeholders and credibly represent an organization in high-level external settings
Strong political judgment and ability to prioritize high-impact engagement opportunities
Excellent presentation, public-speaking, communication and coordination skills across cross-functional teams
Willingness to travel regularly, approximately 25%, to support stakeholder engagement and company priorities
#LI-Onsite #LI-MM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n\n\nWe’re looking for a Manager of Multistate Public Affairs to join our Public Affairs team. This role will translate Helion’s multistate policy and business priorities into effective engagement with national and multistate organizations, policymakers, and other influential stakeholders. You will build the relationships, partnerships, and external support needed to advance policies that enable fusion energy and manufacturing across the United States.\n\nYou will report to the Senior Director of State & Local Affairs and work closely with policy, communications, technical, and project development teams. This role can be based in Everett, Washington; Washington, D.C.; or remotely within the United States and will require regular travel to stakeholder meetings, conferences, and priority states as Helion expands.\n\nYou Will:\n\n - Build and manage relationships with national and multi-state organizations, industry associations, and advocacy groups\n\n - Develop and maintain a stakeholder map across priority states, identifying key influencers and engagement opportunities\n\n - Lead strategy and execution for conferences, convenings, and external public affairs and policy forums, including personally managing preparation, participation, and follow-up, to ensure high-impact participation\n\n - Coordinate closely with state and regional leads to align stakeholder engagement with project and policy priorities\n\n - Partner with internal teams to ensure engagement efforts reinforce Helion’s policy positions and strategic narrative\n\n - Represent Helion in meetings, working groups, and external forums, including engagements with senior government officials, national associations, and organizational leaders, to advance company priorities\n\nRequired Skills:\n\n - 7+ years of experience in government affairs, public affairs, policy, or stakeholder engagement \n\n - Experience working across multiple states or at the national level with policy, regulatory, or political stakeholders \n\n - Proven ability to build and manage relationships with senior external stakeholders and credibly represent an organization in high-level external settings\n\n - Strong political judgment and ability to prioritize high-impact engagement opportunities \n\n - Excellent presentation, public-speaking, communication and coordination skills across cross-functional teams \n\n - Willingness to travel regularly, approximately 25%, to support stakeholder engagement and company priorities \n\n#LI-Onsite #LI-MM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"f094a448-3e71-47f1-b8c2-ca85bf9ac58d","title":"Quality Inspector, Receiving and MRB","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-05T21:56:51.597+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/f094a448-3e71-47f1-b8c2-ca85bf9ac58d","applyUrl":"https://jobs.ashbyhq.com/helion/f094a448-3e71-47f1-b8c2-ca85bf9ac58d/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
As a Quality Inspector (Receiving & MRB), you'll play a critical role in ensuring that incoming supplier materials and internally manufactured hardware meet Helion's engineering and quality standards before entering production.
You'll perform receiving, first-piece, in-process, and final inspections, verify dimensional and documentation requirements, maintain product traceability, and support the control of nonconforming material through Helion's Material Review Board (MRB) process.
Working closely with Manufacturing, the Machine Shop, Engineering, Receiving, Supplier Quality, Sourcing, and Warehousing, you'll help protect product quality while enabling the efficient flow of material needed to build reliable fusion generators.
This role is responsible for identifying and documenting quality issues, preparing material for MRB review, and executing approved dispositions. Engineering and the Material Review Board retain authority for disposition decisions. This is an onsite role that reports directly to the Inspection Supervisor at our Everett location.
