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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 build reliability efforts for Helion's fusion devices. Your role will focus on identifying and eliminating build risks while also growing a high-performing team of engineers and inspectors. You will establish build standards and partner closely with design, manufacturing, supply chain, and operations teams to ensure those build standards are maintained across the hardware lifecycle. You will report to the Senior Manager of Production, and this is an onsite role located at our Everett, WA office.
You Will:
Grow and mentor a team of build reliability engineers and inspectors
Own build reliability strategy across Helion's fusion devices, from early design through final assembly and commissioning
Drive Design for Reliability, Manufacturability, and Assembly practices into hardware development
Partner with design engineering to influence architectures and interfaces to improve build success and repeatability
Identify, prioritize, and mitigate build risks through structured analyses such as FMEA, tolerance analysis, and failure investigations
Lead containments, root cause analysis, and corrective and preventative actions of build issues and nonconformances
Required Skills:
Bachelor's degree in Engineering
5+ years of build reliability engineering experience, including 2+ years in an engineering management role
Demonstrated ability to hire and grow engineers and inspectors, 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, manufacturing, and electrical
Ability to apply engineering first-principles and structured problem-solving to technical challenges
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 build reliability efforts for Helion's fusion devices. Your role will focus on identifying and eliminating build risks while also growing a high-performing team of engineers and inspectors. You will establish build standards and partner closely with design, manufacturing, supply chain, and operations teams to ensure those build standards are maintained across the hardware lifecycle. You will report to the Senior Manager of Production, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Grow and mentor a team of build reliability engineers and inspectors\n\n - Own build reliability strategy across Helion's fusion devices, from early design through final assembly and commissioning\n\n - Drive Design for Reliability, Manufacturability, and Assembly practices into hardware development\n\n - Partner with design engineering to influence architectures and interfaces to improve build success and repeatability\n\n - Identify, prioritize, and mitigate build risks through structured analyses such as FMEA, tolerance analysis, and failure investigations\n\n - Lead containments, root cause analysis, and corrective and preventative actions of build issues and nonconformances\n\nRequired Skills:\n\n - Bachelor's degree in Engineering\n\n - 5+ years of build reliability engineering experience, including 2+ years in an engineering management role\n\n - Demonstrated ability to hire and grow engineers and inspectors, 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, manufacturing, and electrical\n\n - Ability to apply engineering first-principles and structured problem-solving to technical challenges\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"e5cd14f6-e6da-4437-808a-b8b4c284263d","title":"R&D Manager - Development Operations","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-13T22:42:43.048+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e5cd14f6-e6da-4437-808a-b8b4c284263d","applyUrl":"https://jobs.ashbyhq.com/helion/e5cd14f6-e6da-4437-808a-b8b4c284263d/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Manager of Development Operations, 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 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
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Manager of Development Operations, 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 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"bec9911b-e47d-4df3-906e-b370ac22e99a","title":"Senior Multiphysics Simulation Engineer","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-26T17:11:46.385+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/bec9911b-e47d-4df3-906e-b370ac22e99a","applyUrl":"https://jobs.ashbyhq.com/helion/bec9911b-e47d-4df3-906e-b370ac22e99a/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report directly to our Senior Manager of Engineering at our Everett, WA office.
You Will:
Enhancing Helion’s analysis workflow for critical structures (electromagnets)
Running transient multiphysics finite-element models to generate margins for critical designs
Collaborating with a multidisciplinary engineering team to improve critical hardware designs
Learning from in-house experts to expand your skillset into electrical and thermal analysis
Building software tools to automate the analysis workflow and allow Helion engineers and scientists to run their own analysis
Required Skills:
You have a bachelor’s degree in electrical engineering, applied mathematics, physics or related field with a minimum of 3 years of hands-on engineering experience.
Strong background in analytical, computational and numerical simulation methods
Expert level understanding of electromagnetic and thermal finite element modeling
Experience in taking on complex analysis problems from formulation through hardware testing and model correlation.
Proficiency with multiphysics finite-element analysis tools such as COSMOL, ANSYS or equivalent
Experience with programming environments (Matlab, Python, etc.) for scripting, tooling or data analysis
Familiarity with semiconductor physics, solid mechanics and structural dynamics (modal, transient)
Familiarity with Slurm or other high-performance computer cluster (HPC) batch schedulers
Desire to positively impact complex structural designs, rather than just execute on analysis
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report directly to our Senior Manager of Engineering at our Everett, WA office.\n\nYou Will:\n\n - Enhancing Helion’s analysis workflow for critical structures (electromagnets)\n\n - Running transient multiphysics finite-element models to generate margins for critical designs\n\n - Collaborating with a multidisciplinary engineering team to improve critical hardware designs\n\n - Learning from in-house experts to expand your skillset into electrical and thermal analysis\n\n - Building software tools to automate the analysis workflow and allow Helion engineers and scientists to run their own analysis\n\nRequired Skills:\n\n - You have a bachelor’s degree in electrical engineering, applied mathematics, physics or related field with a minimum of 3 years of hands-on engineering experience.\n\n - Strong background in analytical, computational and numerical simulation methods\n\n - Expert level understanding of electromagnetic and thermal finite element modeling\n\n - Experience in taking on complex analysis problems from formulation through hardware testing and model correlation.\n\n - Proficiency with multiphysics finite-element analysis tools such as COSMOL, ANSYS or equivalent\n\n - Experience with programming environments (Matlab, Python, etc.) for scripting, tooling or data analysis\n\n - Familiarity with semiconductor physics, solid mechanics and structural dynamics (modal, transient)\n\n - Familiarity with Slurm or other high-performance computer cluster (HPC) batch schedulers\n\n - Desire to positively impact complex structural designs, rather than just execute on analysis\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"b7654b53-00e4-4141-9e94-1c7ad762196e","title":"Mechanical Engineering Manager, Modules","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-03T19:53:16.604+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b7654b53-00e4-4141-9e94-1c7ad762196e","applyUrl":"https://jobs.ashbyhq.com/helion/b7654b53-00e4-4141-9e94-1c7ad762196e/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 efforts 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. You will report to the Director of Mechanical Engineering and this is an onsite role located at our Everett, WA office.
You Will:
Grow and mentor a team of multidisciplinary mechanical engineers
Oversee design of machine architecture, high-performance pulsed power mechanical systems, structural designs, and thermal management systems
Drive schedule ownership and optimization across the team to accelerate milestones
Lead design, analysis, and manufacturing process improvements to increase reliability, performance, and throughput
Collaborate with Electrical, Research, Science, and Controls teams to derive requirements and meet program goals
Required Skills:
Bachelor’s degree in Engineering
5+ years of engineering experience, including 2+ years in an engineering management role
Demonstrated ability to grow engineers and impact 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, electrical, and fluids
Ability to apply engineering first-principles and structured problem-solving to technical challenges
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 mechanical hardware design efforts 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. You will report to the Director of Mechanical Engineering and this is an onsite role located at our Everett, WA office.\n\nYou Will: \n\n - Grow and mentor a team of multidisciplinary mechanical engineers\n\n - Oversee design of machine architecture, high-performance pulsed power mechanical systems, structural designs, and thermal management systems\n\n - Drive schedule ownership and optimization across the team to accelerate milestones\n\n - Lead design, analysis, and manufacturing process improvements to increase reliability, performance, and throughput\n\n - Collaborate with Electrical, Research, Science, 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 engineering experience, including 2+ years in an engineering management role\n\n - Demonstrated ability to grow engineers and impact 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, electrical, and fluids\n\n - Ability to apply engineering first-principles and structured problem-solving to technical challenges\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"b7feaec3-e0af-4e67-a8ef-1707507f92b1","title":"EHS Specialist (Night Shift)","department":"Environmental Health & Safety","team":"Environmental Health & Safety","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-01T22:27:00.370+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b7feaec3-e0af-4e67-a8ef-1707507f92b1","applyUrl":"https://jobs.ashbyhq.com/helion/b7feaec3-e0af-4e67-a8ef-1707507f92b1/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
Night Shift Details: 5 days per week (M-F) | 3:00 PM – 11:00 PM
What You Will Be Doing
As an EHS Specialist at Helion, you will be part of a growing team dedicated to ensuring safety excellence across production, commissioning, and 24/7 operational activities. You’ll provide daily on-site safety support, coach teams in the field, and drive continuous improvement in Helion’s safety culture. This is an onsite role reporting directly to the EHS Manager at our Everett, WA office.
You Will:
Provide boots-on-the-ground safety oversight during manufacturing, commissioning, and production operations
Conduct daily field inspections, hazard identification, and Job Hazard Analyses (JHAs) to proactively prevent incidents
Coach and engage employees and contractors on safe work practices, PPE use, and procedure compliance
Support incident response and investigations, ensuring timely corrective and preventive actions
Deliver safety orientations and training for new employees and contractors
Reinforce a strong safety culture through visibility, accountability, and consistent field presence
Required Skills
3+ years of experience in EHS roles within construction, industrial, or manufacturing environments
Working knowledge of OSHA, NFPA, and other applicable safety standards
Demonstrated experience conducting field inspections, JHAs, and incident investigations
Strong communication and interpersonal skills; able to coach and influence across diverse teams
Physically able to conduct field inspections, climb stairs/ladders, and wear required PPE
Ability to work in dynamic, high-energy environments with 24/7 operations
Certifications: CHST, CSP, OSHA 30-Hour, or First Aid/CPR
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nNight Shift Details: 5 days per week (M-F) | 3:00 PM – 11:00 PM\n\nWhat You Will Be Doing \n\nAs an EHS Specialist at Helion, you will be part of a growing team dedicated to ensuring safety excellence across production, commissioning, and 24/7 operational activities. You’ll provide daily on-site safety support, coach teams in the field, and drive continuous improvement in Helion’s safety culture. This is an onsite role reporting directly to the EHS Manager at our Everett, WA office. \n\nYou Will: \n\n - Provide boots-on-the-ground safety oversight during manufacturing, commissioning, and production operations\n\n - Conduct daily field inspections, hazard identification, and Job Hazard Analyses (JHAs) to proactively prevent incidents \n\n - Coach and engage employees and contractors on safe work practices, PPE use, and procedure compliance\n\n - Support incident response and investigations, ensuring timely corrective and preventive actions \n\n - Deliver safety orientations and training for new employees and contractors\n\n - Reinforce a strong safety culture through visibility, accountability, and consistent field presence\n\nRequired Skills \n\n - 3+ years of experience in EHS roles within construction, industrial, or manufacturing environments \n\n - Working knowledge of OSHA, NFPA, and other applicable safety standards\n\n - Demonstrated experience conducting field inspections, JHAs, and incident investigations\n\n - Strong communication and interpersonal skills; able to coach and influence across diverse teams\n\n - Physically able to conduct field inspections, climb stairs/ladders, and wear required PPE\n\n - Ability to work in dynamic, high-energy environments with 24/7 operations\n\n - Certifications: CHST, CSP, OSHA 30-Hour, or First Aid/CPR\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"a9a2725e-24e6-4338-b0cf-828d7a6158f5","title":"Build the Future with Us! | Helion Talent Community","department":"All Departments","team":"All Departments","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-01-28T22:05:47.201+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a9a2725e-24e6-4338-b0cf-828d7a6158f5","applyUrl":"https://jobs.ashbyhq.com/helion/a9a2725e-24e6-4338-b0cf-828d7a6158f5/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
Join The Helion Talent Community
Even if you don’t see a role that aligns with what you’re looking for, we want to hear from you!
If the following resonates with you, we encourage you to apply:
Motivated to solve hard problems and deliver on big missions
Helion's values align with how you want to work
Have experience rapidly scaling manufacturing assembly lines and processes
Built technologies in aerospace, electrical, or mechanical engineering
Have publications and research experience in plasma-related fields
Built programs to drive the business forward and while enabling teams to deliver on new technologies
Determined to drive global change in the clean energy landscape
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nJoin The Helion Talent Community \n\nEven if you don’t see a role that aligns with what you’re looking for, we want to hear from you! \n\nIf the following resonates with you, we encourage you to apply: \n\n - Motivated to solve hard problems and deliver on big missions \n\n - Helion's values align with how you want to work \n\n - Have experience rapidly scaling manufacturing assembly lines and processes \n\n - Built technologies in aerospace, electrical, or mechanical engineering \n\n - Have publications and research experience in plasma-related fields \n\n - Built programs to drive the business forward and while enabling teams to deliver on new technologies\n\n - Determined to drive global change in the clean energy landscape \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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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","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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Computational Plasma Engineer. 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 Director of Research 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. with 5+ years of industry experience in Physics, engineering, or related field of study with an emphasis in electromagnetics
Knowledge of magnetic field diffusion and eddy currents
Ability to understand FRC physics
Experience writing scripts to analyze output, parse files, and create plots in a common coding language (e.g. MATLAB, Fortran, C, Python, etc.)
Experience with MATLAB and Fortran
Experience using computer simulation tools for circuit dynamics, fluid dynamics, transient magnetics, or plasma dynamics
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Computational Plasma Engineer. 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 Director of Research 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. with 5+ years of industry experience in Physics, engineering, or related field of study with an emphasis in electromagnetics \n\n - Knowledge of magnetic field diffusion and eddy currents \n\n - Ability to understand FRC physics \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 with MATLAB and Fortran \n\n - Experience using computer simulation tools for circuit dynamics, fluid dynamics, transient magnetics, or plasma dynamics\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"42321984-0158-429d-a7b5-2c518d2a8b0f","title":"Senior Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-03-03T19:07:25.127+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/42321984-0158-429d-a7b5-2c518d2a8b0f","applyUrl":"https://jobs.ashbyhq.com/helion/42321984-0158-429d-a7b5-2c518d2a8b0f/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Capacitor Manufacturing and this is an onsite role located 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 grow production line and build the foundation for high-volume production
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 and high-volume 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Capacitor Manufacturing and this is an onsite role located 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 grow production line and build the foundation for high-volume production\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 and high-volume 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"b06b8b72-648a-473f-a0b5-1f30983668d9","title":"Senior Manager of People Operations","department":"People","team":"People","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-04-14T22:48:07.128+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b06b8b72-648a-473f-a0b5-1f30983668d9","applyUrl":"https://jobs.ashbyhq.com/helion/b06b8b72-648a-473f-a0b5-1f30983668d9/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 team responsible for building and scaling people programs that power our mission. From onboarding to offboarding, benefits to systems, you will ensure our programs are delivered with urgency, built to scale, and executed with rigor. You will also play a key role in shaping our people infrastructure—helping us create a best-in-class employee experience that supports Helion’s growth. You will report to the Director of People Operations and Talent and this is an onsite role located at our Everett, WA office.
You Will:
Lead a team of People experts driving programs across the entire employee lifecycle—from onboarding to offboarding
Own the design and execution of core programs including performance management, engagement, recognition, and total rewards
Oversee compliance, policy, payroll, and benefits with a focus on operational rigor and employee experience
Build and optimize systems, workflows, and processes to support scale, automation, and accuracy
Design and deliver high-impact L&D and manager development initiatives to grow leadership and core capabilities
Partner cross-functionally to ensure People programs are aligned, adopted, and drive meaningful impact
Use data to evaluate program effectiveness, guide decisions, and iterate quickly
Stay ahead of evolving workforce trends, compliance needs, and HR tech to ensure we’re future-ready
Required Skills:
10+ years of experience in the People function, with 3+ years in a leadership role
Experience across multiple areas of People Operations, including compensation, compliance, L&D, total rewards, and more
Strong program and stakeholder management skills—able to drive complex, cross-functional initiatives from idea to execution
Skilled in implementing and managing HR tech systems, with a process-oriented and systems-thinking approach
Experience using data to build reporting infrastructure and improve programs over time
Proven success leading and scaling people programs in high-growth or startup environments
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 team responsible for building and scaling people programs that power our mission. From onboarding to offboarding, benefits to systems, you will ensure our programs are delivered with urgency, built to scale, and executed with rigor. You will also play a key role in shaping our people infrastructure—helping us create a best-in-class employee experience that supports Helion’s growth. You will report to the Director of People Operations and Talent and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Lead a team of People experts driving programs across the entire employee lifecycle—from onboarding to offboarding\n\n - Own the design and execution of core programs including performance management, engagement, recognition, and total rewards\n\n - Oversee compliance, policy, payroll, and benefits with a focus on operational rigor and employee experience\n\n - Build and optimize systems, workflows, and processes to support scale, automation, and accuracy\n\n - Design and deliver high-impact L&D and manager development initiatives to grow leadership and core capabilities\n\n - Partner cross-functionally to ensure People programs are aligned, adopted, and drive meaningful impact\n\n - Use data to evaluate program effectiveness, guide decisions, and iterate quickly\n\n - Stay ahead of evolving workforce trends, compliance needs, and HR tech to ensure we’re future-ready\n\nRequired Skills:\n\n - 10+ years of experience in the People function, with 3+ years in a leadership role\n\n - Experience across multiple areas of People Operations, including compensation, compliance, L&D, total rewards, and more\n\n - Strong program and stakeholder management skills—able to drive complex, cross-functional initiatives from idea to execution\n\n - Skilled in implementing and managing HR tech systems, with a process-oriented and systems-thinking approach\n\n - Experience using data to build reporting infrastructure and improve programs over time\n\n - Proven success leading and scaling people programs in high-growth or startup environments\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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, Diagnostics","department":"Science","team":"Science","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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Experimental 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)
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Experimental 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 an 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 Experimental 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
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 an 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 Experimental 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"52bfe247-c831-4af9-be84-db3d543936e7","title":"Build Reliability Engineer","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-09-10T21:05:01.280+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/52bfe247-c831-4af9-be84-db3d543936e7","applyUrl":"https://jobs.ashbyhq.com/helion/52bfe247-c831-4af9-be84-db3d543936e7/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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:
You will own the development and implementation of systems that ensure Helion's manufactured products and processes are reliable, efficient, and consistently meet requirements throughout their lifecycle. 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. You will report to the Senior Manager of Production, and this is an onsite role located at our Everett, WA office.
You Will:
Develop receiving inspection and machine shop inspection processes that ensure reliable performance of both outsourced and in-house manufactured hardware
Implement lean test and inspection processes to ensure reliable manufacturing systems
Utilize manufacturing and product data to lead containment and corrective actions on fusion hardware and integrated fusion generators
Collaborate with design engineering teams to challenge and simplify hardware requirements
Work hands-on with experienced technicians to build and implement reliable manufacturing processes
Expand your engineering skills and domain knowledge by learning from experts
Required Skills:
Bachelor's degree in engineering
5+ 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
#LI-Onsite
#LI-EW1
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nYou will own the development and implementation of systems that ensure Helion's manufactured products and processes are reliable, efficient, and consistently meet requirements throughout their lifecycle. 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. You will report to the Senior Manager of Production, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Develop receiving inspection and machine shop inspection processes that ensure reliable performance of both outsourced and in-house manufactured hardware\n\n - Implement lean test and inspection processes to ensure reliable manufacturing systems\n\n - Utilize manufacturing and product data to lead containment and corrective actions on fusion hardware and integrated fusion generators\n\n - Collaborate with design engineering teams to challenge and simplify hardware requirements\n\n - Work hands-on with experienced technicians to build and implement reliable manufacturing processes\n\n - Expand your engineering skills and domain knowledge by learning from experts\n\nRequired Skills:\n\n - Bachelor's degree in engineering\n\n - 5+ 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#LI-Onsite\n\n#LI-EW1\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"52fade3b-17d1-47e7-97b5-ff76524ffe95","title":"Director of Fusion Plant Operations","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-05-20T19:34:42.026+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/52fade3b-17d1-47e7-97b5-ff76524ffe95","applyUrl":"https://jobs.ashbyhq.com/helion/52fade3b-17d1-47e7-97b5-ff76524ffe95/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 role carries a dual mandate: accelerating the development of Helion's fusion technology and building the Deployment organization that will operate the world's first commercial fusion power plants.
