{"jobs":[{"id":"01fc4ad7-4d33-4f64-919f-502bb2c20efc","title":"Senior Software Engineer – Backend (USA Only - 100% Remote)","department":"Engineering","team":"Engineering","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2025-01-10T20:11:08.785+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/01fc4ad7-4d33-4f64-919f-502bb2c20efc","applyUrl":"https://jobs.ashbyhq.com/close/01fc4ad7-4d33-4f64-919f-502bb2c20efc/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><p style=\"min-height:1.5em\"></p><h1>Our Stack</h1><p style=\"min-height:1.5em\">Our backend <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://stackshare.io/close-crm/close\">tech stack</a> consists primarily of Python Flask web apps with our <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a> scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://developer.close.com/\">public API</a> that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. </p><p style=\"min-height:1.5em\">We love open sourcing our code and ideas on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio\">our GitHub</a> and on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://making.close.com/\">The Making of Close</a>, our behind-the-scenes Product &amp; Engineering blog. Check out our open source projects like <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/socketshark\">SocketShark</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/limitlion\">LimitLion</a> and <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/ciso8601\">ciso8601</a>.</p><p style=\"min-height:1.5em\">AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. </p><p style=\"min-height:1.5em\"></p><h1>Our Teams</h1><p style=\"min-height:1.5em\">When you apply, you’ll have an opportunity to highlight the team that appeals to you the most. We’ll do our best to honor this preference, but we'll also be evaluating skillset fit and the needs of the business.</p><p style=\"min-height:1.5em\">One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close - this team is where you’ll start, but over time you’ll likely have the opportunity to work on many different projects.</p><p style=\"min-height:1.5em\">The work splits roughly like this. Pick the team that excites you most:</p><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Agents.</strong> Build Close’s agentic platform and customer-facing AI experiences. Voice Agents, Custom Agents, and Ask Chloe are already in flight. You’d work on the shared intelligence and orchestration layer that powers AI-driven processes across the product. That includes the ecosystem around our APIs and MCP surface, which enables external agents like Claude and ChatGPT to operate Close. This team is pushing deeper into applied AI, retrieval, and agent infrastructure more than ever before.</p></li><li><p style=\"min-height:1.5em\"><strong>Communications.</strong> Own the voice, SMS, and email infrastructure powering Close — Twilio, WebRTC, WebSockets, AssemblyAI, ElevenLabs, and more. You’ll help build our voice, messaging, and conversational AI agents while scaling real-time AI across calls, email, and calendar sync infrastructure.</p></li><li><p style=\"min-height:1.5em\"><strong>CRM.</strong> Build the structured context layer that humans and agents both depend on. We're rebuilding the data model so it flexes with real businesses, making the CRM agent-ready (retrieval, traversal, action coverage through MCP and our public API), and shipping the next generation of AI-native CRM features (AI Enrich, Autofill, AI Search). Operating on billions of Mongo documents with Elasticsearch underneath.</p></li><li><p style=\"min-height:1.5em\"><strong>Growth.</strong> Run the experiments and own the billing infrastructure that turn trials into paid customers. Stripe metered billing, AI credit top-ups, the activation and conversion funnel, and the team's biggest bet right now: agentic onboarding (an agent that walks new customers through setup, configuration, and first comms). Hypothesis-driven, metric-first.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>You Are</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">A seasoned engineer. Python is our backbone, but perhaps you’ve worked across Go, Rust, or TypeScript. You pick the right tool for the problem rather than retreating to what you know. You’ve seen a variety of problems, can collaborate and self-direct.</p></li><li><p style=\"min-height:1.5em\">Building AI. You've shipped LLM-backed features for real users and have a POV on where they're trustworthy, where they fall over, and how to get them production-ready when customers bet revenue on the output. We use Pydantic, Temporal, LangFuse, and other modern AI infrastructure tooling to power our agent platform.</p></li><li><p style=\"min-height:1.5em\">Working with AI in your day-to-day. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex and other best-in-class developer tools) and treat learning and experimentation as part of the work.</p></li><li><p style=\"min-height:1.5em\">A builder first. You’d rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship.</p></li><li><p style=\"min-height:1.5em\">Opinionated about API design for modern software. You've shipped internet-facing APIs and you think about who's on the other end - apps, agents, humans poking around in docs - and what each of them needs.</p></li><li><p style=\"min-height:1.5em\">Battle-tested. You've debugged incidents where latency budgets didn't hold, owned a system everyone else relied on, or carried a pager for something with real customer impact.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n\n\n\nOUR STACK\n\nOur backend tech stack https://stackshare.io/close-crm/close consists primarily of Python Flask web apps with our TaskTiger https://github.com/closeio/tasktiger scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented public API https://developer.close.com/ that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. \n\nWe love open sourcing our code and ideas on our GitHub https://github.com/closeio and on The Making of Close https://making.close.com/, our behind-the-scenes Product & Engineering blog. Check out our open source projects like SocketShark https://github.com/closeio/socketshark, TaskTiger https://github.com/closeio/tasktiger, LimitLion https://github.com/closeio/limitlion and ciso8601 https://github.com/closeio/ciso8601.\n\nAI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. \n\n\n\n\nOUR TEAMS\n\nWhen you apply, you’ll have an opportunity to highlight the team that appeals to you the most. We’ll do our best to honor this preference, but we'll also be evaluating skillset fit and the needs of the business.\n\nOne thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close - this team is where you’ll start, but over time you’ll likely have the opportunity to work on many different projects.\n\nThe work splits roughly like this. Pick the team that excites you most:\n\n - Agents. Build Close’s agentic platform and customer-facing AI experiences. Voice Agents, Custom Agents, and Ask Chloe are already in flight. You’d work on the shared intelligence and orchestration layer that powers AI-driven processes across the product. That includes the ecosystem around our APIs and MCP surface, which enables external agents like Claude and ChatGPT to operate Close. This team is pushing deeper into applied AI, retrieval, and agent infrastructure more than ever before.\n\n - Communications. Own the voice, SMS, and email infrastructure powering Close — Twilio, WebRTC, WebSockets, AssemblyAI, ElevenLabs, and more. You’ll help build our voice, messaging, and conversational AI agents while scaling real-time AI across calls, email, and calendar sync infrastructure.\n\n - CRM. Build the structured context layer that humans and agents both depend on. We're rebuilding the data model so it flexes with real businesses, making the CRM agent-ready (retrieval, traversal, action coverage through MCP and our public API), and shipping the next generation of AI-native CRM features (AI Enrich, Autofill, AI Search). Operating on billions of Mongo documents with Elasticsearch underneath.\n\n - Growth. Run the experiments and own the billing infrastructure that turn trials into paid customers. Stripe metered billing, AI credit top-ups, the activation and conversion funnel, and the team's biggest bet right now: agentic onboarding (an agent that walks new customers through setup, configuration, and first comms). Hypothesis-driven, metric-first.\n\n\n\n\nYOU ARE\n\n - A seasoned engineer. Python is our backbone, but perhaps you’ve worked across Go, Rust, or TypeScript. You pick the right tool for the problem rather than retreating to what you know. You’ve seen a variety of problems, can collaborate and self-direct.\n\n - Building AI. You've shipped LLM-backed features for real users and have a POV on where they're trustworthy, where they fall over, and how to get them production-ready when customers bet revenue on the output. We use Pydantic, Temporal, LangFuse, and other modern AI infrastructure tooling to power our agent platform.\n\n - Working with AI in your day-to-day. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex and other best-in-class developer tools) and treat learning and experimentation as part of the work.\n\n - A builder first. You’d rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship.\n\n - Opinionated about API design for modern software. You've shipped internet-facing APIs and you think about who's on the other end - apps, agents, humans poking around in docs - and what each of them needs.