You Will:
Inspect incoming supplier materials and internally manufactured hardware by performing receiving, first-piece, in-process, and final inspections to ensure compliance with engineering drawings, specifications, and quality requirements
Perform dimensional inspections and maintain traceability by interpreting engineering drawings, using precision measurement tools, documenting inspection results, and verifying material certifications and product records
Control nonconforming material by identifying quality issues, placing material on quality hold, initiating nonconformance records, and preparing documentation for Material Review Board (MRB) review
Support the MRB process by providing inspection data and product history, then executing approved dispositions—including rework, repair, return to supplier, or scrap while recognizing that Engineering and the MRB retain disposition authority
Partner across Manufacturing, Machine Shop, Engineering, Receiving, Supplier Quality, and Sourcing to resolve quality issues, improve inspection processes, and drive continuous improvement throughout manufacturing
Required Qualifications
2+ years of quality inspection experience in manufacturing or another technical production environment
Experience inspecting precision machined or electromechanical components using standard dimensional inspection equipment
Ability to read and interpret engineering drawings, GD&T, specifications, and technical documentation
Experience identifying, documenting, and controlling nonconforming material while maintaining accurate inspection records and traceability
Strong communication, attention to detail, and the ability to collaborate across manufacturing, engineering, and supply chain teams in a fast-paced environment
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing: \nAs a Quality Inspector (Receiving & MRB), you'll play a critical role in ensuring that incoming supplier materials and internally manufactured hardware meet Helion's engineering and quality standards before entering production.\n\nYou'll perform receiving, first-piece, in-process, and final inspections, verify dimensional and documentation requirements, maintain product traceability, and support the control of nonconforming material through Helion's Material Review Board (MRB) process.\n\nWorking closely with Manufacturing, the Machine Shop, Engineering, Receiving, Supplier Quality, Sourcing, and Warehousing, you'll help protect product quality while enabling the efficient flow of material needed to build reliable fusion generators.\n\nThis role is responsible for identifying and documenting quality issues, preparing material for MRB review, and executing approved dispositions. Engineering and the Material Review Board retain authority for disposition decisions. This is an onsite role that reports directly to the Inspection Supervisor at our Everett location.\n\nYou Will:\n\n - Inspect incoming supplier materials and internally manufactured hardware by performing receiving, first-piece, in-process, and final inspections to ensure compliance with engineering drawings, specifications, and quality requirements\n\n - Perform dimensional inspections and maintain traceability by interpreting engineering drawings, using precision measurement tools, documenting inspection results, and verifying material certifications and product records\n\n - Control nonconforming material by identifying quality issues, placing material on quality hold, initiating nonconformance records, and preparing documentation for Material Review Board (MRB) review\n\n - Support the MRB process by providing inspection data and product history, then executing approved dispositions—including rework, repair, return to supplier, or scrap while recognizing that Engineering and the MRB retain disposition authority\n\n - Partner across Manufacturing, Machine Shop, Engineering, Receiving, Supplier Quality, and Sourcing to resolve quality issues, improve inspection processes, and drive continuous improvement throughout manufacturing\n\nRequired Qualifications\n\n - 2+ years of quality inspection experience in manufacturing or another technical production environment\n\n - Experience inspecting precision machined or electromechanical components using standard dimensional inspection equipment\n\n - Ability to read and interpret engineering drawings, GD&T, specifications, and technical documentation\n\n - Experience identifying, documenting, and controlling nonconforming material while maintaining accurate inspection records and traceability\n\n - Strong communication, attention to detail, and the ability to collaborate across manufacturing, engineering, and supply chain teams in a fast-paced environment\n\n#LI-Onsite\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"d8872ba8-52f8-44dd-8613-951e1aaef821","title":"CMM Operator ","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-05T21:54:33.778+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/d8872ba8-52f8-44dd-8613-951e1aaef821","applyUrl":"https://jobs.ashbyhq.com/helion/d8872ba8-52f8-44dd-8613-951e1aaef821/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing
The CMM Operator is responsible for developing and maintaining Coordinate Measuring Machine (CMM) inspection programs, performing dimensional inspections on precision-machined components, and ensuring manufactured hardware meets engineering and quality requirements. You will support production and development efforts by creating robust inspection methods, operating metrology equipment, and collaborating closely with machinists, engineers, and build reliability personnel. This is an onsite role that reports directly to our Inspection Supervisor at our Everett, WA office.