Today, that means leading innovation across our fusion test platforms, subscale integrated devices, vacuum testing, circuit development, and other research projects required to meet our goal of delivering fusion energy to the grid by 2028.
In this critical leadership role, you will define and drive the pace at which Helion builds, tests, and learns from each generation of fusion technology. Building the teams, processes, training, culture and standards of excellence required to deploy, commission, test, and operate commercial scale, integrated fusion power plants, your work will directly accelerate our ability to deliver affordable, clean electricity to the world.
This position sits at the intersection of science, engineering, and operations, and reports directly to the CEO.
You Will:
Develop the Deployment team: build the team, training, and processes that will form the backbone for the operators of the world's first fusion power plants
Define long-term strategy: develop a strategic roadmap for future machine commissioning and testing capabilities. Define a pathway to delivering operating fusion power plants, including the operational infrastructure, training, and safety
Accelerate fusion development: set the standard for rapid iteration and data-driven development of Helion's fusion generations and plasma systems
Lead and grow a world-class team: manage a cross-disciplinary team of experimental scientists and engineers focused on fast paced experimentation
Shape operation campaigns: partner with Helion's Science and Engineering teams to execute high-impact experimental programs in plasma physics and generator operations. Overseeing the team responsible for implementing several multimillion-dollar research and engineering project simultaneously
Drive cross-functional alignment and knowledge sharing across Operations, Engineering, Production, and Research to enable data-informed design decisions for future generations of fusion machines
Required Skills:
Master's degree in engineering or physics
10+ years of experience in R&D and operational leadership within engineering environments
7+ years managing large, technically challenging programs with full schedule and resource ownership
5+ years of experience managing technical teams, including managing managers
Experience commissioning large-scale, complex machines
Demonstrated ability to apply first principles thinking and analytical rigor to solve engineering and scientific challenges
Cross-functional leadership and collaboration skills with experience guiding diverse technical teams
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 role carries a dual mandate: accelerating the development of Helion's fusion technology and building the Deployment organization that will operate the world's first commercial fusion power plants.\n\nToday, that means leading innovation across our fusion test platforms, subscale integrated devices, vacuum testing, circuit development, and other research projects required to meet our goal of delivering fusion energy to the grid by 2028.\n\nIn this critical leadership role, you will define and drive the pace at which Helion builds, tests, and learns from each generation of fusion technology. Building the teams, processes, training, culture and standards of excellence required to deploy, commission, test, and operate commercial scale, integrated fusion power plants, your work will directly accelerate our ability to deliver affordable, clean electricity to the world.\n\nThis position sits at the intersection of science, engineering, and operations, and reports directly to the CEO. \n\nYou Will:\n\n - Develop the Deployment team: build the team, training, and processes that will form the backbone for the operators of the world's first fusion power plants\n\n - Define long-term strategy: develop a strategic roadmap for future machine commissioning and testing capabilities. Define a pathway to delivering operating fusion power plants, including the operational infrastructure, training, and safety\n\n - Accelerate fusion development: set the standard for rapid iteration and data-driven development of Helion's fusion generations and plasma systems\n\n - Lead and grow a world-class team: manage a cross-disciplinary team of experimental scientists and engineers focused on fast paced experimentation\n\n - Shape operation campaigns: partner with Helion's Science and Engineering teams to execute high-impact experimental programs in plasma physics and generator operations. Overseeing the team responsible for implementing several multimillion-dollar research and engineering project simultaneously\n\n - Drive cross-functional alignment and knowledge sharing across Operations, Engineering, Production, and Research to enable data-informed design decisions for future generations of fusion machines\n\nRequired Skills:\n\n - Master's degree in engineering or physics\n\n - 10+ years of experience in R&D and operational leadership within engineering environments\n\n - 7+ years managing large, technically challenging programs with full schedule and resource ownership\n\n - 5+ years of experience managing technical teams, including managing managers\n\n - Experience commissioning large-scale, complex machines \n\n - Demonstrated ability to apply first principles thinking and analytical rigor to solve engineering and scientific challenges\n\n - Cross-functional leadership and collaboration skills with experience guiding diverse technical teams\n\n#LI-Onsite\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"bc884700-f3af-44f1-8725-f5a91c2d8752","title":"Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-10-18T01:06:04.084+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/bc884700-f3af-44f1-8725-f5a91c2d8752","applyUrl":"https://jobs.ashbyhq.com/helion/bc884700-f3af-44f1-8725-f5a91c2d8752/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Director of Capacitor Manufacturing 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 grow production line and build the foundation for high-volume production
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 and high-volume 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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 Director of Capacitor Manufacturing 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 grow production line and build the foundation for high-volume production\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 and high-volume 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"d21554ad-1add-4cda-8fe0-e7cb082463e0","title":"Materials Science Manager, Metals and Dielectric Materials ","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-10T19:30:48.809+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/d21554ad-1add-4cda-8fe0-e7cb082463e0","applyUrl":"https://jobs.ashbyhq.com/helion/d21554ad-1add-4cda-8fe0-e7cb082463e0/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Metals and Dielectric Materials Science team, bringing together expertise in new materials design, analytical engineering, prototyping, and scale-up. In this role, you will guide the development of advanced inorganic materials for extreme environments, aligning cross-disciplinary efforts to deliver reliable, high-performance solutions that support Helion’s mission. This is an onsite role that reports directly to Director of the Materials Science at our Everett, WA office.
Lead, develop, and support subject matter experts driving the development and scale-up of advanced conductive materials engineered for extreme environments, including elevated temperature and radiation exposure
Own and manage the delivery of Helion’s conductive materials needs such as magnets, structural elements, and capacitors
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
Build and manage a network of collaborative relationships, both internally and externally, to develop new materials that can survive a fusion environment
Minimum Required Skills:
Experience with developing new metals, alloys, and multi-metal microstructure from ideation to launch
Experience or deep knowledge of metal processes including casting, forging, machining, grinding, and milling
Hands-on experience in analytical equipment to characterize metals properties including structural, mechanical, thermal, and electrical properties (e.g., metallograph, XRD, SEM, TEM, TGA/DSC, ICP-MS, Fatigue tests, flexural, and tensile tests)
The ideal candidate would have a bias for action, know how to organize the team to execute with urgency, and favor learning through rapid prototyping
Experience (i) managing a materials science team that delivered a high-impact final product, (ii) expanding a talent-dense team via a hiring process, and (iii) owning the schedule for a critical path facet of a milestone project
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
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Metals and Dielectric Materials Science team, bringing together expertise in new materials design, analytical engineering, prototyping, and scale-up. In this role, you will guide the development of advanced inorganic materials for extreme environments, aligning cross-disciplinary efforts to deliver reliable, high-performance solutions that support Helion’s mission. This is an onsite role that reports directly to Director of the Materials Science at our Everett, WA office.\n\n - Lead, develop, and support subject matter experts driving the development and scale-up of advanced conductive materials engineered for extreme environments, including elevated temperature and radiation exposure\n\n - Own and manage the delivery of Helion’s conductive materials needs such as magnets, structural elements, and capacitors\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\n - Build and manage a network of collaborative relationships, both internally and externally, to develop new materials that can survive a fusion environment\n\nMinimum Required Skills:\n\n - Experience with developing new metals, alloys, and multi-metal microstructure from ideation to launch\n\n - Experience or deep knowledge of metal processes including casting, forging, machining, grinding, and milling\n\n - Hands-on experience in analytical equipment to characterize metals properties including structural, mechanical, thermal, and electrical properties (e.g., metallograph, XRD, SEM, TEM, TGA/DSC, ICP-MS, Fatigue tests, flexural, and tensile tests)\n\n - The ideal candidate would have a bias for action, know how to organize the team to execute with urgency, and favor learning through rapid prototyping\n\n - Experience (i) managing a materials science team that delivered a high-impact final product, (ii) expanding a talent-dense team via a hiring process, and (iii) owning the schedule for a critical path facet of a milestone project\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"4b01920b-70b8-4e7b-aed5-ad1951089fa2","title":"Director of Fusion Plant Engineering","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-07T15:48:42.893+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4b01920b-70b8-4e7b-aed5-ad1951089fa2","applyUrl":"https://jobs.ashbyhq.com/helion/4b01920b-70b8-4e7b-aed5-ad1951089fa2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
About The Role
In this role, you will own the design and execution of critical plant systems that make fusion power possible - from radiation shielding and gas handling to thermal management and heat recovery. This role is at the heart of translating fusion physics into practical power generation. You’ll build and lead teams that integrate Helion’s fusion generators with the systems that extract, move, and manage energy at scale. It’s a rare opportunity to lead multidisciplinary engineering at the edge of what’s possible and you'll have direct ownership of the systems that will define the world’s first fusion power plant. This is an onsite role that reports directly to the VP of Engineering at our Everett, WA office.
What You Will Be Doing:
Build and lead high-performing engineering teams across mechanical, thermal, and fluid systems
Own the design and delivery of critical plant systems — radiation shielding, fuel and exhaust gas systems, vacuum infrastructure, and thermal management
Partner with nuclear, magnet, and systems engineering teams to integrate fusion generators into a cohesive power plant
Drive cross-functional engineering execution — from early concept to detailed design, manufacturing, and test
Set the technical bar for rigor, documentation, and accountability, ensuring safety, scalability, and reliability
Continually raise the standard for ownership, execution pace, and design clarity across your teams
Develop the next generation of Helion engineering leaders through mentorship and example.
Required Skills
A degree in engineering or sciences
10+ years of multidisciplinary engineering experience, including 5+ in technical leadership or management
Proven success leading complex system design from concept through deployment
Expertise in one or more of the following: mechanical systems, heat transfer, vacuum systems, or process engineering
Demonstrated ability to build structure and focus in fast-moving, high-ambiguity environments while building teams that execute
A leadership style that aligns with Helion's values - ownership, urgency, rigor and truth
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nAbout The Role\n\nIn this role, you will own the design and execution of critical plant systems that make fusion power possible - from radiation shielding and gas handling to thermal management and heat recovery. This role is at the heart of translating fusion physics into practical power generation. You’ll build and lead teams that integrate Helion’s fusion generators with the systems that extract, move, and manage energy at scale. It’s a rare opportunity to lead multidisciplinary engineering at the edge of what’s possible and you'll have direct ownership of the systems that will define the world’s first fusion power plant. This is an onsite role that reports directly to the VP of Engineering at our Everett, WA office.\n\nWhat You Will Be Doing:\n\n - Build and lead high-performing engineering teams across mechanical, thermal, and fluid systems\n\n - Own the design and delivery of critical plant systems — radiation shielding, fuel and exhaust gas systems, vacuum infrastructure, and thermal management\n\n - Partner with nuclear, magnet, and systems engineering teams to integrate fusion generators into a cohesive power plant\n\n - Drive cross-functional engineering execution — from early concept to detailed design, manufacturing, and test\n\n - Set the technical bar for rigor, documentation, and accountability, ensuring safety, scalability, and reliability\n\n - Continually raise the standard for ownership, execution pace, and design clarity across your teams\n\n - Develop the next generation of Helion engineering leaders through mentorship and example.\n\nRequired Skills\n\n - A degree in engineering or sciences\n\n - 10+ years of multidisciplinary engineering experience, including 5+ in technical leadership or management\n\n - Proven success leading complex system design from concept through deployment\n\n - Expertise in one or more of the following: mechanical systems, heat transfer, vacuum systems, or process engineering\n\n - Demonstrated ability to build structure and focus in fast-moving, high-ambiguity environments while building teams that execute\n\n - A leadership style that aligns with Helion's values - ownership, urgency, rigor and truth\n\n#LI-Onsite\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-11-05T23:09:28.319+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-11-08T01:14:04.005+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"cec38fd0-2853-4ccb-8ab3-3925239237e8","title":"Senior Network Engineer","department":"Information Security & Technology ","team":"Information Security & Technology ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-11-08T01:14:11.672+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/cec38fd0-2853-4ccb-8ab3-3925239237e8","applyUrl":"https://jobs.ashbyhq.com/helion/cec38fd0-2853-4ccb-8ab3-3925239237e8/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Senior Network Engineer is a key member of the IS&T infrastructure team, responsible for architecting and managing enterprise-level network systems. This role involves leading network design initiatives, troubleshooting advanced issues, and ensuring the security and reliability of all network operations. This is an onsite role that reports directly to the Director of IS&T at our Everett, WA office.
Architect and deploy LAN/WAN, VPN, and cloud-based network solutions to support business needs
Monitor network performance, identify bottlenecks, and implement enhancements to improve speed and reliability
Configure and manage firewalls, intrusion detection/prevention systems, and access controls to safeguard network assets
Resolve escalated network issues and provide Tier 3 support for complex problems
Maintain detailed network diagrams, configuration records, and performance reports
Lead network-related projects, including upgrades, migrations, and integrations with other IT systems
Work closely with system administrators, cybersecurity teams, and vendors to ensure seamless operations
Train and mentor junior network engineers and contribute to team development
Required Skills:
8+ years of network engineering experience
Deep knowledge of routing and switching protocols (BGP, OSPF, EIGRP), network hardware (Fortinet, Cisco, Juniper), and cloud networking (AWS, Azure, GCP)
Experience with network security tools and protocols, including VPNs, firewalls, and NAC systems
Strong problem-solving abilities and capacity planning experience
CCNP, CCIE, or equivalent certifications preferred
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Senior Network Engineer is a key member of the IS&T infrastructure team, responsible for architecting and managing enterprise-level network systems. This role involves leading network design initiatives, troubleshooting advanced issues, and ensuring the security and reliability of all network operations. This is an onsite role that reports directly to the Director of IS&T at our Everett, WA office.\n\n - Architect and deploy LAN/WAN, VPN, and cloud-based network solutions to support business needs\n\n - Monitor network performance, identify bottlenecks, and implement enhancements to improve speed and reliability\n\n - Configure and manage firewalls, intrusion detection/prevention systems, and access controls to safeguard network assets\n\n - Resolve escalated network issues and provide Tier 3 support for complex problems\n\n - Maintain detailed network diagrams, configuration records, and performance reports\n\n - Lead network-related projects, including upgrades, migrations, and integrations with other IT systems\n\n - Work closely with system administrators, cybersecurity teams, and vendors to ensure seamless operations\n\n - Train and mentor junior network engineers and contribute to team development\n\nRequired Skills: \n\n - 8+ years of network engineering experience\n\n - Deep knowledge of routing and switching protocols (BGP, OSPF, EIGRP), network hardware (Fortinet, Cisco, Juniper), and cloud networking (AWS, Azure, GCP)\n\n - Experience with network security tools and protocols, including VPNs, firewalls, and NAC systems\n\n - Strong problem-solving abilities and capacity planning experience\n\n - CCNP, CCIE, or equivalent certifications preferred\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"Engineering 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Fuel Cycle Engineering 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Fuel Cycle Engineering 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"b3ee1d64-ed7c-4061-bcc5-fc9fae2ef468","title":"Production Scheduler","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-11-24T22:09:00.194+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/b3ee1d64-ed7c-4061-bcc5-fc9fae2ef468","applyUrl":"https://jobs.ashbyhq.com/helion/b3ee1d64-ed7c-4061-bcc5-fc9fae2ef468/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Production Scheduler for Capacitor Manufacturing develops and maintains production schedules that align with long-term company milestones, engineering priorities, and available resources across the production organization. You will ensure flow of materials and assemblies through all stages of production, from raw material delivery to final assembly testing, ensuring production of Helion's fusion power plants. This is onsite role that reports directly to our Production Manager at our Everett, WA office.
You Will:
Maintain detailed daily, weekly, and long-range production schedules for capacitor manufacturing
Oversee cross organization communication and understanding of schedules, and tools for tracking progress toward schedule goals
Partner with Engineering and Manufacturing teams to create project schedules (i.e new configuration changes, new process introductions, new product lines, forecasting demand)
Collaborate with Production Leaders, Buyers, Engineers, Inspectors, and Material Handlers to align build priorities and resource allocation
Create tools for high-detail schedules and proactive identification of production/supply chain risks
Monitor work order progress, identify schedule risks, and adjust plans to minimize downtime and bottlenecks
Manage ERP/MRP data accuracy, including setting MRP demand, determining work order start and completion dates, tracking part availability, and tracking inventory data accuracy
Partner with leadership to identify and lead process improvements that improve scheduling accuracy, production flow, and throughput
Required Skills:
Bachelor's degree or equivalent years of working experience
4+ years of experience in scheduling, project management, engineering, or coordination within a manufacturing or warehouse environment
Proficiency in an ERP/MRP system (e.g., NetSuite, ION, Manufacturo, SAP) and Microsoft Excel
Collaborate across production, engineering, and supply chain functions
#LI-Onsite #LI-CW1
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Production Scheduler for Capacitor Manufacturing develops and maintains production schedules that align with long-term company milestones, engineering priorities, and available resources across the production organization. You will ensure flow of materials and assemblies through all stages of production, from raw material delivery to final assembly testing, ensuring production of Helion's fusion power plants. This is onsite role that reports directly to our Production Manager at our Everett, WA office.\n\nYou Will:\n\n - Maintain detailed daily, weekly, and long-range production schedules for capacitor manufacturing\n\n - Oversee cross organization communication and understanding of schedules, and tools for tracking progress toward schedule goals\n\n - Partner with Engineering and Manufacturing teams to create project schedules (i.e new configuration changes, new process introductions, new product lines, forecasting demand)\n\n - Collaborate with Production Leaders, Buyers, Engineers, Inspectors, and Material Handlers to align build priorities and resource allocation\n\n - Create tools for high-detail schedules and proactive identification of production/supply chain risks\n\n - Monitor work order progress, identify schedule risks, and adjust plans to minimize downtime and bottlenecks\n\n - Manage ERP/MRP data accuracy, including setting MRP demand, determining work order start and completion dates, tracking part availability, and tracking inventory data accuracy\n\n - Partner with leadership to identify and lead process improvements that improve scheduling accuracy, production flow, and throughput\n\nRequired Skills:\n\n - Bachelor's degree or equivalent years of working experience\n\n - 4+ years of experience in scheduling, project management, engineering, or coordination within a manufacturing or warehouse environment\n\n - Proficiency in an ERP/MRP system (e.g., NetSuite, ION, Manufacturo, SAP) and Microsoft Excel\n\n - Collaborate across production, engineering, and supply chain functions\n\n#LI-Onsite #LI-CW1\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"c13dc736-878b-423b-849e-d20f9aac4d1b","title":"Controls Development Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-05T16:27:00.267+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/c13dc736-878b-423b-849e-d20f9aac4d1b","applyUrl":"https://jobs.ashbyhq.com/helion/c13dc736-878b-423b-849e-d20f9aac4d1b/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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\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\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"42c4820d-e7b7-4352-8179-7ef4827c62de","title":"Production Supervisor, PCBA Integration & Test","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-08T19:59:56.479+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/42c4820d-e7b7-4352-8179-7ef4827c62de","applyUrl":"https://jobs.ashbyhq.com/helion/42c4820d-e7b7-4352-8179-7ef4827c62de/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 and develop a team of engineering and production technicians responsible for the safe and efficient execution of low voltage assembly, integration and test across Helion's production and development programs. In this role, you will manage daily production schedules and floor operations, drive technician growth and training, and partner closely with Electrical Engineering and Production leadership to ensure consistent throughput, schedule adherence, and quality across all low voltage and test activities. This is an onsite role reporting to a Production Manager at our Everett, WA facility.