\n\n - Battle-tested. You've debugged incidents where latency budgets didn't hold, owned a system everyone else relied on, or carried a pager for something with real customer impact.\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"bbd78474-bee4-4fdc-a670-9234457bcf29","title":"Senior Frontend Engineer – Growth (USA Only - 100% Remote)","department":"Engineering","team":"Engineering","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-08-03T19:57:55.306+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/bbd78474-bee4-4fdc-a670-9234457bcf29","applyUrl":"https://jobs.ashbyhq.com/close/bbd78474-bee4-4fdc-a670-9234457bcf29/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><p style=\"min-height:1.5em\"></p><h1>Our Stack</h1><p style=\"min-height:1.5em\">Our frontend is a single-page TypeScript web app built in React. We bundle with Vite and target modern browsers only. We test with Vitest, React Testing Library, Playwright, and Chromatic for visual regression. Our UI updates in near real-time using WebSockets and WebRTC, is styled via CSS modules, and is performance-tuned with route-based code splitting and skeleton UI. We've built our own design system, documented in an extensive Storybook.</p><p style=\"min-height:1.5em\">We sweat the UI/UX details and work collaboratively with Product throughout the design process - from lo-fi wireframes through Figma and into code. Our frontend is built on top of our REST API and GraphQL endpoints, backed by a Python/Flask/FastAPI, MongoDB, Postgres and Elasticsearch stack running on AWS.</p><p style=\"min-height:1.5em\">We love open sourcing our code and ideas on <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://github.com/closeio\">our GitHub</a> and on <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/\">The Making of Close</a>, our behind-the-scenes Product &amp; Engineering blog. Check our projects such as <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-react-custom-scroller-component\">react-custom-scroller</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-use-infinite-scroll-react-hook\">use-infinite-scroll</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-use-abortable-effect-react-hook\">use-abortable-effect</a>, and <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducing-smart-tooltip-delay-library\">smart-tooltip-delay</a> or insights from our day-to-day work like <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/developing-the-call-assistant\">Under the Hood: Developing Close's AI-Powered Call Assistant</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/cutting-our-lead-page-lcp-by-half\">Cutting our Lead page LCP by half</a>, and <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/\">Highlights From a Complex Downshift.js Refactor</a>.</p><p style=\"min-height:1.5em\">AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting.</p><div style=\"min-height:1.2em;margin-top:0;margin-bottom:0\"> </div><h1>About the Role</h1><p style=\"min-height:1.5em\">The Growth team owns the surfaces that turn someone who just signed up into a paying customer who sticks around — onboarding, activation, billing and checkout. The operating mode is simple: find the fastest path to learning, ship it, then standardize and clean up. The Growth team ships in weeks what other teams might take months to do.</p><p style=\"min-height:1.5em\">Two of our exciting projects right now:</p><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Agent-forward experience.</strong> We're exploring how agents and AI can make the experience better for our customers and demonstrate the value of Close faster. Our focus is helping users get real value from the product, not just automating on their behalf.</p></li><li><p style=\"min-height:1.5em\"><strong>Creating data from unstructured sources.</strong> We're building ways to turn the information customers already have, like their inbox, into a working CRM, so they can skip the manual data entry and see value from Close faster.</p></li></ul><p style=\"min-height:1.5em\"><em>One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close.</em></p><p style=\"min-height:1.5em\"></p><h1>You are</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>A seasoned frontend engineer.</strong> React is our bread and butter, but perhaps you've worked across Vue, Svelte, or Solid. You pick the right tool for the problem rather than retreating to what you know. You've seen a variety of problems, can collaborate and self-direct.</p></li><li><p style=\"min-height:1.5em\"><strong>Fluent in experimentation.</strong> You understand what data points to capture in an experiment, what a funnel looks like, and how to design a feature so it produces meaningful data — not just ship it and hope. This is the core of the role.</p></li><li><p style=\"min-height:1.5em\"><strong>Experienced with B2B experiment structure.