You Will
Develop, validate, and maintain CMM inspection programs for new and existing parts using models, engineering drawings, and GD&T requirements
Work closely with NC programmers and Machinists to develop and support in-process inspection plans
Operate CMM equipment to perform first article, in-process, and final inspections of machined parts and assemblies
Interpret engineering drawings, specifications, and GD&T requirements to ensure accurate inspection methodologies and data validation
Perform manual dimensional inspections using precision measurement equipment such as calipers, micrometers, height gauges, bore gauges, indicators, and optical comparators
Generate and review inspection reports, documenting dimensional results and communicating findings to manufacturing and engineering teams
Collaborate with machinists and engineers to resolve dimensional nonconformances and improve manufacturing processes
Support root cause investigations and corrective actions related to dimensional quality issues
Maintain calibration and proper handling of metrology equipment to ensure measurement accuracy and repeatability
Assist in developing inspection plans, quality documentation, and standardized measurement procedures
Required Skills
Associate degree, technical certification, or equivalent years of experience
4+ years of experience programming and operating CMM equipment in a manufacturing or machining environment
Experience with CMM programming software (e.g., PC-DMIS, Calypso, or equivalent)
Strong understanding of GD&T and the ability to interpret complex engineering drawings and specifications
Proficiency with manual inspection tools and dimensional metrology techniques
Experience generating inspection reports and communicating results to manufacturing and engineering stakeholders
Ability to collaborate across manufacturing, engineering, and build reliability teams
Frequent standing, walking and movement in a machine shop environment
Regular handling of raw materials, parts, and tooling, including lifting up to 30lbs
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing\n\nThe CMM Operator is responsible for developing and maintaining Coordinate Measuring Machine (CMM) inspection programs, performing dimensional inspections on precision-machined components, and ensuring manufactured hardware meets engineering and quality requirements. You will support production and development efforts by creating robust inspection methods, operating metrology equipment, and collaborating closely with machinists, engineers, and build reliability personnel. This is an onsite role that reports directly to our Inspection Supervisor at our Everett, WA office.\n\nYou Will\n\n - Develop, validate, and maintain CMM inspection programs for new and existing parts using models, engineering drawings, and GD&T requirements \n\n - Work closely with NC programmers and Machinists to develop and support in-process inspection plans\n\n - Operate CMM equipment to perform first article, in-process, and final inspections of machined parts and assemblies\n\n - Interpret engineering drawings, specifications, and GD&T requirements to ensure accurate inspection methodologies and data validation\n\n - Perform manual dimensional inspections using precision measurement equipment such as calipers, micrometers, height gauges, bore gauges, indicators, and optical comparators\n\n - Generate and review inspection reports, documenting dimensional results and communicating findings to manufacturing and engineering teams\n\n - Collaborate with machinists and engineers to resolve dimensional nonconformances and improve manufacturing processes\n\n - Support root cause investigations and corrective actions related to dimensional quality issues\n\n - Maintain calibration and proper handling of metrology equipment to ensure measurement accuracy and repeatability\n\n - Assist in developing inspection plans, quality documentation, and standardized measurement procedures\n\nRequired Skills\n\n - Associate degree, technical certification, or equivalent years of experience \n\n - 4+ years of experience programming and operating CMM equipment in a manufacturing or machining environment\n\n - Experience with CMM programming software (e.g., PC-DMIS, Calypso, or equivalent)\n\n - Strong understanding of GD&T and the ability to interpret complex engineering drawings and specifications\n\n - Proficiency with manual inspection tools and dimensional metrology techniques\n\n - Experience generating inspection reports and communicating results to manufacturing and engineering stakeholders\n\n - Ability to collaborate across manufacturing, engineering, and build reliability teams\n\n - Frequent standing, walking and movement in a machine shop environment\n\n - Regular handling of raw materials, parts, and tooling, including lifting up to 30lbs\n\n#LI-Onsite\n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"cb703a2b-0b03-4366-8815-19840584c419","title":"Senior Manager, Software Engineering, Plant Control","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-17T19:40:24.435+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/cb703a2b-0b03-4366-8815-19840584c419","applyUrl":"https://jobs.ashbyhq.com/helion/cb703a2b-0b03-4366-8815-19840584c419/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
Why This Role Matters
A Fusion power plant only produces useful results if something can control it, observe it, and make sense of what it did. The means firmware on the controllers that fire the pulses, supervisory automation that coordinates the machine as a system, the network and infrastructure backbone, and data pipelines that capture events spanning nanoseconds to years. The machine and facility are first of their kind, which means the software is too.
You will lead and scale the team that builds it. This means more than just hiring the right people. It means establishing software engineering as a core functional discipline by creating processes that enable the team to do their best work and building the structure around how software and hardware teams interact at Helion.
What You Will Be Doing
Lead and grow the Plant Control Software team, a multidisciplinary team across firmware, application software, networking, infrastructure, and cybersecurity.
Own delivery of the plant control software stack across its embedded, supervisory, networking, and data layers.
Partner closely with electrical engineering, mechanical engineering, fuel cycle, systems engineering, operations, and science. Our software ships against hardware on a shared schedule and the coordination across those boundaries is a core responsibility.
Establish the engineering principles that will be the foundation for this team as it grows including how it plans, reviews, tests, deploys, responds to faults, and hands off to operations.
Required Skills
10+ years of experience building complex control systems for hardware 3+ years of experience in a leadership role building and managing a multidisciplinary software team (software engineers, firmware/embedded engineers, with a diversity of level from early career to senior).