You Will:
Lead day to day execution for a low voltage production team, including task assignment, schedule adherence, and workload balancing
Own throughput and schedule delivery for assigned builds across a mix of production and development work
Supervise and develop a team working across PCBA assembly and rework, bench testing and debug, data acquisition and instrumentation, controls, and diagnostics that enable machine operation, monitoring, and experimentation
Act as the primary interface between Electrical Engineering and low voltage technicians, translating engineering intent into executable work and providing clear feedback from the floor
Build and maintain training plans, skill matrices, and onboarding paths to support technician growth and production scalability
Drive continuous improvement initiatives, including workflow optimization, standardized work, and process stabilization
Own technician hiring decisions, onboarding, and performance management in partnership with the Production Manager
Ensure work is executed safely, with a strong culture of quality, accountability, and ownership
Track progress, identify execution risks, and escalate issues early with clear data and proposed solutions
Required Skills:
3–5 years of supervisory experience
Familiarity with electrical assembly and testing practices, with a strong emphasis on safe work execution
Proven ability to lead and develop technical teams in a fast-paced, safety-critical environment
Strong organizational and communication skills with demonstrated experience managing schedules and priorities across shifts
Skilled in collaborating with Engineers, Supervisors, and cross-functional partners to maintain operational excellence
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 and develop a team of engineering and production technicians responsible for the safe and efficient execution of low voltage assembly, integration and test across Helion's production and development programs. In this role, you will manage daily production schedules and floor operations, drive technician growth and training, and partner closely with Electrical Engineering and Production leadership to ensure consistent throughput, schedule adherence, and quality across all low voltage and test activities. This is an onsite role reporting to a Production Manager at our Everett, WA facility.\n\nYou Will:\n\n - Lead day to day execution for a low voltage production team, including task assignment, schedule adherence, and workload balancing\n\n - Own throughput and schedule delivery for assigned builds across a mix of production and development work\n\n - Supervise and develop a team working across PCBA assembly and rework, bench testing and debug, data acquisition and instrumentation, controls, and diagnostics that enable machine operation, monitoring, and experimentation\n\n - Act as the primary interface between Electrical Engineering and low voltage technicians, translating engineering intent into executable work and providing clear feedback from the floor\n\n - Build and maintain training plans, skill matrices, and onboarding paths to support technician growth and production scalability\n\n - Drive continuous improvement initiatives, including workflow optimization, standardized work, and process stabilization\n\n - Own technician hiring decisions, onboarding, and performance management in partnership with the Production Manager\n\n - Ensure work is executed safely, with a strong culture of quality, accountability, and ownership\n\n - Track progress, identify execution risks, and escalate issues early with clear data and proposed solutions\n\nRequired Skills:\n\n - 3–5 years of supervisory experience\n\n - Familiarity with electrical assembly and testing practices, with a strong emphasis on safe work execution\n\n - Proven ability to lead and develop technical teams in a fast-paced, safety-critical environment\n\n - Strong organizational and communication skills with demonstrated experience managing schedules and priorities across shifts\n\n - Skilled in collaborating with Engineers, Supervisors, and cross-functional partners to maintain operational excellence\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 Specialist","department":"Communications","team":"Communications","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-05-06T16:20:03.100+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 role will be pivotal in scaling Helion's internal communications programs, with ownership of key storytelling and communication mechanisms that keep our growing team aligned and engaged across every site and shift. You'll partner with Production and Manufacturing leaders to surface stories, support team-wide events, and write announcements and updates. 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 Internal Communications Lead at our Everett, WA office.
You Will:
Plan, develop, and deliver of recurring internal communications, including newsletter features, team presentations, digital signage, and leader announcements
Strategize and support the execution of high-priority internal campaigns and events, including delivery of key topics at company-wide Town Halls
Partner with our Production and Manufacturing leaders to drive team engagement and alignment through existing channels (Technician All Hands), identifying new or evolving mechanisms to keep technicians connected across shifts
Manage intranet content / company wiki pages, working alongside documentation owners and SMEs to ensure published information is maintained as the single source of truth
Work with IS&T and People Ops to optimize the company's user groups (levels, teams, site locations) across company channels (distribution lists, Slack) to ensure the right messages reach the right employees
Required Skills:
5+ years of experience in internal communications, or employee engagement—ideally in a high-growth, manufacturing or hardware engineering environment
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 a knack for tailoring key messages across multiple formats, diverse audiences and range of channels like email, Slack, Confluence and digital signage
Experience translating complex manufacturing or engineering topics into clear, compelling communications
Success driving projects with strong organization, attention to detail, and end-to-end ownership of storytelling
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 role will be pivotal in scaling Helion's internal communications programs, with ownership of key storytelling and communication mechanisms that keep our growing team aligned and engaged across every site and shift. You'll partner with Production and Manufacturing leaders to surface stories, support team-wide events, and write announcements and updates. 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 Internal Communications Lead at our Everett, WA office.\n\nYou Will:\n\n - Plan, develop, and deliver of recurring internal communications, including newsletter features, team presentations, digital signage, and leader announcements\n\n - Strategize and support the execution of high-priority internal campaigns and events, including delivery of key topics at company-wide Town Halls\n\n - Partner with our Production and Manufacturing leaders to drive team engagement and alignment through existing channels (Technician All Hands), identifying new or evolving mechanisms to keep technicians connected across shifts\n\n - Manage intranet content / company wiki pages, working alongside documentation owners and SMEs to ensure published information is maintained as the single source of truth\n\n - Work with IS&T and People Ops to optimize the company's user groups (levels, teams, site locations) across company channels (distribution lists, Slack) to ensure the right messages reach the right employees\n\nRequired Skills:\n\n - 5+ years of experience in internal communications, or employee engagement—ideally in a high-growth, manufacturing or hardware engineering environment\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 a knack for tailoring key messages across multiple formats, diverse audiences and range of channels like email, Slack, Confluence and digital signage\n\n - Experience translating complex manufacturing or engineering topics into clear, compelling communications\n\n - Success driving projects with strong organization, attention to detail, and end-to-end ownership of storytelling\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"1b5a2dbb-ffb2-4fe1-ae4f-61dca7809ea8","title":"Senior Equipment Safety Engineer","department":"Environmental Health & Safety","team":"Environmental Health & Safety","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-17T23:28:35.069+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/1b5a2dbb-ffb2-4fe1-ae4f-61dca7809ea8","applyUrl":"https://jobs.ashbyhq.com/helion/1b5a2dbb-ffb2-4fe1-ae4f-61dca7809ea8/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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:
As a Senior Equipment Safety Engineer at Helion, you will play a critical role in ensuring the safety, compliance, and operational readiness of our rapidly scaling manufacturing and R&D environments. You'll collaborate across engineering, operations, and safety teams to ensure new and modified equipment meets rigorous design, regulatory, and performance standards. As the Senior Equipment Safety Engineer you will also help stand up our equipment safety sign off process and support manufacturing process design. This is an onsite role that reports to the Senior EHS Manager at our Everett, WA office.
You Will:
Conduct Risk Assessments for new and modified equipment in accordance with ISO 12100 and ANSI B11 standards
Create and stand up our equipment safety sign off process and support manufacturing process design
Partner with engineering, operations, and vendor teams to review and approve equipment designs, ensuring safe integration and lifecycle performance
Develop and maintain equipment safety standards, SOPs, and training programs to support safe operations
Manage regulatory compliance and documentation, including CE marking, UL/NRTL certification, and coordination with third-party testing agencies.
Support control system safety integration for new machinery, including safety PLCs, interlocks, and emergency stop systems
Advise cross-functional teams on best practices for equipment design, guarding, and risk mitigation
Provide technical leadership in machine safety engineering, helping scale Helion's equipment safety framework across new facilities and production lines
Required Skills & Experience:
Bachelor's degree in Mechanical, Electrical, Industrial, or Safety Engineering, or related field
5+ years of experience in equipment safety, machine design, or industrial automation within manufacturing, energy, or R&D environments
Deep understanding of ISO 12100, ANSI B11, and OSHA 1910 Subpart O standards
Experience with control system safety integration, including functional safety (SIL/PL) concepts
Familiarity with CE, UL, and NRTL certification processes
Proven ability to collaborate across disciplines to deliver safe, compliant equipment designs
Strong analytical and communication skills with the ability to translate technical safety requirements into practical solutions
Preferred certifications: CSP, CMSE®, TÜV Functional Safety Engineer, or equivalent machine safety credential
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nAs a Senior Equipment Safety Engineer at Helion, you will play a critical role in ensuring the safety, compliance, and operational readiness of our rapidly scaling manufacturing and R&D environments. You'll collaborate across engineering, operations, and safety teams to ensure new and modified equipment meets rigorous design, regulatory, and performance standards. As the Senior Equipment Safety Engineer you will also help stand up our equipment safety sign off process and support manufacturing process design. This is an onsite role that reports to the Senior EHS Manager at our Everett, WA office.\n\nYou Will:\n\n - Conduct Risk Assessments for new and modified equipment in accordance with ISO 12100 and ANSI B11 standards\n\n - Create and stand up our equipment safety sign off process and support manufacturing process design\n\n - Partner with engineering, operations, and vendor teams to review and approve equipment designs, ensuring safe integration and lifecycle performance\n\n - Develop and maintain equipment safety standards, SOPs, and training programs to support safe operations\n\n - Manage regulatory compliance and documentation, including CE marking, UL/NRTL certification, and coordination with third-party testing agencies.\n\n - Support control system safety integration for new machinery, including safety PLCs, interlocks, and emergency stop systems\n\n - Advise cross-functional teams on best practices for equipment design, guarding, and risk mitigation\n\n - Provide technical leadership in machine safety engineering, helping scale Helion's equipment safety framework across new facilities and production lines\n\nRequired Skills & Experience:\n\n - Bachelor's degree in Mechanical, Electrical, Industrial, or Safety Engineering, or related field\n\n - 5+ years of experience in equipment safety, machine design, or industrial automation within manufacturing, energy, or R&D environments\n\n - Deep understanding of ISO 12100, ANSI B11, and OSHA 1910 Subpart O standards\n\n - Experience with control system safety integration, including functional safety (SIL/PL) concepts\n\n - Familiarity with CE, UL, and NRTL certification processes\n\n - Proven ability to collaborate across disciplines to deliver safe, compliant equipment designs\n\n - Strong analytical and communication skills with the ability to translate technical safety requirements into practical solutions\n\n - Preferred certifications: CSP, CMSE®, TÜV Functional Safety Engineer, or equivalent machine safety credential\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"9a2f04d6-9fe1-4d87-8d7e-77877a418ac2","title":"Manager, Electrical Engineering","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T18:31:03.969+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/9a2f04d6-9fe1-4d87-8d7e-77877a418ac2","applyUrl":"https://jobs.ashbyhq.com/helion/9a2f04d6-9fe1-4d87-8d7e-77877a418ac2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 high-voltage 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. You will report to the Senior Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.
You Will:
Grow and mentor a team of multidisciplinary electrical engineers
Oversee design of machine architecture, pulsed power circuits, grid-interfacing systems, and circuit modeling including plasma coupling
Drive schedule ownership and optimization across the team to accelerate milestone achievement
Lead design, analysis, and process improvements to increase engineering throughput
Collaborate with Research, Mechanical, and Production teams to derive system requirements and meet program goals
Required Skills:
Bachelor’s degree in Engineering or a related discipline
7+ years of engineering experience, including 2+ years in a technical leadership or management role
Proven ability to grow engineers and positively impact their career progression
Experience leading multidisciplinary teams with full project ownership
Demonstrated success managing complex engineering projects with schedule accountability
Hands-on experience across multiple engineering disciplines such as electrical, mechanical, and manufacturing
Ability to apply first-principles thinking to solve complex technical problems
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 high-voltage 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. 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 - Grow and mentor a team of multidisciplinary electrical engineers\n\n - Oversee design of machine architecture, pulsed power circuits, grid-interfacing systems, and circuit modeling including plasma coupling\n\n - Drive schedule ownership and optimization across the team to accelerate milestone achievement\n\n - Lead design, analysis, and process improvements to increase engineering throughput\n\n - Collaborate with Research, Mechanical, and Production teams to derive system requirements and meet program goals\n\nRequired Skills:\n\n - Bachelor’s degree in Engineering or a related discipline\n\n - 7+ years of engineering experience, including 2+ years in a technical leadership or management role\n\n - Proven ability to grow engineers and positively impact their career progression\n\n - Experience leading multidisciplinary teams with full project ownership\n\n - Demonstrated success managing complex engineering projects with schedule accountability\n\n - Hands-on experience across multiple engineering disciplines such as electrical, mechanical, and manufacturing\n\n - Ability to apply first-principles thinking to solve complex technical problems\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T18:56:37.657+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 is an onsite role that reports directly to the Senior Manager of Mechanical Engineering at our Everett, WA office.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 is an onsite role that reports directly to the Senior Manager of Mechanical Engineering at our Everett, WA office.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:00:49.716+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:04:10.607+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 is an onsite role that reports directly to Senior Manager of Mechanical Engineering at our Everett, WA, office.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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 is an onsite role that reports directly to Senior Manager of Mechanical Engineering at our Everett, WA, office.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"05b910bc-8c44-41e4-8ee8-3ccdec7b9a6f","title":"Senior Firmware Engineer","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:18:03.427+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/05b910bc-8c44-41e4-8ee8-3ccdec7b9a6f","applyUrl":"https://jobs.ashbyhq.com/helion/05b910bc-8c44-41e4-8ee8-3ccdec7b9a6f/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Firmware Engineer, you will develop the embedded systems that power the control, diagnostics, and protection layers of our fusion machines. You’ll write and maintain firmware that runs on thousands of distributed embedded devices controlling and monitoring tens of thousands of sensors, actuators, and data channels. This role bridges hardware and software — you’ll work closely with electrical and software engineers to design reliable, scalable, and high-performance control and data acquisition systems. You’ll help define communication protocols, improve time synchronization across embedded networks, and automate hardware bring-up and testing. This position is ideal for an engineer who enjoys working close to the metal, debugging complex systems, and rapidly iterating on real-world hardware to make fusion power a practical reality. This role requires onsite presence, and you will report directly to our Lead Electrical Engineer at our Everett, WA, office.
You Will:
Develop, test, and maintain firmware for real-time embedded systems used in machine control and diagnostics.
Work closely with hardware and software engineers to translate system requirements into embedded designs.
Bring up new boards, sensors, and actuators — debugging with oscilloscopes, logic analyzers, and JTAG interfaces.
Implement and maintain low-level communication protocols (UART, SPI, I²C, CAN, EtherCAT, etc.).
Design and refine embedded command interfaces, configuration utilities, and automated test frameworks.
Optimize performance, reliability, and timing synchronization across distributed embedded systems.
Contribute to continuous improvement of embedded toolchains, build systems, and test automation.
Rapidly prototype novel control and measurement concepts to support new machine architectures.
Collaborate across disciplines to ensure firmware integrates seamlessly with high-level software and data systems.
Required Skills:
BS or higher in Electrical Engineering, Computer Engineering, or Computer Science.
8+ years of experience developing embedded systems in C, C++, and/or Rust.
Experience with real-time MCU development (bare metal or RTOS-based).
Strong understanding of digital communication protocols (UART, SPI, I²C).
Familiarity with mixed-signal circuit design and debugging using oscilloscopes, DMMs, and logic analyzers.
Experience with version control systems (Git).
Scripting experience in Python for automation, hardware bring-up, or testing.
Solid grasp of embedded systems fundamentals: power, timing, data, and memory budgets.
Experience developing and debugging on Linux-based systems.
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Firmware Engineer, you will develop the embedded systems that power the control, diagnostics, and protection layers of our fusion machines. You’ll write and maintain firmware that runs on thousands of distributed embedded devices controlling and monitoring tens of thousands of sensors, actuators, and data channels. This role bridges hardware and software — you’ll work closely with electrical and software engineers to design reliable, scalable, and high-performance control and data acquisition systems. You’ll help define communication protocols, improve time synchronization across embedded networks, and automate hardware bring-up and testing. This position is ideal for an engineer who enjoys working close to the metal, debugging complex systems, and rapidly iterating on real-world hardware to make fusion power a practical reality. This role requires onsite presence, and you will report directly to our Lead Electrical Engineer at our Everett, WA, office.\n\nYou Will:\n\n - Develop, test, and maintain firmware for real-time embedded systems used in machine control and diagnostics.\n\n - Work closely with hardware and software engineers to translate system requirements into embedded designs.\n\n - Bring up new boards, sensors, and actuators — debugging with oscilloscopes, logic analyzers, and JTAG interfaces.\n\n - Implement and maintain low-level communication protocols (UART, SPI, I²C, CAN, EtherCAT, etc.).\n\n - Design and refine embedded command interfaces, configuration utilities, and automated test frameworks.\n\n - Optimize performance, reliability, and timing synchronization across distributed embedded systems.\n\n - Contribute to continuous improvement of embedded toolchains, build systems, and test automation.\n\n - Rapidly prototype novel control and measurement concepts to support new machine architectures.\n\n - Collaborate across disciplines to ensure firmware integrates seamlessly with high-level software and data systems.\n\nRequired Skills:\n\n - BS or higher in Electrical Engineering, Computer Engineering, or Computer Science.\n\n - 8+ years of experience developing embedded systems in C, C++, and/or Rust.\n\n - Experience with real-time MCU development (bare metal or RTOS-based).\n\n - Strong understanding of digital communication protocols (UART, SPI, I²C).\n\n - Familiarity with mixed-signal circuit design and debugging using oscilloscopes, DMMs, and logic analyzers.\n\n - Experience with version control systems (Git).\n\n - Scripting experience in Python for automation, hardware bring-up, or testing.\n\n - Solid grasp of embedded systems fundamentals: power, timing, data, and memory budgets.\n\n - Experience developing and debugging on Linux-based systems.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:21:41.553+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:26:14.890+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.
You Will:
Own and understand designs related to thermal, fluids, 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 (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
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Own and understand designs related to thermal, fluids, 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 (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\n\n - Troubleshoot hardware issues as they arise on integrated fusion generators\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"708c511b-b1cc-4828-9b28-c84f21865db2","title":"Senior Mechanical Engineer, Fluids","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:27:27.823+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/708c511b-b1cc-4828-9b28-c84f21865db2","applyUrl":"https://jobs.ashbyhq.com/helion/708c511b-b1cc-4828-9b28-c84f21865db2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.
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
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.\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 - 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:45:39.490+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. \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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-12-19T19:47:11.344+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. \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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"4e875f71-8d2e-41a6-951a-690132c46b0c","title":"Supplier Development Engineer, Mechanical","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-12-19T19:53:20.056+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4e875f71-8d2e-41a6-951a-690132c46b0c","applyUrl":"https://jobs.ashbyhq.com/helion/4e875f71-8d2e-41a6-951a-690132c46b0c/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and 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:
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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. You will report to the Senior Manager of Engineering, and 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 - 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"340ddf26-4616-43b0-9f9d-444c7b159b02","title":"Talent Sourcer","department":"Talent","team":"Talent","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-04-22T22:07:23.849+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/340ddf26-4616-43b0-9f9d-444c7b159b02","applyUrl":"https://jobs.ashbyhq.com/helion/340ddf26-4616-43b0-9f9d-444c7b159b02/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Talent Sourcer, you’ll play a central role in building Helion’s technical teams by identifying and engaging hard-to-find talent for our highest-priority roles. You’ll run targeted outbound efforts, reach candidates who aren’t actively on the market, and partner closely with recruiters and hiring managers to build strong, intentional pipelines for critical work. This is an onsite role based in Everett, WA, reporting to the Talent Acquisition Manager.This is an onsite role that reports directly to the Talent Acquisition Manager at our Everett, WA office.
Transform hiring leader requirements into compelling opportunity messages that achieve high response rates from targeted outreach
Leverage competitive intelligence to identify and engage top technical talent from organizations with relevant expertise
Apply performance-based interviewing techniques to predict on-the-job success, not just technical qualifications
Build and maintain a pipeline of qualified candidates for current and future technical roles
Partner with hiring managers to understand role requirements and ideal candidate profiles
Track sourcing metrics and optimize outreach strategies based on performance data
3+ years of experience finding and engaging individuals not looking for new opportunities
Demonstrated perseverance in outbound sourcing and candidate engagement
Experience using total addressable market data to identify and target candidate pools
Strong written and verbal communication skills for candidate outreach and engagement
Experience with sourcing tools and platforms to identify and research potential candidates
Ability to work in a fast-paced environment while maintaining attention to detail
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nAs a Talent Sourcer, you’ll play a central role in building Helion’s technical teams by identifying and engaging hard-to-find talent for our highest-priority roles. You’ll run targeted outbound efforts, reach candidates who aren’t actively on the market, and partner closely with recruiters and hiring managers to build strong, intentional pipelines for critical work. This is an onsite role based in Everett, WA, reporting to the Talent Acquisition Manager.This is an onsite role that reports directly to the Talent Acquisition Manager at our Everett, WA office.\n\n\nYOU WILL:\n\n - Transform hiring leader requirements into compelling opportunity messages that achieve high response rates from targeted outreach\n\n - Leverage competitive intelligence to identify and engage top technical talent from organizations with relevant expertise\n\n - Apply performance-based interviewing techniques to predict on-the-job success, not just technical qualifications\n\n - Build and maintain a pipeline of qualified candidates for current and future technical roles\n\n - Partner with hiring managers to understand role requirements and ideal candidate profiles\n\n - Track sourcing metrics and optimize outreach strategies based on performance data\n\n\nREQUIRED SKILLS:\n\n - 3+ years of experience finding and engaging individuals not looking for new opportunities\n\n - Demonstrated perseverance in outbound sourcing and candidate engagement\n\n - Experience using total addressable market data to identify and target candidate pools\n\n - Strong written and verbal communication skills for candidate outreach and engagement\n\n - Experience with sourcing tools and platforms to identify and research potential candidates\n\n - Ability to work in a fast-paced environment while maintaining attention to detail\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2025-06-07T01:16:32.069+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 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 isn’t a routine technician role. It’s a hands-on engineering role for people who like solving hard problems, building first-of-a-kind hardware, and working in a fast-paced R&D environment where each day brings new challenges and opportunities to build, test, and advance the next generation of fusion energy systems.
One day, you might be installing diagnostics or troubleshooting high-voltage pulsed power systems. Next, you could be fabricating a rapid prototype, integrating new instrumentation, or helping reconfigure a test bay to support the next phase of development.
You Will:
Support the operation, maintenance, and ongoing development of Polaris and future generations of Helion fusion systems
Collaborate with a multidisciplinary team to fabricate, assemble, test, troubleshoot, deploy, operate, maintain, and repair complex mechanical, electrical, and electronic systems
Install, align, and maintain high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems
Fabricate one-of-a-kind prototypes, assemblies, fixtures, and instrumentation enclosures, supporting rapid design iterations from engineering concepts
Perform PCB assembly, soldering, rework, and custom cable fabrication
Install and integrate diagnostics, sensors, cameras, and scientific instrumentation used to monitor and support system development
Support upgrades, modifications, and reconfiguration of experimental test bays to enable evolving research and development work
Operate safely at heights using scissor lifts and fall protection systems within Helion facilities
Communicate project progress, technical issues, and system status with engineers and technical owners
Create and maintain technical documentation, build records, and inventory of parts and consumables while maintaining a strong commitment to safety and operational excellence
Support either our 6:00 am to 2:30 pm OR 11:00 am to 7:30 pm work schedule, Monday through Friday at our Everett, WA office
Required Skills:
5+ years of hands-on experience building, integrating, testing, or operating complex electromechanical or experimental hardware systems
Demonstrated ability to develop first-of-a-kind hardware and solve complex technical challenges where solutions are not always immediately obvious
Ability to operate effectively in fast-paced R&D environments where priorities shift and new hardware is continuously being developed and integrated
Experience troubleshooting complex electrical, mechanical, and instrumentation systems in experimental or industrial environments
Strong hands-on fabrication and prototyping skills, including machining, fixture design, mechanical assembly, and rapid hardware iteration
Ability to work safely at heights using ladders, scissor lifts, and fall protection equipment
Proficiency with electrical systems and electronics assembly, including wiring harnesses, cable fabrication, soldering, PCB assembly, and signal routing
Familiarity working with instrumentation and diagnostic systems, including sensors, cameras, and precision measurement equipment
Experience interpreting technical drawings, electrical schematics, and engineering documentation
Strong communication and organizational skills with the ability to maintain build documentation, test records, and technical notes while operating to high standards of safety and quality
Preferred Skills:
Background working with high voltage electrical systems (200V+)
Working knowledge of vacuum systems, including high or ultra-high vacuum environments (<10⁻³ Torr)
Hands-on work with scientific instrumentation and diagnostic systems
Experience supporting experimental test infrastructure or research hardware platforms
Exposure to experimental physics, plasma systems, aerospace systems, or advanced energy 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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 isn’t a routine technician role. It’s a hands-on engineering role for people who like solving hard problems, building first-of-a-kind hardware, and working in a fast-paced R&D environment where each day brings new challenges and opportunities to build, test, and advance the next generation of fusion energy systems.\n\nOne day, you might be installing diagnostics or troubleshooting high-voltage pulsed power systems. Next, you could be fabricating a rapid prototype, integrating new instrumentation, or helping reconfigure a test bay to support the next phase of development.\n\nYou Will:\n\n - Support the operation, maintenance, and ongoing development of Polaris and future generations of Helion fusion systems\n\n - Collaborate with a multidisciplinary team to fabricate, assemble, test, troubleshoot, deploy, operate, maintain, and repair complex mechanical, electrical, and electronic systems\n\n - Install, align, and maintain high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems\n\n - Fabricate one-of-a-kind prototypes, assemblies, fixtures, and instrumentation enclosures, supporting rapid design iterations from engineering concepts\n\n - Perform PCB assembly, soldering, rework, and custom cable fabrication\n\n - Install and integrate diagnostics, sensors, cameras, and scientific instrumentation used to monitor and support system development\n\n - Support upgrades, modifications, and reconfiguration of experimental test bays to enable evolving research and development work\n\n - Operate safely at heights using scissor lifts and fall protection systems within Helion facilities\n\n - Communicate project progress, technical issues, and system status with engineers and technical owners\n\n - Create and maintain technical documentation, build records, and inventory of parts and consumables while maintaining a strong commitment to safety and operational excellence\n\n - Support either our 6:00 am to 2:30 pm OR 11:00 am to 7:30 pm work schedule, Monday through Friday at our Everett, WA office\n\nRequired Skills:\n\n - 5+ years of hands-on experience building, integrating, testing, or operating complex electromechanical or experimental hardware systems\n\n - Demonstrated ability to develop first-of-a-kind hardware and solve complex technical challenges where solutions are not always immediately obvious\n\n - Ability to operate effectively in fast-paced R&D environments where priorities shift and new hardware is continuously being developed and integrated\n\n - Experience troubleshooting complex electrical, mechanical, and instrumentation systems in experimental or industrial environments\n\n - Strong hands-on fabrication and prototyping skills, including machining, fixture design, mechanical assembly, and rapid hardware iteration\n\n - Ability to work safely at heights using ladders, scissor lifts, and fall protection equipment\n\n - Proficiency with electrical systems and electronics assembly, including wiring harnesses, cable fabrication, soldering, PCB assembly, and signal routing\n\n - Familiarity working with instrumentation and diagnostic systems, including sensors, cameras, and precision measurement equipment\n\n - Experience interpreting technical drawings, electrical schematics, and engineering documentation\n\n - Strong communication and organizational skills with the ability to maintain build documentation, test records, and technical notes while operating to high standards of safety and quality\n\nPreferred Skills:\n\n - Background working with high voltage electrical systems (200V+)\n\n - Working knowledge of vacuum systems, including high or ultra-high vacuum environments (<10⁻³ Torr)\n\n - Hands-on work with scientific instrumentation and diagnostic systems\n\n - Experience supporting experimental test infrastructure or research hardware platforms\n\n - Exposure to experimental physics, plasma systems, aerospace systems, or advanced energy 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"781d827d-e5a7-4d03-ad01-dea9902d9ef6","title":"Global Supply Manager, Electronics","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2025-11-14T17:48:04.054+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/781d827d-e5a7-4d03-ad01-dea9902d9ef6","applyUrl":"https://jobs.ashbyhq.com/helion/781d827d-e5a7-4d03-ad01-dea9902d9ef6/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Global Supply Manager to lead the development and scaling of a world-class supply chain for next-generation energy systems. In this role, you will own strategic sourcing initiatives across complex electromechanical and custom electronics, partnering closely with engineering to bring first-of-a-kind hardware from prototype through production. 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
Source electronic components and assemblies in collaboration with engineering and production. Drive BOM cost reductions and secure vendor capacity to support schedule requirements.
Identify new vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain.
Lead bidding efforts. Negotiate contract terms and manage existing contracts with vendors including manufacturing service agreements, stocking programs, non-disclosure agreements, etc.
Lead initiatives and projects cross-functionally.
Create purchase orders, resolve invoice and receiving snags. Maintain accurate ERP vendor and open order data.
Required Skills:
Strategic Supply Chain Leadership: Ownership of high value spend ($100M+) with a track record of building and scaling resilient, global supply chains and long-term supplier partnerships in capital-intensive industries.
Technical Sourcing & Industrialization Expertise: Deep experience sourcing complex electromechanical systems and capital equipment, including transitioning from R&D/prototype to pilot and early production at scale.
Supplier Development & Risk Management: Proven ability to identify, qualify, and ramp new suppliers while managing risk through strategies like dual sourcing, long lead-time mitigation, and make-vs-buy analysis.
Cross-Functional Influence & Engineering Partnership: Strong ability to partner with engineering and program leadership in ambiguous, fast-evolving environments, using data-driven trade studies to influence decisions.
Commercial Acumen & Leadership: Advanced negotiation and contracting experience, combined with the ability to lead cross-functional initiatives, mentor others, and operate effectively in high-growth, mission-driven environments.
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Global Supply Manager to lead the development and scaling of a world-class supply chain for next-generation energy systems. In this role, you will own strategic sourcing initiatives across complex electromechanical and custom electronics, partnering closely with engineering to bring first-of-a-kind hardware from prototype through production. 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.\n\nYou Will\n\n - Source electronic components and assemblies in collaboration with engineering and production. Drive BOM cost reductions and secure vendor capacity to support schedule requirements.\n\n - Identify new vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain.\n\n - Lead bidding efforts. Negotiate contract terms and manage existing contracts with vendors including manufacturing service agreements, stocking programs, non-disclosure agreements, etc.\n\n - Lead initiatives and projects cross-functionally.\n\n - Create purchase orders, resolve invoice and receiving snags. Maintain accurate ERP vendor and open order data.\n\nRequired Skills:\n\n - Strategic Supply Chain Leadership: Ownership of high value spend ($100M+) with a track record of building and scaling resilient, global supply chains and long-term supplier partnerships in capital-intensive industries.\n\n - Technical Sourcing & Industrialization Expertise: Deep experience sourcing complex electromechanical systems and capital equipment, including transitioning from R&D/prototype to pilot and early production at scale.\n\n - Supplier Development & Risk Management: Proven ability to identify, qualify, and ramp new suppliers while managing risk through strategies like dual sourcing, long lead-time mitigation, and make-vs-buy analysis.\n\n - Cross-Functional Influence & Engineering Partnership: Strong ability to partner with engineering and program leadership in ambiguous, fast-evolving environments, using data-driven trade studies to influence decisions.\n\n - Commercial Acumen & Leadership: Advanced negotiation and contracting experience, combined with the ability to lead cross-functional initiatives, mentor others, and operate effectively in high-growth, mission-driven environments.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"3118c2a4-e3a1-48c1-8d44-ed4adb8801eb","title":"Manual Machinist","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-28T01:02:02.031+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/3118c2a4-e3a1-48c1-8d44-ed4adb8801eb","applyUrl":"https://jobs.ashbyhq.com/helion/3118c2a4-e3a1-48c1-8d44-ed4adb8801eb/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 build and modify hardware prototypes in a machine shop environment. Using your hands-on skills, you’ll support science, engineering, and R&D projects, assist others in the use of shop tools, and help maintain a safe, organized, and productive workspace. You will report to one of our Production Managers and this is an onsite role located at our Everett, WA office.
You Will:
Perform basic machining tasks to fabricate or modify parts
Accept new projects and complete them promptly and accurately
Follow company safety procedures while performing all work
Maintain accurate records of work performed and materials used
Keep tools and equipment clean, organized, and in good working condition
Required Skills:
Experience operating a horizontal band saw, TRAK-style conversational mill, manual lathe
Proficiency with accurate drilling and tapping techniques
Experience working with materials such as aluminum, stainless steel, copper, brass, fiberglass, and plastic
Ability to read and interpret technical drawings, schematics, and manuals
At least 1 year of experience following detailed procedures with high accuracy
Comfortable working independently and collaborating as part of a team
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 What You Will Be Doing:\n\nYou will build and modify hardware prototypes in a machine shop environment. Using your hands-on skills, you’ll support science, engineering, and R&D projects, assist others in the use of shop tools, and help maintain a safe, organized, and productive workspace. You will report to one of our Production Managers and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Perform basic machining tasks to fabricate or modify parts\n\n - Accept new projects and complete them promptly and accurately\n\n - Follow company safety procedures while performing all work\n\n - Maintain accurate records of work performed and materials used\n\n - Keep tools and equipment clean, organized, and in good working condition\n\nRequired Skills:\n\n - Experience operating a horizontal band saw, TRAK-style conversational mill, manual lathe\n\n - Proficiency with accurate drilling and tapping techniques\n\n - Experience working with materials such as aluminum, stainless steel, copper, brass, fiberglass, and plastic\n\n - Ability to read and interpret technical drawings, schematics, and manuals\n\n - At least 1 year of experience following detailed procedures with high accuracy\n\n - Comfortable working independently and collaborating as part of a team\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"4f1fcc7d-c8fe-47bd-8883-f9cf4e5dccc3","title":"Manager, Plant Control Engineering","department":"Electrical Engineering","team":"Electrical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-01-15T21:06:59.214+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4f1fcc7d-c8fe-47bd-8883-f9cf4e5dccc3","applyUrl":"https://jobs.ashbyhq.com/helion/4f1fcc7d-c8fe-47bd-8883-f9cf4e5dccc3/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 grow and lead a team that bridges physics, electrical design, software engineering, and operations — creating a unified platform that allows fusion machines to operate efficiently, adapt to grid conditions, and evolve toward commercial reliability. You will report to the Senior Manager of Electrical Engineering and this is an onsite role located at our Everett, WA office.
You will:
Build and lead a multidisciplinary team of software, firmware, and electrical engineers developing the full control stack for a fusion power plant — from embedded controllers to supervisory automation and data pipelines
Own the plant-level control system — both the closed-loop control of critical subsystems (thermal management, grid interface, uptime management) and the supervisory coordination layer that orchestrates overall plant behavior
Guide system design and implementation of hardware and software for reliable, real-time control, ensuring consistent plant performance during scheduled operations and dynamic grid events
Coordinate cross-disciplinary development between hardware owners, data analysts, and operations teams to translate machine capability and experimental intent into robust, testable control logic
Develop front-end control and visualization interfaces that support both rapid experimental iteration and long-term automated operation
Architect scalable back-end data systems capable of acquiring and correlating signals and events spanning nanoseconds to weeks — integrating high-speed acquisition hardware, streaming frameworks, and long-term storage systems
Drive design reviews, reliability improvements, and fault response strategies that maximize plant uptime and ensure graceful recovery from operational faults
Mentor and grow a world-class technical team, balancing hands-on leadership with long-term vision for automation and control of fusion plants at commercial scale
Required Skills & Experience
Bachelor’s degree in Engineering or a related discipline
7+ years of engineering experience, including 2+ years in a technical leadership or management role
Proven experience leading or managing multidisciplinary engineering teams (software, firmware, and electrical)
Deep technical understanding of real-time or embedded control systems, including firmware and hardware interface design
Proficiency with software development and deployment in languages such as Python, C/C++, or Rust
Experience with control system frameworks (e.g., EPICS, ROS, or custom industrial control architectures)
Familiarity with analog and digital circuit fundamentals, embedded processor design, and hardware bring-up
Strong background in data acquisition and signal processing — from high-speed transient capture to long-term trend analysis
Understanding of networked control and telemetry systems, including message buses, data serialization, and fault-tolerant design
Demonstrated ability to deliver integrated hardware-software systems in complex, high-reliability environments
Excellent cross-disciplinary communication skills and ability to work across research, hardware, and operations 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 grow and lead a team that bridges physics, electrical design, software engineering, and operations — creating a unified platform that allows fusion machines to operate efficiently, adapt to grid conditions, and evolve toward commercial reliability. 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 - Build and lead a multidisciplinary team of software, firmware, and electrical engineers developing the full control stack for a fusion power plant — from embedded controllers to supervisory automation and data pipelines\n\n - Own the plant-level control system — both the closed-loop control of critical subsystems (thermal management, grid interface, uptime management) and the supervisory coordination layer that orchestrates overall plant behavior\n\n - Guide system design and implementation of hardware and software for reliable, real-time control, ensuring consistent plant performance during scheduled operations and dynamic grid events\n\n - Coordinate cross-disciplinary development between hardware owners, data analysts, and operations teams to translate machine capability and experimental intent into robust, testable control logic\n\n - Develop front-end control and visualization interfaces that support both rapid experimental iteration and long-term automated operation\n\n - Architect scalable back-end data systems capable of acquiring and correlating signals and events spanning nanoseconds to weeks — integrating high-speed acquisition hardware, streaming frameworks, and long-term storage systems\n\n - Drive design reviews, reliability improvements, and fault response strategies that maximize plant uptime and ensure graceful recovery from operational faults\n\n - Mentor and grow a world-class technical team, balancing hands-on leadership with long-term vision for automation and control of fusion plants at commercial scale\n\nRequired Skills & Experience\n\n \n\n - Bachelor’s degree in Engineering or a related discipline\n\n - 7+ years of engineering experience, including 2+ years in a technical leadership or management role\n\n - Proven experience leading or managing multidisciplinary engineering teams (software, firmware, and electrical)\n\n - Deep technical understanding of real-time or embedded control systems, including firmware and hardware interface design\n\n - Proficiency with software development and deployment in languages such as Python, C/C++, or Rust\n\n - Experience with control system frameworks (e.g., EPICS, ROS, or custom industrial control architectures)\n\n - Familiarity with analog and digital circuit fundamentals, embedded processor design, and hardware bring-up\n\n - Strong background in data acquisition and signal processing — from high-speed transient capture to long-term trend analysis\n\n - Understanding of networked control and telemetry systems, including message buses, data serialization, and fault-tolerant design\n\n - Demonstrated ability to deliver integrated hardware-software systems in complex, high-reliability environments\n\n - Excellent cross-disciplinary communication skills and ability to work across research, hardware, and operations 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-01-30T22:11:03.963+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report to the Senior Manager of Engineering, and this is an onsite role located at our Everett, WA office.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-01-20T18:33:12.575+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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-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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"05590388-a455-43a3-a046-4a374303f200","title":"Operations Manager, Fusion Plant","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-22T23:36:16.582+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/05590388-a455-43a3-a046-4a374303f200","applyUrl":"https://jobs.ashbyhq.com/helion/05590388-a455-43a3-a046-4a374303f200/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Operations Manager builds, leads, and scales Helion’s technician organization while maturing fusion machine maintenance capabilities. This role establishes foundational maintenance processes and ensures safe, high-quality execution of repair, upgrade, and preventative maintenance work across R&D and test environments. You will play a key role in Helion’s transition from prototype to commercial fusion machine operations.