Depth in real-time, embedded, or control software for physical systems, sufficient to hold technical direction with a senior team.
A track record of delivering software against hardware on a shared schedule in an environment where the hardware is the product.
Experience hiring, and growing engineers over time.
The ability to work fluently across disciplinary boundaries with electrical engineers, mechanical engineers, systems engineers, operators, and scientists.
A degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience.
#LI-Onsite #LI-RR1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhy This Role Matters\n\nA Fusion power plant only produces useful results if something can control it, observe it, and make sense of what it did. The means firmware on the controllers that fire the pulses, supervisory automation that coordinates the machine as a system, the network and infrastructure backbone, and data pipelines that capture events spanning nanoseconds to years. The machine and facility are first of their kind, which means the software is too.\n\nYou will lead and scale the team that builds it. This means more than just hiring the right people. It means establishing software engineering as a core functional discipline by creating processes that enable the team to do their best work and building the structure around how software and hardware teams interact at Helion.\n\nWhat You Will Be Doing\n\n - Lead and grow the Plant Control Software team, a multidisciplinary team across firmware, application software, networking, infrastructure, and cybersecurity.\n\n - Own delivery of the plant control software stack across its embedded, supervisory, networking, and data layers.\n\n - Partner closely with electrical engineering, mechanical engineering, fuel cycle, systems engineering, operations, and science. Our software ships against hardware on a shared schedule and the coordination across those boundaries is a core responsibility.\n\n - Establish the engineering principles that will be the foundation for this team as it grows including how it plans, reviews, tests, deploys, responds to faults, and hands off to operations.\n\nRequired Skills\n\n - 10+ years of experience building complex control systems for hardware 3+ years of experience in a leadership role building and managing a multidisciplinary software team (software engineers, firmware/embedded engineers, with a diversity of level from early career to senior).\n\n - Depth in real-time, embedded, or control software for physical systems, sufficient to hold technical direction with a senior team.\n\n - A track record of delivering software against hardware on a shared schedule in an environment where the hardware is the product.\n\n - Experience hiring, and growing engineers over time.\n\n - The ability to work fluently across disciplinary boundaries with electrical engineers, mechanical engineers, systems engineers, operators, and scientists.\n\n - A degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience.\n\n\n\n#LI-Onsite #LI-RR1\n\n \n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"3390a376-30db-4b32-b2a4-b56aa44e9679","title":"Mechanical Engineer, Fluids","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-18T19:58:37.256+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3390a376-30db-4b32-b2a4-b56aa44e9679","applyUrl":"https://jobs.ashbyhq.com/helion/3390a376-30db-4b32-b2a4-b56aa44e9679/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
You will own hardware designs for systems related to fluid systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.
You Will:
Own and understand designs related to fluids, thermal, and structural subsystems – and improve their requirements.
Learn from historical engineering approaches, design novel hardware, and test your solutions
Design fusion hardware within 3D CAD software (e.g. NX)
Perform analysis with in-house and out-of-house tools (e.g. ANSYS Fluent) and hold design reviews to gather feedback and iterate to a fully functioning system
Learn from experts to expand your engineering skillset and domain knowledge
Work hands-on alongside experienced technicians to implement your hardware designs
Troubleshoot hardware issues as they arise on integrated fusion generators
Required Skills:
Bachelor's degree in engineering
3+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
Experience applying engineering first-principles and method-based thinking to challenging problems
Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)
Advanced experience with CAD software (e.g. NX, Solidworks)
#LI-Onsite, #LI-AM1
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\n \n\nWhat You Will Be Doing:\n\nYou will own hardware designs for systems related to fluid systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. This role is onsite at our headquarters in Everett, WA.\n\nYou Will:\n\n - Own and understand designs related to fluids, thermal, and structural subsystems – and improve their requirements.\n\n - Learn from historical engineering approaches, design novel hardware, and test your solutions\n\n - Design fusion hardware within 3D CAD software (e.g. NX)\n\n - Perform analysis with in-house and out-of-house tools (e.g. ANSYS Fluent) and hold design reviews to gather feedback and iterate to a fully functioning system\n\n - Learn from experts to expand your engineering skillset and domain knowledge\n\n - Work hands-on alongside experienced technicians to implement your hardware designs\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 3+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)\n\n - Experience applying engineering first-principles and method-based thinking to challenging problems\n\n - Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)\n\n - Advanced experience with CAD software (e.g. NX, Solidworks)\n\n#LI-Onsite, #LI-AM1\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"244e0436-0b9a-459d-b1cd-0b5ba95c5610","title":"Category Manager, Technical Equipment","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-14T21:49:08.518+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/244e0436-0b9a-459d-b1cd-0b5ba95c5610","applyUrl":"https://jobs.ashbyhq.com/helion/244e0436-0b9a-459d-b1cd-0b5ba95c5610/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
Helion is seeking a seasoned Category Manager to lead the development and scaling of a world-class supply chain for the capital equipment that powers next-generation fusion energy systems. In this role, you will own strategic sourcing initiatives for the capital equipment and components critical to fusion energy production, from custom vacuum systems and power electronics to precision-machined assemblies and specialized manufacturing equipment. You will build and manage critical supplier relationships, drive cost and capacity strategies, and play a key role in enabling Helion's mission to deliver fusion energy at scale.