This is a hands-on leadership position combining people management, technical execution, and program ownership. You will report to the R&D Manager, onsite in our Everett, WA office.
This role will be Monday-Friday.
You Will:
Oversee and coordinate activities of the R&D technicians and supervisors, including scheduling, project assignment, and performance monitoring
Provide mentorship and reinforce best practices to continuously raise team standards and technical capabilities
Hire and develop supervisors and technicians, and own long-term staffing strategies aligned to program milestones
Independently install, troubleshoot, test, inspect, repair, and service lab systems including high-voltage power supplies, charging systems, pulse power capacitors, vacuum systems, and plasma systems
Coordinate the preventative maintenance on lab and test equipment to ensure operational readiness across multiple fusion protype machines
Ensure compliance with all safety regulations and protocols, including radiation protection and environmental standards
Maintain quality control procedures that exceed industry standards
Keep accurate records related to operations, inventory, and equipment maintenance
Drive schedule ownership and milestone delivery across the research and development technician team
Interface with engineering and manufacturing teams to inform design improvements and optimize machine maintenance plans
Required Qualifications
7+ years managing technicians or supervisors in R&D, laboratory, or complex machine environments
Proven ability to hire, mentor, and grow technical teams and frontline leaders
Experience owning complex maintenance or technical execution schedules
Strong cross-functional communication and stakeholder management skills
Hands-on electromechanical troubleshooting experience; comfortable in industrial and confined environments
Ability to manage multiple priorities in a fast-paced, hardware-driven organization
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Operations Manager builds, leads, and scales Helion’s technician organization while maturing fusion machine maintenance capabilities. This role establishes foundational maintenance processes and ensures safe, high-quality execution of repair, upgrade, and preventative maintenance work across R&D and test environments. You will play a key role in Helion’s transition from prototype to commercial fusion machine operations. \n\nThis is a hands-on leadership position combining people management, technical execution, and program ownership. You will report to the R&D Manager, onsite in our Everett, WA office. \n\nThis role will be Monday-Friday. \n\nYou Will: \n\n - Oversee and coordinate activities of the R&D technicians and supervisors, including scheduling, project assignment, and performance monitoring \n\n - Provide mentorship and reinforce best practices to continuously raise team standards and technical capabilities \n\n - Hire and develop supervisors and technicians, and own long-term staffing strategies aligned to program milestones \n\n - Independently install, troubleshoot, test, inspect, repair, and service lab systems including high-voltage power supplies, charging systems, pulse power capacitors, vacuum systems, and plasma systems \n\n - Coordinate the preventative maintenance on lab and test equipment to ensure operational readiness across multiple fusion protype machines \n\n - Ensure compliance with all safety regulations and protocols, including radiation protection and environmental standards \n\n - Maintain quality control procedures that exceed industry standards \n\n - Keep accurate records related to operations, inventory, and equipment maintenance \n\n - Drive schedule ownership and milestone delivery across the research and development technician team \n\n - Interface with engineering and manufacturing teams to inform design improvements and optimize machine maintenance plans \n\nRequired Qualifications \n\n - 7+ years managing technicians or supervisors in R&D, laboratory, or complex machine environments \n\n - Proven ability to hire, mentor, and grow technical teams and frontline leaders \n\n - Experience owning complex maintenance or technical execution schedules \n\n - Strong cross-functional communication and stakeholder management skills \n\n - Hands-on electromechanical troubleshooting experience; comfortable in industrial and confined environments \n\n - Ability to manage multiple priorities in a fast-paced, hardware-driven organization \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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"Applied AI 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 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
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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\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\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 Plasma Data Scientist","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-01-21T15:58:47.745+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 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
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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\n#LI-Onsite #LI-TG1\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"4bc04ac1-056f-47b1-a66e-1fa4ce7507c4","title":"Director of Supply Chain","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-01-24T04:45:03.379+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/4bc04ac1-056f-47b1-a66e-1fa4ce7507c4","applyUrl":"https://jobs.ashbyhq.com/helion/4bc04ac1-056f-47b1-a66e-1fa4ce7507c4/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 strategy, operations, quality, and personnel development of Helion’s Supply Chain organization. In close partnership with company leadership, you will define and execute scalable processes that align with business goals, support long-term planning for generator components, and prepare for facility expansion. You will report to the VP of Manufacturing & Supply Chain, and this is an onsite role located at our Everett, WA office.
You Will:
Define and implement strategic goals to streamline and scale supply chain operations
Establish business plans and lead purchasing and supply chain teams to achieve operational objectives
Collaborate with leaders across Helion to align supply chain planning with timelines for generator components and new facility logistics
Develop systems and processes for evaluating and building a network of suppliers based on capability and capacity
Act as the operational lead for selecting and implementing supply chain software, tools, and procedures
Drive strategic planning and execution of special projects across the organization
Required Skills:
Demonstrated experience in progressively senior roles within operations, production, or purchasing functions
Experience managing cross-functional teams in a high-growth environment
Proven success in standing up production lines, programs, or assembly operations under tight timelines
Experience working in a technology or research-driven startup
Direct experience owning and solving complex organizational or logistical challenges
Strong organizational, written, and verbal communication skills
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 strategy, operations, quality, and personnel development of Helion’s Supply Chain organization. In close partnership with company leadership, you will define and execute scalable processes that align with business goals, support long-term planning for generator components, and prepare for facility expansion. You will report to the VP of Manufacturing & Supply Chain, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Define and implement strategic goals to streamline and scale supply chain operations\n\n - Establish business plans and lead purchasing and supply chain teams to achieve operational objectives\n\n - Collaborate with leaders across Helion to align supply chain planning with timelines for generator components and new facility logistics\n\n - Develop systems and processes for evaluating and building a network of suppliers based on capability and capacity\n\n - Act as the operational lead for selecting and implementing supply chain software, tools, and procedures\n\n - Drive strategic planning and execution of special projects across the organization\n\nRequired Skills:\n\n - Demonstrated experience in progressively senior roles within operations, production, or purchasing functions\n\n - Experience managing cross-functional teams in a high-growth environment\n\n - Proven success in standing up production lines, programs, or assembly operations under tight timelines\n\n - Experience working in a technology or research-driven startup\n\n - Direct experience owning and solving complex organizational or logistical challenges\n\n - Strong organizational, written, and verbal communication skills\n\n#LI-Onsite\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"Manager, Experimental Science","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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Experimental Science 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 Experimental 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
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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:\nWe are looking for a Manager of Experimental Science 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 Experimental 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\n#LI-Onsite #LI-TG1\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-01-28T04:37:47.068+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report directly to our Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.
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 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)
Experience designing, testing, and launching production hardware at scale
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)
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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. You will report directly to our Manager of Mechanical Engineering, and this is an onsite role located at our Everett, WA office.\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 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 - Experience designing, testing, and launching production hardware at scale\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)\n\n#LI-Onsite\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-01-30T22:15:23.715+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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. You will report to a Mechanical Engineering Manager, and 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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. You will report to a Mechanical Engineering Manager, and 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"9ec8f013-bd5f-4951-b7d5-a2f23c69d5d2","title":"Inspection Supervisor","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-04T17:36:23.665+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/9ec8f013-bd5f-4951-b7d5-a2f23c69d5d2","applyUrl":"https://jobs.ashbyhq.com/helion/9ec8f013-bd5f-4951-b7d5-a2f23c69d5d2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 and develop a team of Inspectors responsible for ensuring the quality, compliance, and readiness of components and assemblies across Helion’s production and development programs. In this role, you will manage daily inspection priorities and workflows, uphold rigorous quality and safety standards, and partner closely with Design Engineers, Building Reliability Engineers, Production Teams to ensure consistent inspection coverage and reliability throughout the product lifecycle. This is an onsite role reporting to a Production Manager at our Everett, WA office.
You Will:
Champion a culture of safety, quality, and technical rigor by ensuring adherence to build standards
Supervise day-to-day operations of Inspection teams - including scheduling, staffing, and shift coordination to maintain required coverage
Partner with Design, Build Reliability, Manufacturing, and Supplier Development Engineering teams to implement, improve, and sustain inspection processes, tooling, measurement methods, and documentation systems
Monitor team performance, provide coaching and feedback, and drive professional development within the inspection team
Lead hardware containments in collaboration with Build Reliability and Production team
Partner with the Production Training organization to lead development of inspector training and certification programs
Track inspection throughput, identify process bottlenecks, and coordinate cross-functional solutions with engineering and production leadership
Required Skills
3–5 years of supervisory experience, ideally within inspection, quality assurance, production, or R&D environments
Familiarity with mechanical/electrical inspection practices, measurement tools, and quality/safety protocols
Proven ability to hire, lead, and develop technical teams in a fast-paced, safety-critical environment
Strong organizational and communication skills with demonstrated experience managing schedules and priorities across shifts
Skilled in collaborating with Engineers, Supervisors, and cross-functional partners to maintain operational excellence
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 and develop a team of Inspectors responsible for ensuring the quality, compliance, and readiness of components and assemblies across Helion’s production and development programs. In this role, you will manage daily inspection priorities and workflows, uphold rigorous quality and safety standards, and partner closely with Design Engineers, Building Reliability Engineers, Production Teams to ensure consistent inspection coverage and reliability throughout the product lifecycle. This is an onsite role reporting to a Production Manager at our Everett, WA office.\n\nYou Will:\n\n - Champion a culture of safety, quality, and technical rigor by ensuring adherence to build standards\n\n - Supervise day-to-day operations of Inspection teams - including scheduling, staffing, and shift coordination to maintain required coverage\n\n - Partner with Design, Build Reliability, Manufacturing, and Supplier Development Engineering teams to implement, improve, and sustain inspection processes, tooling, measurement methods, and documentation systems\n\n - Monitor team performance, provide coaching and feedback, and drive professional development within the inspection team\n\n - Lead hardware containments in collaboration with Build Reliability and Production team\n\n - Partner with the Production Training organization to lead development of inspector training and certification programs\n\n - Track inspection throughput, identify process bottlenecks, and coordinate cross-functional solutions with engineering and production leadership\n\nRequired Skills\n\n - 3–5 years of supervisory experience, ideally within inspection, quality assurance, production, or R&D environments\n\n - Familiarity with mechanical/electrical inspection practices, measurement tools, and quality/safety protocols\n\n - Proven ability to hire, lead, and develop technical teams in a fast-paced, safety-critical environment\n\n - Strong organizational and communication skills with demonstrated experience managing schedules and priorities across shifts\n\n - Skilled in collaborating with Engineers, Supervisors, and cross-functional partners to maintain operational excellence\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"120eb181-16c1-45fc-b365-62ce4d82f448","title":"Senior Total Rewards Manager","department":"People","team":"People","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-24T00:24:27.105+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/120eb181-16c1-45fc-b365-62ce4d82f448","applyUrl":"https://jobs.ashbyhq.com/helion/120eb181-16c1-45fc-b365-62ce4d82f448/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 evolve Helion’s total rewards function, building scalable, competitive cash, equity, and benefits programs that support a rapidly growing, technically complex organization. This role leads both strategy and execution: overseeing day-to-day total rewards operations while shaping long-term compensation philosophy and design. You will drive compensation and equity planning cycles, refine our equity strategy, and strengthen employee understanding of our total rewards approach through clear education and communication. This is an onsite role reporting to the Director of People and Talent Operations in Everett, WA.
You Will:
Own Helion’s total rewards strategy, including compensation, equity programs, and benefits, while partnering closely with HR, Finance, and Legal teams
Lead and manage company-wide compensation programs, including annual compensation cycles, promotions, performance-based changes, and offer audits
Own and evolve Helion’s equity compensation strategy, including equity plan design, burn-rate management, grant guidelines, and administration
Ensure compliance with applicable employment, pay equity, and benefit regulations across exempt and non-exempt populations
Develop and deliver ongoing compensation and equity education for employees, including training on performance, promotions, and equity value
Required Skills:
10+ years of experience in compensation or total rewards, with demonstrated experience creating and executing company-wide programs
Proven ability of managing complex equity compensation programs within a Pre-IPO, high-growth startup, or technology environment
Experience partnering with Talent and People Business Partners to create competitive compensation strategies that attract top talent while maintaining internal equity and fairness
Hands-on experience partnering with Finance teams to manage compensation planning, equity budgeting, forecasting, and internal equity analyses
Demonstrated experience using data to inform processes and drive the adoption of total rewards programs
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 and evolve Helion’s total rewards function, building scalable, competitive cash, equity, and benefits programs that support a rapidly growing, technically complex organization. This role leads both strategy and execution: overseeing day-to-day total rewards operations while shaping long-term compensation philosophy and design. You will drive compensation and equity planning cycles, refine our equity strategy, and strengthen employee understanding of our total rewards approach through clear education and communication. This is an onsite role reporting to the Director of People and Talent Operations in Everett, WA.\n\nYou Will:\n\n - Own Helion’s total rewards strategy, including compensation, equity programs, and benefits, while partnering closely with HR, Finance, and Legal teams\n\n - Lead and manage company-wide compensation programs, including annual compensation cycles, promotions, performance-based changes, and offer audits\n\n - Own and evolve Helion’s equity compensation strategy, including equity plan design, burn-rate management, grant guidelines, and administration\n\n - Ensure compliance with applicable employment, pay equity, and benefit regulations across exempt and non-exempt populations\n\n - Develop and deliver ongoing compensation and equity education for employees, including training on performance, promotions, and equity value\n\nRequired Skills:\n\n - 10+ years of experience in compensation or total rewards, with demonstrated experience creating and executing company-wide programs\n\n - Proven ability of managing complex equity compensation programs within a Pre-IPO, high-growth startup, or technology environment\n\n - Experience partnering with Talent and People Business Partners to create competitive compensation strategies that attract top talent while maintaining internal equity and fairness\n\n - Hands-on experience partnering with Finance teams to manage compensation planning, equity budgeting, forecasting, and internal equity analyses\n\n - Demonstrated experience using data to inform processes and drive the adoption of total rewards programs\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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, Front End","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-25T20:03:23.408+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Product (Frontend UX/UI) Software Engineer, you’ll bridge the gap between our fusion machine operators and our software stack. You’ll own both the design and the implementation of the interfaces our fusion machine operators use every day. You’ll work directly with operators in the control room, learning their workflows, tools, and pain points to design and implement curated interfaces that improve speed, clarity, and confidence. You’ll own the frontend of critical operator tools, building real-time data visualizations, actionable alerts, and streamlined interactions that let our teams operate the fusion machine with efficiency, safety, and confidence. This is a hands-on role where you’ll design, prototype, and build production-ready software, collaborating across software, hardware, and operator teams. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.
You Will:
Blend frontend engineering and UX/UI design skills to create operator-facing applications.
Embed yourself with machine operators to deeply understand workflows, tools, and challenges.
Work with other software vendors to integrate other applications into our product.
Translate workflows into prototypes, mockups, and then production-ready code.
Consolidate and unify fragmented applications into coherent user experiences.
Build real-time dashboards, alerts, and visualizations that improve situational awareness.
Collaborate with backend/data engineers to integrate complex real-time data streams.
Establish and maintain design patterns, component libraries, and UX standards.
Advocate for operator needs within the broader product and software teams.
Required Skills:
Strong experience with modern frontend frameworks (React, Vue, or Angular).
Proficiency in JavaScript/Typescript, HTML, and CSS.
Ability to translate user workflows into intuitive UX/UI designs.
Experience with prototyping and design tools (Figma, Sketch, Adobe XD, etc.).
Hands-on experience building real-time dashboards or data visualization UIs.
Strong collaboration and communication skills across technical and non-technical teams.
Comfortable owning the end-to-end lifecycle: research → design → implementation → iteration.
Comfortable embedding with end-users and adapting to a fast-paced engineering environment.
Desired Skills:
Experience with real-time or streaming data visualization.
Familiarity with UX research methods (interviews, shadowing, usability testing).
Knowledge of accessibility standards (WCAG, ARIA) and inclusive design.
Experience with alerting/monitoring tools and designing for critical operations.
Background in human factors engineering or industrial HMI (Human-Machine Interfaces).
Experience with visualization libraries (D3.js, Plotly, Recharts).
Familiarity with backend APIs, WebSockets, or GraphQL for data integration.
Exposure to operator-driven domains (aerospace, defense, energy, industrial control).
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Product (Frontend UX/UI) Software Engineer, you’ll bridge the gap between our fusion machine operators and our software stack. You’ll own both the design and the implementation of the interfaces our fusion machine operators use every day. You’ll work directly with operators in the control room, learning their workflows, tools, and pain points to design and implement curated interfaces that improve speed, clarity, and confidence. You’ll own the frontend of critical operator tools, building real-time data visualizations, actionable alerts, and streamlined interactions that let our teams operate the fusion machine with efficiency, safety, and confidence. This is a hands-on role where you’ll design, prototype, and build production-ready software, collaborating across software, hardware, and operator teams. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.\n\nYou Will:\n\n - Blend frontend engineering and UX/UI design skills to create operator-facing applications.\n\n - Embed yourself with machine operators to deeply understand workflows, tools, and challenges.\n\n - Work with other software vendors to integrate other applications into our product.\n\n - Translate workflows into prototypes, mockups, and then production-ready code.\n\n - Consolidate and unify fragmented applications into coherent user experiences.\n\n - Build real-time dashboards, alerts, and visualizations that improve situational awareness.\n\n - Collaborate with backend/data engineers to integrate complex real-time data streams.\n\n - Establish and maintain design patterns, component libraries, and UX standards.\n\n - Advocate for operator needs within the broader product and software teams.\n\nRequired Skills:\n\n - Strong experience with modern frontend frameworks (React, Vue, or Angular).\n\n - Proficiency in JavaScript/Typescript, HTML, and CSS.\n\n - Ability to translate user workflows into intuitive UX/UI designs.\n\n - Experience with prototyping and design tools (Figma, Sketch, Adobe XD, etc.).\n\n - Hands-on experience building real-time dashboards or data visualization UIs.\n\n - Strong collaboration and communication skills across technical and non-technical teams.\n\n - Comfortable owning the end-to-end lifecycle: research → design → implementation → iteration.\n\n - Comfortable embedding with end-users and adapting to a fast-paced engineering environment.\n\nDesired Skills:\n\n - Experience with real-time or streaming data visualization.\n\n - Familiarity with UX research methods (interviews, shadowing, usability testing).\n\n - Knowledge of accessibility standards (WCAG, ARIA) and inclusive design.\n\n - Experience with alerting/monitoring tools and designing for critical operations.\n\n - Background in human factors engineering or industrial HMI (Human-Machine Interfaces).\n\n - Experience with visualization libraries (D3.js, Plotly, Recharts).\n\n - Familiarity with backend APIs, WebSockets, or GraphQL for data integration.\n\n - Exposure to operator-driven domains (aerospace, defense, energy, industrial control).\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"11ab5c7a-535b-4cc9-a397-1db111f20798","title":"Senior Software Engineer, Network & Performance","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-02-25T20:07:55.632+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/11ab5c7a-535b-4cc9-a397-1db111f20798","applyUrl":"https://jobs.ashbyhq.com/helion/11ab5c7a-535b-4cc9-a397-1db111f20798/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Software Engineer focused on Network and Performance, you will own the architecture and reliability of the communication networks that connect our fusion machine and plant-scale systems. You’ll design and validate networking solutions that support deterministic control, precise time synchronization, high throughput, and fault-tolerant operation across thousands of devices. You’ll evaluate and deploy networking technologies that enable safe, reliable, and high-performance machine operation. You’ll work closely with security engineers to harden the network against threats, partner with electrical systems/integration engineers to define and manage system interfaces, and collaborate with hardware and software teams to integrate networking requirements into the broader system architecture. This is a hands-on role where you’ll configure switches, prototype new approaches, and rigorously test performance and reliability, ensuring our plant-wide networking is robust enough to scale with the future of fusion. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.
You Will:
Own the design, configuration, and operation of machine- and plant-wide networking infrastructure
Define and maintain networking requirements for bandwidth, latency, time synchronization, redundancy, and reliability
Design, test, and validate networking technologies, including Ethernet, Industrial Ethernet, EtherCAT, PTP/NTP, Time-Triggered Ethernet, and emerging precision timing protocols
Configure, prototype, and test industrial switches, routers, and network devices to meet performance and reliability goals
Work with Security Engineers to harden networks, including segmentation, authentication, and intrusion detection
Collaborate with IS&T to define plant-to-enterprise interfaces and ensure integration with corporate systems
Work with Electrical Systems/Integration Engineers on system level requirements, machine integration, and harnessing ICDs
Partner with hardware/software teams to ensure networking requirements are aligned with machine-level controls and performance needs
Monitor, diagnose, and improve network performance, proactively identifying bottlenecks or failure points
Required Skills:
Strong background in Linux-based systems administration and networking
Proficiency with Git and modern software development workflows
Deep understanding of TCP/IP networking, VLANs, and switch configuration
Hands-on experience with time synchronization protocols (PTP, NTP) and precision timing architectures
Knowledge of fault-tolerance and redundancy design in industrial or mission-critical networks
Experience with Industrial Ethernet protocols (EtherCAT strongly preferred)
Familiarity with configuring and tuning managed switches, routers, and industrial networking devices
Ability to debug, test, and validate network performance under load and in real-time conditions
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Software Engineer focused on Network and Performance, you will own the architecture and reliability of the communication networks that connect our fusion machine and plant-scale systems. You’ll design and validate networking solutions that support deterministic control, precise time synchronization, high throughput, and fault-tolerant operation across thousands of devices. You’ll evaluate and deploy networking technologies that enable safe, reliable, and high-performance machine operation. You’ll work closely with security engineers to harden the network against threats, partner with electrical systems/integration engineers to define and manage system interfaces, and collaborate with hardware and software teams to integrate networking requirements into the broader system architecture. This is a hands-on role where you’ll configure switches, prototype new approaches, and rigorously test performance and reliability, ensuring our plant-wide networking is robust enough to scale with the future of fusion. This is an onsite role that reports directly to the Lead Electrical Engineer at our Everett, WA office.\n\nYou Will:\n\n - Own the design, configuration, and operation of machine- and plant-wide networking infrastructure\n\n - Define and maintain networking requirements for bandwidth, latency, time synchronization, redundancy, and reliability\n\n - Design, test, and validate networking technologies, including Ethernet, Industrial Ethernet, EtherCAT, PTP/NTP, Time-Triggered Ethernet, and emerging precision timing protocols\n\n - Configure, prototype, and test industrial switches, routers, and network devices to meet performance and reliability goals\n\n - Work with Security Engineers to harden networks, including segmentation, authentication, and intrusion detection\n\n - Collaborate with IS&T to define plant-to-enterprise interfaces and ensure integration with corporate systems\n\n - Work with Electrical Systems/Integration Engineers on system level requirements, machine integration, and harnessing ICDs\n\n - Partner with hardware/software teams to ensure networking requirements are aligned with machine-level controls and performance needs\n\n - Monitor, diagnose, and improve network performance, proactively identifying bottlenecks or failure points\n\nRequired Skills:\n\n - Strong background in Linux-based systems administration and networking\n\n - Proficiency with Git and modern software development workflows\n\n - Deep understanding of TCP/IP networking, VLANs, and switch configuration\n\n - Hands-on experience with time synchronization protocols (PTP, NTP) and precision timing architectures\n\n - Knowledge of fault-tolerance and redundancy design in industrial or mission-critical networks\n\n - Experience with Industrial Ethernet protocols (EtherCAT strongly preferred)\n\n - Familiarity with configuring and tuning managed switches, routers, and industrial networking devices\n\n - Ability to debug, test, and validate network performance under load and in real-time conditions\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Engineering Technician to develop Helion's fusion generators and subscale plasma devices. You will help develop hardware, lead full-scale builds, and coach fellow technicians on the Production Team. You will report directly to our Build Manager at our Everett, WA campus.
You Will:
· Collaborate with engineers, technicians, and managers to design, assemble, test, and troubleshoot electromechanical systems
· Design and fabricate fixtures and jigs to aid in the assembly of electromechanical components
· Own process development and work instruction creation for prototype assembly and test
· Design, build, and perform mechanical and electrical tests on parts and assemblies.
· Ensure safety and quality standards are met throughout the production process
· Be able to squat, reach, climb, and stand for extended periods, and lift up to 50lbs
Required Skills:
· 5+ years of experience as a Mechanical or Electrical Technician
· Experience using light fabrication tools (power tools, mills, lathes, etc.)
· Experience with CAD modeling
· Read and understand technical drawings, manuals, and reports
· Efficient use of Microsoft Excel, PowerPoint, Word, and Outlook for clear documentation and communication.
Bonus Skills:
· Experience designing parts/fixtures in CAD software
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Engineering Technician to develop Helion's fusion generators and subscale plasma devices. You will help develop hardware, lead full-scale builds, and coach fellow technicians on the Production Team. You will report directly to our Build Manager at our Everett, WA campus.\n\nYou Will:\n\n· Collaborate with engineers, technicians, and managers to design, assemble, test, and troubleshoot electromechanical systems\n\n· Design and fabricate fixtures and jigs to aid in the assembly of electromechanical components\n\n· Own process development and work instruction creation for prototype assembly and test\n\n· Design, build, and perform mechanical and electrical tests on parts and assemblies.\n\n· Ensure safety and quality standards are met throughout the production process\n\n· Be able to squat, reach, climb, and stand for extended periods, and lift up to 50lbs\n\nRequired Skills:\n\n· 5+ years of experience as a Mechanical or Electrical Technician\n\n· Experience using light fabrication tools (power tools, mills, lathes, etc.)\n\n· Experience with CAD modeling\n\n· Read and understand technical drawings, manuals, and reports\n\n· Efficient use of Microsoft Excel, PowerPoint, Word, and Outlook for clear documentation and communication.\n\nBonus Skills:\n\n· Experience designing parts/fixtures in CAD software\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"22d1b06a-57c3-40cd-a14b-ab1c261dd42c","title":"Principal Electrical Engineer - RF ","department":"Science","team":"Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-02T18:36:34.957+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/22d1b06a-57c3-40cd-a14b-ab1c261dd42c","applyUrl":"https://jobs.ashbyhq.com/helion/22d1b06a-57c3-40cd-a14b-ab1c261dd42c/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Experimental 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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 Experimental 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"00cb79f1-aa15-43f1-b531-197be4b209f2","title":"Principal Materials Design Scientist","department":"Material Science","team":"Material Science","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-06T19:56:28.762+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/00cb79f1-aa15-43f1-b531-197be4b209f2","applyUrl":"https://jobs.ashbyhq.com/helion/00cb79f1-aa15-43f1-b531-197be4b209f2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 thermomechanical and thermohydraulic models to drive the development of next generation materials and engineered components. In this role, you will apply advanced simulation, physics-based modeling, and materials science principles to design, evaluate, and optimize new materials for demanding thermal and mechanical environments. You will report to the Director of Materials, and this is an onsite role located at our Everett, WA office.
You Will:
Develop and execute thermomechanical and thermohydraulic models to predict performance, deformation, heat flux, stress, fluid–structure interactions and materials degradation and lifetime.
Evaluate materials' thermophysical properties and integrate them into modeling workflows.
Work closely with testing engineers to validate models against thermomechanical and thermohydraulic experiments. Interpret test data to refine models, reduce uncertainties, and drive design decisions.
Design new materials, coatings, or composites optimized for high thermal loads, thermal cycling, or combined thermomechanical stresses. Recommend material compositions and microstructural features to meet performance targets.
Partner with design engineering teams to integrate materials models into system level simulations.
Communicate complex modeling results to nonexperts through clear visualizations, reports, and presentations.
Required Skills:
Master's or PhD in Materials Science, Mechanical Engineering, Nuclear Engineering, Chemical Engineering, Aerospace Engineering, or related fields.
Strong background in heat transfer, fluid dynamics, thermodynamics, and solid mechanics.
8+ years of experience in thermomechanical and/or thermohydraulic simulation tools (COMSOL, ANSYS, Abaqus, OpenFOAM, etc.)
8+ years of experience with multiphysics modeling, including coupled heat transfer/fluid flow/stress problems.
Proficiency in scripting languages (Python, MATLAB) for model automation, data processing, or custom solvers.
Strong analytical, problem solving, and communication skills.
Experience with CAD preferred.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 thermomechanical and thermohydraulic models to drive the development of next generation materials and engineered components. In this role, you will apply advanced simulation, physics-based modeling, and materials science principles to design, evaluate, and optimize new materials for demanding thermal and mechanical environments. You will report to the Director of Materials, and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Develop and execute thermomechanical and thermohydraulic models to predict performance, deformation, heat flux, stress, fluid–structure interactions and materials degradation and lifetime.\n\n - Evaluate materials' thermophysical properties and integrate them into modeling workflows.\n\n - Work closely with testing engineers to validate models against thermomechanical and thermohydraulic experiments. Interpret test data to refine models, reduce uncertainties, and drive design decisions.\n\n - Design new materials, coatings, or composites optimized for high thermal loads, thermal cycling, or combined thermomechanical stresses. Recommend material compositions and microstructural features to meet performance targets.\n\n - Partner with design engineering teams to integrate materials models into system level simulations.\n\n - Communicate complex modeling results to nonexperts through clear visualizations, reports, and presentations.\n\nRequired Skills:\n\n - Master's or PhD in Materials Science, Mechanical Engineering, Nuclear Engineering, Chemical Engineering, Aerospace Engineering, or related fields.\n\n - Strong background in heat transfer, fluid dynamics, thermodynamics, and solid mechanics.\n\n - 8+ years of experience in thermomechanical and/or thermohydraulic simulation tools (COMSOL, ANSYS, Abaqus, OpenFOAM, etc.)\n\n - 8+ years of experience with multiphysics modeling, including coupled heat transfer/fluid flow/stress problems.\n\n - Proficiency in scripting languages (Python, MATLAB) for model automation, data processing, or custom solvers.\n\n - Strong analytical, problem solving, and communication skills.\n\n - Experience with CAD preferred.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"6b2ee1c2-509e-4433-9a60-3f79d7dfcd42","title":"Software Engineer, DevOps/Infra","department":"Software Engineering","team":"Software Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-19T00:09:11.671+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/6b2ee1c2-509e-4433-9a60-3f79d7dfcd42","applyUrl":"https://jobs.ashbyhq.com/helion/6b2ee1c2-509e-4433-9a60-3f79d7dfcd42/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Software Engineer focused on DevOps and Infrastructure, you will own the systems and pipelines that enable our software and firmware teams to build, test, and deploy quickly and safely. You’ll stand up and maintain cloud environments, CI/CD pipelines, and build infrastructure that supports everything from operator-facing applications to firmware running on our fusion machines. You’ll help establish best practices in Git workflows, release mechanisms, containerization, and infrastructure automation. By working closely with software engineers, you’ll ensure development environments and production services are reliable, scalable, and aligned with corporate IS&T security requirements. You’ll also own critical infrastructure tools like Portainer and alerting systems, helping the team catch and resolve issues before they become blockers. This role is ideal for someone who thrives at the intersection of infrastructure, tooling, and developer experience—someone who can keep our systems reliable while accelerating the pace of software delivery.
You Will:
Stand up, configure, and maintain cloud environments (Azure, AWS, GCP, or similar).
Design and maintain CI/CD pipelines to support software and firmware development.
Manage build systems, artifact repositories, and release mechanisms for production code.
Set up and maintain monitoring and alerting for compute infrastructure and critical services.
Establish best practices for Git workflows, branching, and source control hygiene.
Own containerized infrastructure management (Docker, Kubernetes, Portainer).
Collaborate with software engineering teams to maintain and scale servers used for projects like Polaris and other machine-facing systems.
Partner with corporate IS&T and security engineers to align infrastructure with security and compliance needs.
Proactively identify and remove friction in the development-to-deployment pipeline to accelerate delivery.
Experience with monorepo build systems (Bazel, Pants)
Required Skills:
Strong experience with Linux system administration and shell scripting.
Proficiency in containerization (Docker) and orchestration (Kubernetes).
Hands-on experience with CI/CD systems (e.g., GitLab CI, Jenkins, GitHub Actions, CircleCI).
Strong programming/scripting ability in Python (Bash also a plus).
Familiarity with cloud platforms (Azure, AWS, GCP, or DigitalOcean).
Solid understanding of Git and source control workflows.
Experience with infrastructure-as-code tools (Ansible, Terraform, or similar).
Strong collaboration and problem-solving skills across software and infrastructure teams.
Desired Skills:
Experience with monitoring and alerting systems (Prometheus, Grafana, ELK, Datadog, Nominal, or similar).
Familiarity with secrets management systems (HashiCorp Vault, AWS KMS, etc.).
Experience with paging/on-call systems (PagerDuty, OpsGenie).
Background in software/firmware deployment pipelines and artifact management.
Knowledge of networking fundamentals (VLANs, load balancers, reverse proxies).
Experience with scaling CI/CD for hardware-software co-development environments.
Exposure to compliance/security practices for production infrastructure.
Hybrid cloud/on-prem experience
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Software Engineer focused on DevOps and Infrastructure, you will own the systems and pipelines that enable our software and firmware teams to build, test, and deploy quickly and safely. You’ll stand up and maintain cloud environments, CI/CD pipelines, and build infrastructure that supports everything from operator-facing applications to firmware running on our fusion machines. You’ll help establish best practices in Git workflows, release mechanisms, containerization, and infrastructure automation. By working closely with software engineers, you’ll ensure development environments and production services are reliable, scalable, and aligned with corporate IS&T security requirements. You’ll also own critical infrastructure tools like Portainer and alerting systems, helping the team catch and resolve issues before they become blockers. This role is ideal for someone who thrives at the intersection of infrastructure, tooling, and developer experience—someone who can keep our systems reliable while accelerating the pace of software delivery.\n\nYou Will:\n\n - Stand up, configure, and maintain cloud environments (Azure, AWS, GCP, or similar).\n\n - Design and maintain CI/CD pipelines to support software and firmware development.\n\n - Manage build systems, artifact repositories, and release mechanisms for production code.\n\n - Set up and maintain monitoring and alerting for compute infrastructure and critical services.\n\n - Establish best practices for Git workflows, branching, and source control hygiene.\n\n - Own containerized infrastructure management (Docker, Kubernetes, Portainer).\n\n - Collaborate with software engineering teams to maintain and scale servers used for projects like Polaris and other machine-facing systems.\n\n - Partner with corporate IS&T and security engineers to align infrastructure with security and compliance needs.\n\n - Proactively identify and remove friction in the development-to-deployment pipeline to accelerate delivery.\n\n - Experience with monorepo build systems (Bazel, Pants)\n\nRequired Skills:\n\n - Strong experience with Linux system administration and shell scripting.\n\n - Proficiency in containerization (Docker) and orchestration (Kubernetes).\n\n - Hands-on experience with CI/CD systems (e.g., GitLab CI, Jenkins, GitHub Actions, CircleCI).\n\n - Strong programming/scripting ability in Python (Bash also a plus).\n\n - Familiarity with cloud platforms (Azure, AWS, GCP, or DigitalOcean).\n\n - Solid understanding of Git and source control workflows.\n\n - Experience with infrastructure-as-code tools (Ansible, Terraform, or similar).\n\n - Strong collaboration and problem-solving skills across software and infrastructure teams.\n\nDesired Skills:\n\n - Experience with monitoring and alerting systems (Prometheus, Grafana, ELK, Datadog, Nominal, or similar).\n\n - Familiarity with secrets management systems (HashiCorp Vault, AWS KMS, etc.).\n\n - Experience with paging/on-call systems (PagerDuty, OpsGenie).\n\n - Background in software/firmware deployment pipelines and artifact management.\n\n - Knowledge of networking fundamentals (VLANs, load balancers, reverse proxies).\n\n - Experience with scaling CI/CD for hardware-software co-development environments.\n\n - Exposure to compliance/security practices for production infrastructure.\n\n - Hybrid cloud/on-prem experience\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"ded88283-9a15-484e-99cd-622ae0d8ef8f","title":"Shipping Receiving Clerk","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-09T18:38:33.719+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/ded88283-9a15-484e-99cd-622ae0d8ef8f","applyUrl":"https://jobs.ashbyhq.com/helion/ded88283-9a15-484e-99cd-622ae0d8ef8f/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 contract Shipping and Receiving Clerk to manage incoming and outgoing shipments to support our production, and R&D. You will report to the Inventory Control Manager at our Everett, WA location.