This is a high-impact, onsite role based in Everett, WA, reporting to the Director of Supply Chain.
You Will:
Own the capital equipment category, sourcing custom equipment, components, and assemblies required to produce fusion energy in collaboration with engineering, science teams, and production. Drive cost reductions and secure vendor capacity to support schedule and budget requirements.
Identify new capital equipment vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain for fusion-critical systems.
Lead bidding efforts for capital equipment purchases. Negotiate contract terms and manage existing contracts with vendors, including manufacturing service agreements, stocking programs, and non-disclosure agreements.
Develop and execute category strategies for capital equipment that align with fusion program milestones, balancing cost, lead time, and technical risk.
Lead initiatives and projects cross-functionally, partnering closely with engineering to translate technical requirements into sourcing and procurement plans.
Required Skills:
Bachelor’s degree in supply chain, business, engineering, or a related field, or equivalent professional experience.
10+ years of experience in strategic sourcing, category management, procurement, or supply chain, including 5+ years sourcing complex capital equipment or highly engineered systems.
Experience managing $100M+ in spend and executing category strategies across supplier selection, negotiation, contracting, delivery, and qualification.
Demonstrated success developing global suppliers and managing cost, capacity, lead-time, quality, and supply risks in an engineering-driven, R&D-to-production environment.
Strong commercial and cross-functional leadership skills, with experience negotiating complex agreements and partnering with engineering, manufacturing, finance, and program teams.
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nHelion is seeking a seasoned Category Manager to lead the development and scaling of a world-class supply chain for the capital equipment that powers next-generation fusion energy systems. In this role, you will own strategic sourcing initiatives for the capital equipment and components critical to fusion energy production, from custom vacuum systems and power electronics to precision-machined assemblies and specialized manufacturing equipment. You will build and manage critical supplier relationships, drive cost and capacity strategies, and play a key role in enabling Helion's mission to deliver fusion energy at scale.\n\nThis is a high-impact, onsite role based in Everett, WA, reporting to the Director of Supply Chain.\n\nYou Will:\n\n - Own the capital equipment category, sourcing custom equipment, components, and assemblies required to produce fusion energy in collaboration with engineering, science teams, and production. Drive cost reductions and secure vendor capacity to support schedule and budget requirements.\n\n - Identify new capital equipment vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain for fusion-critical systems.\n\n - Lead bidding efforts for capital equipment purchases. Negotiate contract terms and manage existing contracts with vendors, including manufacturing service agreements, stocking programs, and non-disclosure agreements.\n\n - Develop and execute category strategies for capital equipment that align with fusion program milestones, balancing cost, lead time, and technical risk.\n\n - Lead initiatives and projects cross-functionally, partnering closely with engineering to translate technical requirements into sourcing and procurement plans.\n\nRequired Skills:\n\n - Bachelor’s degree in supply chain, business, engineering, or a related field, or equivalent professional experience.\n\n - 10+ years of experience in strategic sourcing, category management, procurement, or supply chain, including 5+ years sourcing complex capital equipment or highly engineered systems.\n\n - Experience managing $100M+ in spend and executing category strategies across supplier selection, negotiation, contracting, delivery, and qualification.\n\n - Demonstrated success developing global suppliers and managing cost, capacity, lead-time, quality, and supply risks in an engineering-driven, R&D-to-production environment.\n\n - Strong commercial and cross-functional leadership skills, with experience negotiating complex agreements and partnering with engineering, manufacturing, finance, and program teams.\n\n\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."},{"id":"75f42db7-5dc6-4905-9ae1-6517d90bec06","title":"Senior Production Controller","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-08-20T00:14:54.489+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/75f42db7-5dc6-4905-9ae1-6517d90bec06","applyUrl":"https://jobs.ashbyhq.com/helion/75f42db7-5dc6-4905-9ae1-6517d90bec06/application","descriptionHtml":"About Helion
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.
This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.
What You Will Be Doing:
We are hiring a Production Controller to oversee the tool room and ensure our production teams have the equipment, parts, and consumables they need to keep operations running smoothly. You will manage inventory systems, coordinate with multiple departments, and implement processes that improve tool availability, traceability, and performance. This role is critical to reducing downtime, supporting efficient production, and contributing to the advancement of next-generation fusion energy solutions. This is an onsite role that reports directly to one of our Production Managers at our Everett, WA office.
You Will:
Manage tool room activities, including issuing, receiving, repairing, and maintaining tools and equipment
Establish and maintain accurate inventory records for all tools and non-inventory consumables using a computerized maintenance management system (CMMS) or ERP system
Ensure storage, labeling, and cataloging of tools and consumables for quick access and traceability
Monitor tool usage and wear, scheduling preventive maintenance or replacements
Coordinate with production teams to ensure tools and consumables availability to minimize downtime
Manage our vendor managed inventory system to maintain stock of consumables
Implement continuous improvement projects for inventory accuracy, tool performance, and storage efficiency
Enforce safety policies and proper handling procedures in the tool room
Required Skills:
Experience in tool room management, parts inventory control, or a related role in a manufacturing environment
Experience with hand tools, machinery components, and maintenance practices
Proficiency in inventory management systems and Microsoft Office
Experience coordinating with multiple departments
Ability to squat, reach, climb, and stand for extended periods of time, and lift up to 50lbs
#LI-Onsite
Benefits
Our total compensation package includes benefits, including but not limited to:
Medical, Dental, and Vision plans for employees and their families
31 Days of PTO (21 vacation days and 10 sick days)
10 Paid holidays, plus company-wide winter break
Up to 5% employer 401(k) match
Short term disability, long term disability, and life insurance
Paid parental leave and support (up to 16 weeks)
Annual wellness stipend
Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.
","descriptionPlain":"About Helion\n\nWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.\n\nSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.\n\nThis is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.\n\nWhat You Will Be Doing:\n\nWe are hiring a Production Controller to oversee the tool room and ensure our production teams have the equipment, parts, and consumables they need to keep operations running smoothly. You will manage inventory systems, coordinate with multiple departments, and implement processes that improve tool availability, traceability, and performance. This role is critical to reducing downtime, supporting efficient production, and contributing to the advancement of next-generation fusion energy solutions. This is an onsite role that reports directly to one of our Production Managers at our Everett, WA office.\n\nYou Will:\n\n - Manage tool room activities, including issuing, receiving, repairing, and maintaining tools and equipment\n\n - Establish and maintain accurate inventory records for all tools and non-inventory consumables using a computerized maintenance management system (CMMS) or ERP system\n\n - Ensure storage, labeling, and cataloging of tools and consumables for quick access and traceability\n\n - Monitor tool usage and wear, scheduling preventive maintenance or replacements\n\n - Coordinate with production teams to ensure tools and consumables availability to minimize downtime\n\n - Manage our vendor managed inventory system to maintain stock of consumables\n\n - Implement continuous improvement projects for inventory accuracy, tool performance, and storage efficiency\n\n - Enforce safety policies and proper handling procedures in the tool room\n\nRequired Skills:\n\n - Experience in tool room management, parts inventory control, or a related role in a manufacturing environment\n\n - Experience with hand tools, machinery components, and maintenance practices\n\n - Proficiency in inventory management systems and Microsoft Office\n\n - Experience coordinating with multiple departments\n\n - Ability to squat, reach, climb, and stand for extended periods of time, and lift up to 50lbs\n\n#LI-Onsite\n\nBenefits\n\nOur total compensation package includes benefits, including but not limited to:\n\n - Medical, Dental, and Vision plans for employees and their families \n\n - 31 Days of PTO (21 vacation days and 10 sick days) \n\n - 10 Paid holidays, plus company-wide winter break \n\n - Up to 5% employer 401(k) match \n\n - Short term disability, long term disability, and life insurance \n\n - Paid parental leave and support (up to 16 weeks) \n\n - Annual wellness stipend\n\nHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know."}],"apiVersion":"1"}