You Will:
Promptly unload trucks and deliveries during business hours
Collaborate with Materials Management, Sourcing and Procurement, Production, Engineering, and Finance, and other related departments to resolve problems related to receipt and distribution of material
Package materials for shipment and transport
Manage transactions in Helion’s ERP software
Utilize 3PL software to coordinate shipping
Maintain clean, organized storage locations across the shipping, receiving, and storage areas
Operate material handling equipment including, but not limited to: forklifts, pallet jacks, and hand carts
Support first shift operating from 7:30 am – 4:00 pm
Required Skills:
2+ years of related experience
Valid driver's license
Ability to lift/carry 20 lbs
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 contract Shipping and Receiving Clerk to manage incoming and outgoing shipments to support our production, and R&D. You will report to the Inventory Control Manager at our Everett, WA location.\n\nYou Will:\n\n - Promptly unload trucks and deliveries during business hours\n\n - Collaborate with Materials Management, Sourcing and Procurement, Production, Engineering, and Finance, and other related departments to resolve problems related to receipt and distribution of material\n\n - Package materials for shipment and transport\n\n - Manage transactions in Helion’s ERP software\n\n - Utilize 3PL software to coordinate shipping\n\n - Maintain clean, organized storage locations across the shipping, receiving, and storage areas\n\n - Operate material handling equipment including, but not limited to: forklifts, pallet jacks, and hand carts\n\n - Support first shift operating from 7:30 am – 4:00 pm\n\nRequired Skills:\n\n - 2+ years of related experience\n\n - Valid driver's license\n\n - Ability to lift/carry 20 lbs\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"51cd97ea-7a13-41c9-bd0a-0ce893f0b99f","title":"Manager, Controls Development Engineering","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-10T22:38:16.327+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/51cd97ea-7a13-41c9-bd0a-0ce893f0b99f","applyUrl":"https://jobs.ashbyhq.com/helion/51cd97ea-7a13-41c9-bd0a-0ce893f0b99f/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 and build a team of Controls Development and Test Automation Engineers to develop and implement automation, controls and testing standards for Helion’s capacitor bank production. In this role, you’ll guide the transition from rapid prototyping to high-volume manufacturing, helping advance Helion’s mission to deliver clean, sustainable electricity to the world. This is an onsite role that reports directly to the Factory Development Manager at our Everett, WA office.
You Will:
Lead and scale a high-performance team of Automation, Controls and Test Engineers to design, scale, and launch first-of-a-kind products into production
Develop and standardize manufacturing automation architectures for deployment across multiple production lines
Collaborate with equipment suppliers on system design, functionality, design reviews, acceptance testing, and equipment buyoff
Implement compliant safety and control systems (ANSI/ISO/OSHA) and produce electrical and pneumatic schematics for automated manufacturing equipment
Optimize and maintain production performance by enabling equipment data reporting (OEE and machine-level metrics), troubleshooting downtime, identifying root causes, and implementing long-term solutions
Required Skills:
7+ years of experience in manufacturing controls within a high-volume production environment
2+ years of leadership experience, managing, scaling, and developing engineering teams
Demonstrated success in developing engineers and leaders, with an emphasis on career growth and team capability building
Proven ability to lead complex engineering projects, own schedules and deliverables, and collaborate cross-functional
Extensive experience in machine safety design for automated manufacturing equipment
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 and build a team of Controls Development and Test Automation Engineers to develop and implement automation, controls and testing standards for Helion’s capacitor bank production. In this role, you’ll guide the transition from rapid prototyping to high-volume manufacturing, helping advance Helion’s mission to deliver clean, sustainable electricity to the world. This is an onsite role that reports directly to the Factory Development Manager at our Everett, WA office.\n\nYou Will:\n\n - Lead and scale a high-performance team of Automation, Controls and Test Engineers to design, scale, and launch first-of-a-kind products into production\n\n - Develop and standardize manufacturing automation architectures for deployment across multiple production lines\n\n - Collaborate with equipment suppliers on system design, functionality, design reviews, acceptance testing, and equipment buyoff\n\n - Implement compliant safety and control systems (ANSI/ISO/OSHA) and produce electrical and pneumatic schematics for automated manufacturing equipment\n\n - Optimize and maintain production performance by enabling equipment data reporting (OEE and machine-level metrics), troubleshooting downtime, identifying root causes, and implementing long-term solutions\n\nRequired Skills:\n\n - 7+ years of experience in manufacturing controls within a high-volume production environment\n\n - 2+ years of leadership experience, managing, scaling, and developing engineering teams\n\n - Demonstrated success in developing engineers and leaders, with an emphasis on career growth and team capability building\n\n - Proven ability to lead complex engineering projects, own schedules and deliverables, and collaborate cross-functional\n\n - Extensive experience in machine safety design for automated manufacturing equipment\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"06793e4f-4b9d-49ad-abb6-a3036b8e4e65","title":"Director / Vice President of Strategic Finance and Investor Relations","department":"Finance","team":"Finance","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-12T22:29:47.874+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/06793e4f-4b9d-49ad-abb6-a3036b8e4e65","applyUrl":"https://jobs.ashbyhq.com/helion/06793e4f-4b9d-49ad-abb6-a3036b8e4e65/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 shaping Helion’s long-term financial strategy, managing investor relations, and driving capital planning. You will collaborate closely with executives to guide financial performance, optimize capital structure, and communicate goals and achievements to investors. You will report to the CFO and this is an onsite role located at our Everett, WA office.
You Will:
Lead long-term financial planning and strategy
Develop and execute the company’s long-term financial strategy, including capital planning and support for strategic initiatives
Optimize capital structure through analysis of the balance sheet, cost of capital, and debt vs equity tradeoffs to drive financial decision-making and long-term growth
Evaluate strategic initiatives, investments, and risks to identify growth opportunities and long-term value creation
Manage investor relations, fundraising, and capital markets transactions
Build and maintain relationships with investors and analysts, ensuring clear communication of Helion’s financial health, strategy, and outlook
Serve as the primary contact for investor communications and lead the development of investor-facing materials
Collaborate with executives to shape financial strategy and provide guidance on capital structure, M&A activity, and messaging to investors
Required Skills:
Bachelor’s degree in Finance, Business, or a related field, or equivalent experience
10+ years of experience in a finance role
5+ years of experience in investment banking and/or consulting
2+ years of in-house experience at a tech company, ideally a high-growth startup
Experience collaborating with and presenting to executives and investors
Experience with in-house fundraising and capital markets analysis and transactions
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 critical role in shaping Helion’s long-term financial strategy, managing investor relations, and driving capital planning. You will collaborate closely with executives to guide financial performance, optimize capital structure, and communicate goals and achievements to investors. You will report to the CFO and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Lead long-term financial planning and strategy\n\n - Develop and execute the company’s long-term financial strategy, including capital planning and support for strategic initiatives\n\n - Optimize capital structure through analysis of the balance sheet, cost of capital, and debt vs equity tradeoffs to drive financial decision-making and long-term growth\n\n - Evaluate strategic initiatives, investments, and risks to identify growth opportunities and long-term value creation\n\n - Manage investor relations, fundraising, and capital markets transactions\n\n - Build and maintain relationships with investors and analysts, ensuring clear communication of Helion’s financial health, strategy, and outlook\n\n - Serve as the primary contact for investor communications and lead the development of investor-facing materials\n\n - Collaborate with executives to shape financial strategy and provide guidance on capital structure, M&A activity, and messaging to investors\n\nRequired Skills:\n\n - Bachelor’s degree in Finance, Business, or a related field, or equivalent experience\n\n - 10+ years of experience in a finance role\n\n - 5+ years of experience in investment banking and/or consulting\n\n - 2+ years of in-house experience at a tech company, ideally a high-growth startup\n\n - Experience collaborating with and presenting to executives and investors\n\n - Experience with in-house fundraising and capital markets analysis and transactions\n\n#LI-Onsite\n\n#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"520b0353-7275-447b-ad13-4b283e1b102e","title":"Senior Procurement Specialist","department":"Supply Chain","team":"Supply Chain","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-02T21:20:17.125+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/520b0353-7275-447b-ad13-4b283e1b102e","applyUrl":"https://jobs.ashbyhq.com/helion/520b0353-7275-447b-ad13-4b283e1b102e/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 proactive and technically minded Procurement Specialist to join our growing team. You'll collaborate closely with cross-functional teams, primarily our mechanical engineering and machining teams to source and procure custom mechanical parts and raw materials. This position offers the opportunity to lead key initiatives that strengthen our supply chain and vendor partnerships. This is an onsite role that reports directly to the Manager of Sourcing and Procurement at our Everett, WA office.
You Will
Source raw material (aluminum, stainless steel, copper, G10, HDPE, etc) in various form factors (bar, plate, sheet, tubing, etc), CNC cutting tools (mills, drills, reamers, inserts, etc), and workholding (vises, chucks, fixtures, clamps, etc) as needed to support operations.
Support in-source/out-source decision making to procure custom mechanical parts in collaboration with engineering and machining teams. Drive BOM cost reductions and secure production capacity to meet production and prototype NPI schedule requirements.
Identify new vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain.
Lead bidding efforts. Negotiate contract terms and manage existing contracts with vendors including manufacturing service agreements, stocking programs, non-disclosure agreements, etc.
Lead initiatives and projects cross-functionally.
Create purchase orders, resolve invoice and receiving snags, and receive/ship orders in ERP/MES.
Required Skills:
Bachelors degree or 6+ years of experience in supply chain function
3+ years of experience working in procurement, operations, or buying function supporting manufacturing
Demonstrated ability to source complex mechanical components and manage multi-tier supply chains
Understanding of engineered part drawings and methods of manufacturing, especially subtractive machining (milling, turning, sheet metal cutting/forming)
Experience in prototype development, new product introduction buying, and high-volume manufacturing
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 proactive and technically minded Procurement Specialist to join our growing team. You'll collaborate closely with cross-functional teams, primarily our mechanical engineering and machining teams to source and procure custom mechanical parts and raw materials. This position offers the opportunity to lead key initiatives that strengthen our supply chain and vendor partnerships. This is an onsite role that reports directly to the Manager of Sourcing and Procurement at our Everett, WA office.\n\nYou Will\n\n - Source raw material (aluminum, stainless steel, copper, G10, HDPE, etc) in various form factors (bar, plate, sheet, tubing, etc), CNC cutting tools (mills, drills, reamers, inserts, etc), and workholding (vises, chucks, fixtures, clamps, etc) as needed to support operations.\n\n - Support in-source/out-source decision making to procure custom mechanical parts in collaboration with engineering and machining teams. Drive BOM cost reductions and secure production capacity to meet production and prototype NPI schedule requirements.\n\n - Identify new vendors and maintain strong relationships with existing vendors to develop a diverse and robust supply chain.\n\n - Lead bidding efforts. Negotiate contract terms and manage existing contracts with vendors including manufacturing service agreements, stocking programs, non-disclosure agreements, etc.\n\n - Lead initiatives and projects cross-functionally.\n\n - Create purchase orders, resolve invoice and receiving snags, and receive/ship orders in ERP/MES.\n\nRequired Skills:\n\n - Bachelors degree or 6+ years of experience in supply chain function\n\n - 3+ years of experience working in procurement, operations, or buying function supporting manufacturing\n\n - Demonstrated ability to source complex mechanical components and manage multi-tier supply chains\n\n - Understanding of engineered part drawings and methods of manufacturing, especially subtractive machining (milling, turning, sheet metal cutting/forming)\n\n - Experience in prototype development, new product introduction buying, and high-volume manufacturing\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"27d4dee4-2403-4a9d-a24c-826cf16ed0dd","title":"Manufacturing Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-23T19:12:35.211+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/27d4dee4-2403-4a9d-a24c-826cf16ed0dd","applyUrl":"https://jobs.ashbyhq.com/helion/27d4dee4-2403-4a9d-a24c-826cf16ed0dd/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Factory Development Manager 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 grow production line and build the foundation for high-volume production
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 and high-volume 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 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 Factory Development Manager 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 grow production line and build the foundation for high-volume production\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 - 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 and high-volume 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"649ec9e4-b44f-4335-b0a0-f42297d92b10","title":"Industrial Engineer","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-23T19:11:37.113+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/649ec9e4-b44f-4335-b0a0-f42297d92b10","applyUrl":"https://jobs.ashbyhq.com/helion/649ec9e4-b44f-4335-b0a0-f42297d92b10/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 position will support the design, build, and optimization of Helion’s high volume Capacitor Bank manufacturing facility. The role will work cross functionally with Manufacturing, Design, Controls, Quality and Supply Chain to remove waste, optimize layout, and support a rapid production ramp. This role will report to our Factory Development Manager at our Everett, WA office.
You Will:
Lead the development of factory layouts for new manufacturing lines, major expansions, and system reconfigurations to maximize efficiency and scalability
Design and optimize production lines, workstations, and material flow strategies to support high-volume, high-performance manufacturing
Own and maintain the factory commissioning schedule, ensuring alignment with production milestones
Collaborate cross-functionally with manufacturing, production, design, facilities, and materials teams to bring factory designs and expansion projects from concept to reality
Analyze production data to identify bottlenecks, drive continuous improvement, and enhance throughput and operational performance
Optimize end-to-end material flow using Just-In-Time production principles to improve manufacturing efficiency, reduce waste, and maximize factory floor space
Required Skills:
Bachelor’s degree in Industrial Engineering, Manufacturing Engineering, Mechanical Engineering, or related field
2+ years of experience in high-volume manufacturing (automotive, aerospace, electronics, or similar)
Experience in 2D/3D layout design, factory and production line layouts
Proficiency with data analysis tools (Excel, SQL, Python, or similar)
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 position will support the design, build, and optimization of Helion’s high volume Capacitor Bank manufacturing facility. The role will work cross functionally with Manufacturing, Design, Controls, Quality and Supply Chain to remove waste, optimize layout, and support a rapid production ramp. This role will report to our Factory Development Manager at our Everett, WA office.\n\nYou Will:\n\n - Lead the development of factory layouts for new manufacturing lines, major expansions, and system reconfigurations to maximize efficiency and scalability\n\n - Design and optimize production lines, workstations, and material flow strategies to support high-volume, high-performance manufacturing\n\n - Own and maintain the factory commissioning schedule, ensuring alignment with production milestones\n\n - Collaborate cross-functionally with manufacturing, production, design, facilities, and materials teams to bring factory designs and expansion projects from concept to reality\n\n - Analyze production data to identify bottlenecks, drive continuous improvement, and enhance throughput and operational performance\n\n - Optimize end-to-end material flow using Just-In-Time production principles to improve manufacturing efficiency, reduce waste, and maximize factory floor space\n\nRequired Skills:\n\n - Bachelor’s degree in Industrial Engineering, Manufacturing Engineering, Mechanical Engineering, or related field\n\n - 2+ years of experience in high-volume manufacturing (automotive, aerospace, electronics, or similar)\n\n - Experience in 2D/3D layout design, factory and production line layouts\n\n - Proficiency with data analysis tools (Excel, SQL, Python, or similar)\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"R&D Engineering Manager - Fusion Machine Operation","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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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, Supply Chain and Manufacturing","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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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:
You will be a critical member of the Finance team, providing analytical and reporting support for the Financial Planning & Analysis team (FP&A). You'll work with the Finance and Accounting teams and other key business stakeholders across Demand & Supply Planning, Procurement, and Inventory on day-to-day financial reporting, forecasting, and delivering of accurate analysis to support decision-making for the Integrated Supply Chain (ISC) organization. This is an onsite role that reports directly to the Finance Director of FP&A at our Everett, WA office.
You Will:
Develop and enhance Supply Chain reporting tools, dashboards, and financial analyses to deliver actionable insights and communicate the financial forecast trends.
Maintain and update budgets, business inputs, and procurement forecasting models.
Conduct targeted financial and operational analyses to guide cost management and project decision making.
Interact with key stakeholders across Procurement and Manufacturing teams to understand business drivers, measure key output KPI metrics, and improve/implement financial reporting for a dynamic business.
Use Excel, ERP systems (NetSuite or Fusion preferred), and BI and AI Finance tools (e.g., Power BI, Tableau, ChatGPT, CoPilot, Cohere, etc.) to improve reporting and automate workflows.
Required Skills:
4–6 years of experience in FP&A, financial analysis, or accounting within the technology, robotics, energy, or manufacturing industries.
Experience with financial statements, budgeting, cost tracking, rebates, unit costing, and economic ordering models, with the ability to bridge PQV and PPV production variances and forecasting inventory.
Advanced Excel skills with a strong ability to leverage large data sets; experience with SQL or other database query tools would be a plus.
Proficiency with BI tools (e.g. Power BI, Tableau) and practical application of AI tools (e.g. ChatGPT, Copilot, Cohere) for financial work.
Ability to distill financial analyses into clear insights and effectively communicate findings to both finance and non-finance stakeholders.
Bachelor’s degree in Finance, Economics, Business, or 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nYou will be a critical member of the Finance team, providing analytical and reporting support for the Financial Planning & Analysis team (FP&A). You'll work with the Finance and Accounting teams and other key business stakeholders across Demand & Supply Planning, Procurement, and Inventory on day-to-day financial reporting, forecasting, and delivering of accurate analysis to support decision-making for the Integrated Supply Chain (ISC) organization. This is an onsite role that reports directly to the Finance Director of FP&A at our Everett, WA office.\n\nYou Will:\n\n - Develop and enhance Supply Chain reporting tools, dashboards, and financial analyses to deliver actionable insights and communicate the financial forecast trends.\n\n - Maintain and update budgets, business inputs, and procurement forecasting models.\n\n - Conduct targeted financial and operational analyses to guide cost management and project decision making.\n\n - Interact with key stakeholders across Procurement and Manufacturing teams to understand business drivers, measure key output KPI metrics, and improve/implement financial reporting for a dynamic business.\n\n - Use Excel, ERP systems (NetSuite or Fusion preferred), and BI and AI Finance tools (e.g., Power BI, Tableau, ChatGPT, CoPilot, Cohere, etc.) to improve reporting and automate workflows.\n\nRequired Skills:\n\n - 4–6 years of experience in FP&A, financial analysis, or accounting within the technology, robotics, energy, or manufacturing industries.\n\n - Experience with financial statements, budgeting, cost tracking, rebates, unit costing, and economic ordering models, with the ability to bridge PQV and PPV production variances and forecasting inventory.\n\n - Advanced Excel skills with a strong ability to leverage large data sets; experience with SQL or other database query tools would be a plus.\n\n - Proficiency with BI tools (e.g. Power BI, Tableau) and practical application of AI tools (e.g. ChatGPT, Copilot, Cohere) for financial work.\n\n - Ability to distill financial analyses into clear insights and effectively communicate findings to both finance and non-finance stakeholders.\n\n - Bachelor’s degree in Finance, Economics, Business, or 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"d0fecd17-fab7-4eaf-ab34-b484b778af44","title":"Senior Financial Analyst","department":"Finance","team":"Finance","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-03-30T18:38:14.553+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/d0fecd17-fab7-4eaf-ab34-b484b778af44","applyUrl":"https://jobs.ashbyhq.com/helion/d0fecd17-fab7-4eaf-ab34-b484b778af44/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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:
You will be a critical member of the Finance team, providing analytical and reporting support for the Financial Planning & Analysis team (FP&A). You'll work with the Senior Finance Manager and other finance members on day-to-day financial reporting, forecasting, and delivering of accurate analysis that supports decision-making and implements rigor into the financial planning process across the organization. This is an onsite role that reports directly to the Finance Director of FP&A at our Everett, WA office.
You Will:
Develop and enhance reporting tools, dashboards, and financial analyses to deliver actionable insights and communicate financial forecast trends.
Maintain and update budget, business inputs, and forecasting models.
Conduct targeted financial and operational analyses to guide cost management and project decision making.
Interact with key stakeholders across Product, R&D, Science, Engineering, and G&A to understand business drivers, measure key output KPI metrics, and improve/implement financial reporting for a dynamic business.
Use Excel, ERP systems (NetSuite or Fusion preferred), and BI and AI Finance tools (e.g., Power BI, Tableau, ChatGPT, Copilot, Cohere, etc.) to improve reporting and automate workflows.
Required Skills:
4–6 years of experience in FP&A, financial analysis, or accounting support within the technology, robotics, energy, or manufacturing industries.
Experience with financial statements, budgeting, cost tracking, and bridging variance between key aspects of the financials.
Advanced Excel skills with a strong ability to leverage large data sets; experience with SQL or other database query tools would be a plus.
Proficiency with BI tools (e.g. Power BI, Tableau) and practical application of AI tools (eg. ChatGPT, CoPilot, Cohere) for use in financial planning and analytics.
Ability to distill financial analyses into clear insights and effectively communicate findings to both finance and non-finance stakeholders.
Bachelor’s degree in Finance, Economics, Business, or 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\nYou will be a critical member of the Finance team, providing analytical and reporting support for the Financial Planning & Analysis team (FP&A). You'll work with the Senior Finance Manager and other finance members on day-to-day financial reporting, forecasting, and delivering of accurate analysis that supports decision-making and implements rigor into the financial planning process across the organization. This is an onsite role that reports directly to the Finance Director of FP&A at our Everett, WA office.\n\nYou Will:\n\n - Develop and enhance reporting tools, dashboards, and financial analyses to deliver actionable insights and communicate financial forecast trends.\n\n - Maintain and update budget, business inputs, and forecasting models.\n\n - Conduct targeted financial and operational analyses to guide cost management and project decision making.\n\n - Interact with key stakeholders across Product, R&D, Science, Engineering, and G&A to understand business drivers, measure key output KPI metrics, and improve/implement financial reporting for a dynamic business.\n\n - Use Excel, ERP systems (NetSuite or Fusion preferred), and BI and AI Finance tools (e.g., Power BI, Tableau, ChatGPT, Copilot, Cohere, etc.) to improve reporting and automate workflows.\n\nRequired Skills:\n\n - 4–6 years of experience in FP&A, financial analysis, or accounting support within the technology, robotics, energy, or manufacturing industries.\n\n - Experience with financial statements, budgeting, cost tracking, and bridging variance between key aspects of the financials.\n\n - Advanced Excel skills with a strong ability to leverage large data sets; experience with SQL or other database query tools would be a plus.\n\n - Proficiency with BI tools (e.g. Power BI, Tableau) and practical application of AI tools (eg. ChatGPT, CoPilot, Cohere) for use in financial planning and analytics.\n\n - Ability to distill financial analyses into clear insights and effectively communicate findings to both finance and non-finance stakeholders.\n\n - Bachelor’s degree in Finance, Economics, Business, or 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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-04-02T20:58:01.910+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"a111e5b3-e88f-4f8b-b16c-236bab64e4cb","title":"Senior Integration Technician ","department":"Production","team":"Production","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-03T18:51:30.257+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/a111e5b3-e88f-4f8b-b16c-236bab64e4cb","applyUrl":"https://jobs.ashbyhq.com/helion/a111e5b3-e88f-4f8b-b16c-236bab64e4cb/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Integration Technician to assemble Helion's fusion generators and subscale plasma devices. You will help develop hardware, lead full-scale builds, and coach fellow technicians on the Production Team. You will report directly to one of our Production Supervisors at our Everett, WA office.
You Will:
Collaborate with a versatile team to assemble, test, and troubleshoot electromechanical components
Integrate electromechanical components and systems to the fusion generator's primary structure
Design and fabricate fixtures to aid in the assembly of electromechanical components
Coach technicians, developing their technical skills
Ensure safety and quality standards are met throughout the entire production process
Be able to squat, reach, climb, and stand for extended periods of time, and lift up to 20 lbs
Read and understand technical drawings, manuals, and reports to accomplish our goals
Required Skills:
5+ years of experience as an Electrical or Mechanical Technician focused on rapid prototyping and iteration
Experience operating heavy-duty machinery (forklift, boom/scissor lift, bridge crane, etc.) and using light fabrication tools (power tools, mills, lathes, etc.)
Experience with high-voltage systems or vacuum systems
Experience designing parts/fixtures in CAD software
#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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Integration Technician to assemble Helion's fusion generators and subscale plasma devices. You will help develop hardware, lead full-scale builds, and coach fellow technicians on the Production Team. You will report directly to one of our Production Supervisors at our Everett, WA office.\n\nYou Will:\n\n - Collaborate with a versatile team to assemble, test, and troubleshoot electromechanical components\n\n - Integrate electromechanical components and systems to the fusion generator's primary structure\n\n - Design and fabricate fixtures to aid in the assembly of electromechanical components\n\n - Coach technicians, developing their technical skills\n\n - Ensure safety and quality standards are met throughout the entire production process\n\n - Be able to squat, reach, climb, and stand for extended periods of time, and lift up to 20 lbs\n\n - Read and understand technical drawings, manuals, and reports to accomplish our goals\n\nRequired Skills:\n\n - 5+ years of experience as an Electrical or Mechanical Technician focused on rapid prototyping and iteration\n\n - Experience operating heavy-duty machinery (forklift, boom/scissor lift, bridge crane, etc.) and using light fabrication tools (power tools, mills, lathes, etc.)\n\n - Experience with high-voltage systems or vacuum systems\n\n - Experience designing parts/fixtures in CAD software\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"e8619c78-6292-4690-90f1-07aa2267f592","title":"Senior Manager Mechanical Engineering, Modules","department":" Mechanical Engineering","team":" Mechanical Engineering","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-03T19:54:46.790+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/e8619c78-6292-4690-90f1-07aa2267f592","applyUrl":"https://jobs.ashbyhq.com/helion/e8619c78-6292-4690-90f1-07aa2267f592/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 efforts 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. You will report to the Director of Mechanical Engineering and this is an onsite role located at our Everett, WA office.
You Will:
Grow and mentor a team of multidisciplinary mechanical engineers
Oversee design of machine architecture, high-performance pulsed power mechanical systems, structural designs, and thermal management systems
Drive schedule ownership and optimization across the team to accelerate milestones
Lead design, analysis, and manufacturing process improvements to increase reliability, performance, and throughput
Collaborate with Electrical, Research, Science, and Controls teams to derive requirements and meet program goals
Required Skills:
Bachelor’s degree in Engineering
10+ years of engineering experience, including 3+ years in an engineering management role
Demonstrated ability to grow engineers and impact 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, electrical, and fluids
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 lead the mechanical hardware design efforts 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. You will report to the Director of Mechanical Engineering and this is an onsite role located at our Everett, WA office.\n\nYou Will:\n\n - Grow and mentor a team of multidisciplinary mechanical engineers\n\n - Oversee design of machine architecture, high-performance pulsed power mechanical systems, structural designs, and thermal management systems\n\n - Drive schedule ownership and optimization across the team to accelerate milestones\n\n - Lead design, analysis, and manufacturing process improvements to increase reliability, performance, and throughput\n\n - Collaborate with Electrical, Research, Science, 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 engineering experience, including 3+ years in an engineering management role\n\n - Demonstrated ability to grow engineers and impact 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, electrical, and fluids\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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#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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"2026-05-08T21:54:00.395+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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Entry Level Construction Project Engineer at Helion, you will support the delivery of complex, fast-paced construction projects that enable the future of fusion energy. Working across diverse trades and project types, you will help turn ambitious designs into reality. You’ll play a hands-on role in 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:
Take ownership of supporting planning and delivery of construction activities across Helion’s campus, using creative and resourceful problem solving to drive work forward with a strong bias for action in a fast-moving environment
Manage core project processes including stakeholder requests, change orders, material orders, and documentation— driving tasks through to completion with a high level of accountability and attention to detail
Prepare quantity take-offs, support estimating, and assist with subcontractor/trade partner pricing and scope management while adapting to evolving project needs and priorities
Coordinate across internal teams, subcontractors, and suppliers to solve problems quickly, navigate ambiguity, and keep projects moving despite incomplete information
Maintain accurate and up-to-date records including meeting minutes, progress photos, logs, and closeout documentation, taking full ownership of project information and deliverables
Operate effectively in a dynamic environment with shifting priorities, while upholding Helion’s safety culture and ensuring quality and design requirements are met in the field
Required Skills:
Foundational understanding of construction processes across multiple trades and project types
Strong organizational and time management skills with attention to detail
Ability to read and interpret construction drawings and technical documents
Proficiency in Microsoft Office; familiarity with tools like Procore, Bluebeam, or MS Project is a plus
Ability to work in a fast-paced, hands-on environment and adapt to changing project needs
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Entry Level Construction Project Engineer at Helion, you will support the delivery of complex, fast-paced construction projects that enable the future of fusion energy. Working across diverse trades and project types, you will help turn ambitious designs into reality. You’ll play a hands-on role in 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 - Take ownership of supporting planning and delivery of construction activities across Helion’s campus, using creative and resourceful problem solving to drive work forward with a strong bias for action in a fast-moving environment\n\n - Manage core project processes including stakeholder requests, change orders, material orders, and documentation— driving tasks through to completion with a high level of accountability and attention to detail\n\n - Prepare quantity take-offs, support estimating, and assist with subcontractor/trade partner pricing and scope management while adapting to evolving project needs and priorities\n\n - Coordinate across internal teams, subcontractors, and suppliers to solve problems quickly, navigate ambiguity, and keep projects moving despite incomplete information\n\n - Maintain accurate and up-to-date records including meeting minutes, progress photos, logs, and closeout documentation, taking full ownership of project information and deliverables\n\n - Operate effectively in a dynamic environment with shifting priorities, while upholding Helion’s safety culture and ensuring quality and design requirements are met in the field\n\nRequired Skills:\n\n - Foundational understanding of construction processes across multiple trades and project types\n\n - Strong organizational and time management skills with attention to detail\n\n - Ability to read and interpret construction drawings and technical documents\n\n - Proficiency in Microsoft Office; familiarity with tools like Procore, Bluebeam, or MS Project is a plus\n\n - Ability to work in a fast-paced, hands-on environment and adapt to changing project needs\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"650c9d5b-c6d4-4b3c-945d-583aea38e780","title":"Senior Facilities Maintenance Mechanic","department":"Facilities","team":"Facilities","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-17T20:28:38.082+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/650c9d5b-c6d4-4b3c-945d-583aea38e780","applyUrl":"https://jobs.ashbyhq.com/helion/650c9d5b-c6d4-4b3c-945d-583aea38e780/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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'll ensure that critical mechanical, electrical, and facility systems remain operational and safe to support Helion's fusion development activities. We're looking for a Senior Facilities Maintenance Mechanic to tackle complex maintenance tasks across a multi-building campus, support team members, and improve the reliability and performance of the infrastructure that supports our mission. You will report to the Facilities Operations Manager and work onsite at our Everett, WA office.
You Will:
Perform preventive and corrective maintenance on HVAC/cooling units, compressed air, plumbing, water, electrical systems, and other facility utilities in the production environment
Install, modify, and repair air drops, lines, and facility systems to support manufacturing operations.
Troubleshoot and maintain facility-dependent equipment such as boom lifts, scissor lifts, forklifts, electric pallet jacks, and overhead cranes
Respond to building repair issues including leaking faucets, toilets, roof leaks, and equipment leaks
Maintain and repair access systems including roll-up doors, pedestrian doors, and automated gate systems
Coordinate vendor work, document maintenance activities and work orders, order parts, and support facility changes such as equipment installation, relocation, and office moves while following safety procedures
Support of fire/life safety installations and testing
Required Skills:
Ability to work second shift: Monday – Friday, 2pm -10:30pm
7+ years of experience in building, mechanical, or facility maintenance
Strong mechanical troubleshooting and repair skills, including use of diagnostic tools
Knowledge of LOTO (Lockout/Tagout) procedures and OSHA safety compliance
Skilled at reading and interpreting technical drawings, manuals, and schematics
Experienced operating motorized lift equipment (e.g., forklifts, scissor/boom lifts)
Comfortable working at heights and using fall protection equipment
Physical ability to squat, reach, climb, and lift up to 50 pounds
High school diploma or equivalent required; technical certifications in HVAC or related trades are a plus
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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'll ensure that critical mechanical, electrical, and facility systems remain operational and safe to support Helion's fusion development activities. We're looking for a Senior Facilities Maintenance Mechanic to tackle complex maintenance tasks across a multi-building campus, support team members, and improve the reliability and performance of the infrastructure that supports our mission. You will report to the Facilities Operations Manager and work onsite at our Everett, WA office.\n\nYou Will:\n\n - Perform preventive and corrective maintenance on HVAC/cooling units, compressed air, plumbing, water, electrical systems, and other facility utilities in the production environment\n\n - Install, modify, and repair air drops, lines, and facility systems to support manufacturing operations.\n\n - Troubleshoot and maintain facility-dependent equipment such as boom lifts, scissor lifts, forklifts, electric pallet jacks, and overhead cranes\n\n - Respond to building repair issues including leaking faucets, toilets, roof leaks, and equipment leaks\n\n - Maintain and repair access systems including roll-up doors, pedestrian doors, and automated gate systems\n\n - Coordinate vendor work, document maintenance activities and work orders, order parts, and support facility changes such as equipment installation, relocation, and office moves while following safety procedures\n\n - Support of fire/life safety installations and testing\n\nRequired Skills:\n\n - Ability to work second shift: Monday – Friday, 2pm -10:30pm\n\n - 7+ years of experience in building, mechanical, or facility maintenance\n\n - Strong mechanical troubleshooting and repair skills, including use of diagnostic tools\n\n - Knowledge of LOTO (Lockout/Tagout) procedures and OSHA safety compliance\n\n - Skilled at reading and interpreting technical drawings, manuals, and schematics\n\n - Experienced operating motorized lift equipment (e.g., forklifts, scissor/boom lifts)\n\n - Comfortable working at heights and using fall protection equipment\n\n - Physical ability to squat, reach, climb, and lift up to 50 pounds\n\n - High school diploma or equivalent required; technical certifications in HVAC or related trades are a plus\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"bcf1cf97-2e73-4e8c-b55f-a26b685ea3f2","title":"R&D Engineer - Fusion Generator Operations","department":"Research & Development ","team":"Research & Development ","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-27T20:58:11.509+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/bcf1cf97-2e73-4e8c-b55f-a26b685ea3f2","applyUrl":"https://jobs.ashbyhq.com/helion/bcf1cf97-2e73-4e8c-b55f-a26b685ea3f2/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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-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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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-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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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":"9a843fbd-4a00-45cb-8f2f-8ac263662122","title":"Lead Production Technician","department":"Capacitor Manufacturing","team":"Capacitor Manufacturing","employmentType":"FullTime","location":"Everett, WA","secondaryLocations":[],"publishedAt":"2026-04-29T17:20:03.358+00:00","isListed":true,"isRemote":false,"workplaceType":"OnSite","address":{"postalAddress":{"addressRegion":"WA","addressCountry":"United States","addressLocality":"Everett"}},"jobUrl":"https://jobs.ashbyhq.com/helion/9a843fbd-4a00-45cb-8f2f-8ac263662122","applyUrl":"https://jobs.ashbyhq.com/helion/9a843fbd-4a00-45cb-8f2f-8ac263662122/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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Lead Production Technician, you will oversee the assembly of Helion's subassemblies (or module assembly lines) on 2nd shift - 2:00pm to 10:30pm, Monday - Friday. You will help deliver hardware and coach fellow technicians on the Production Team. You will report directly to one of our Production Supervisors at our Everett, WA office.
This position reports directly to the Production Supervisor and serves as the primary point of contact for technicians during daily operations.
You Will:
Collaborate with a versatile team to assemble, test, and troubleshoot electromechanical components
Be the first line of defense for troubleshooting issues on the production floor, directly supporting technicians or coordinating with experts to resolve problems
Escalate persistent issues that hinder the achievement of target production rates
Develop training materials and curriculums for tooling operation, assembly procedures, scanning accuracy, quality assurance, station specific guidance
Be the primary quality assurance expert, ensuring technicians are proficient in performing required inspections, maintaining accurate inventory signals, and meeting expectations of work instruction
Manage, organize and maintain consumables, tools, and parts
Develop and enforce a 6S schedule, ensuring it is meticulously followed and maintained
Demonstrate quality of work, setting a new standard for the team
Required Skills:
1+ years of experience as an electrical/mechanical technician focused on quality, delivery, and safety in a production environment
Experience maintaining high precision and accuracy on builds with little to no direct oversight
Demonstrated proficiency with hand tools and an MES system
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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Lead Production Technician, you will oversee the assembly of Helion's subassemblies (or module assembly lines) on 2nd shift - 2:00pm to 10:30pm, Monday - Friday. You will help deliver hardware and coach fellow technicians on the Production Team. You will report directly to one of our Production Supervisors at our Everett, WA office.\n\nThis position reports directly to the Production Supervisor and serves as the primary point of contact for technicians during daily operations.\n\nYou Will:\n\n - Collaborate with a versatile team to assemble, test, and troubleshoot electromechanical components\n\n - Be the first line of defense for troubleshooting issues on the production floor, directly supporting technicians or coordinating with experts to resolve problems\n\n - Escalate persistent issues that hinder the achievement of target production rates\n\n - Develop training materials and curriculums for tooling operation, assembly procedures, scanning accuracy, quality assurance, station specific guidance\n\n - Be the primary quality assurance expert, ensuring technicians are proficient in performing required inspections, maintaining accurate inventory signals, and meeting expectations of work instruction\n\n - Manage, organize and maintain consumables, tools, and parts\n\n - Develop and enforce a 6S schedule, ensuring it is meticulously followed and maintained\n\n - Demonstrate quality of work, setting a new standard for the team\n\nRequired Skills:\n\n - 1+ years of experience as an electrical/mechanical technician focused on quality, delivery, and safety in a production environment\n\n - Experience maintaining high precision and accuracy on builds with little to no direct oversight\n\n - Demonstrated proficiency with hand tools and an MES system\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.
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 Experimental 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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.\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 Experimental 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\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• 31 Days of PTO (21 vacation days and 10 sick days)\n• 10 Paid holidays, plus company-wide winter break\n• Up to 5% employer 401(k) match\n• Short term disability, long term disability, and life insurance\n• Paid parental leave and support (up to 16 weeks)\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"}