</strong> A strong bonus: you've worked in Amplitude on the implementation side, not just the technical configuration side.</p></li><li><p style=\"min-height:1.5em\"><strong>Building AI-powered interfaces.</strong> You've shipped LLM-backed features for real users and have an opinion on where they're trustworthy, where they fall over, and how to make them feel reliable. You know how to design for streamed responses, uncertain states, and agent-driven UIs.</p></li><li><p style=\"min-height:1.5em\"><strong>Working with AI daily.</strong> You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex, and other best-in-class developer tools) and treat learning and experimentation as part of the work.</p></li><li><p style=\"min-height:1.5em\"><strong>A builder first.</strong> You'd rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship — and you're comfortable standardizing and cleaning up after the learning lands.</p></li></ul><p style=\"min-height:1.5em\"></p><h2>You will</h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Build agent-forward onboarding.</strong> An agent that teaches by doing: clicking around, highlighting, demonstrating the app while it talks to the user. You'll own the UI layer that makes an agent feel like a trainer instead of a chat window — and help find the balance between the agent doing everything and the user learning enough to make Close's workflow their own.</p></li><li><p style=\"min-height:1.5em\"><strong>Turn an inbox into a CRM.</strong> Build the experience around our unstructured-data pipeline: a user connects their email, and we surface detected deals, contacts, and a full book of business. Your job is making that moment feel like magic — and making it trustworthy enough to act on.</p></li><li><p style=\"min-height:1.5em\"><strong>Design experiments, not just features.</strong> Decide what to instrument, define the funnel, and structure metrics so a B2B reality (org-level conversion, user-level behavior) still yields clean answers. You'll own this in Amplitude end to end.</p></li><li><p style=\"min-height:1.5em\"><strong>Work across the whole app.</strong> Growth doesn't stay in its lane — onboarding, activation, billing, import, and whatever surface the next experiment needs. The Growth team experiments touch every aspect of the product.</p></li><li><p style=\"min-height:1.5em\"><strong>Move at learning speed.</strong> Fastest path to insight first, then standardize and clean up. You'll ship in weeks what elsewhere takes months, and help decide which prototypes deserve to become permanent.</p></li><li><p style=\"min-height:1.5em\"><strong>Have ownership and autonomy.</strong> The team is relatively new. How Growth frontend engineering works at Close is, in part, yours to shape.</p></li></ul><p style=\"min-height:1.5em\"><strong>Tech you'll touch:</strong> TypeScript, React, Vite, Amplitude, CSS Modules, Storybook, Playwright, WebSockets — plus the agent stack behind Chloe.</p><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n\n\n\nOUR STACK\n\nOur frontend is a single-page TypeScript web app built in React. We bundle with Vite and target modern browsers only. We test with Vitest, React Testing Library, Playwright, and Chromatic for visual regression. Our UI updates in near real-time using WebSockets and WebRTC, is styled via CSS modules, and is performance-tuned with route-based code splitting and skeleton UI. We've built our own design system, documented in an extensive Storybook.\n\nWe sweat the UI/UX details and work collaboratively with Product throughout the design process - from lo-fi wireframes through Figma and into code. Our frontend is built on top of our REST API and GraphQL endpoints, backed by a Python/Flask/FastAPI, MongoDB, Postgres and Elasticsearch stack running on AWS.\n\nWe love open sourcing our code and ideas on our GitHub https://github.com/closeio and on The Making of Close https://making.close.com/, our behind-the-scenes Product & Engineering blog. Check our projects such as react-custom-scroller https://making.close.com/posts/introducting-react-custom-scroller-component, use-infinite-scroll https://making.close.com/posts/introducting-use-infinite-scroll-react-hook, use-abortable-effect https://making.close.com/posts/introducting-use-abortable-effect-react-hook, and smart-tooltip-delay https://making.close.com/posts/introducing-smart-tooltip-delay-library or insights from our day-to-day work like Under the Hood: Developing Close's AI-Powered Call Assistant https://making.close.com/posts/developing-the-call-assistant, Cutting our Lead page LCP by half https://making.close.com/posts/cutting-our-lead-page-lcp-by-half, and Highlights From a Complex Downshift.js Refactor https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/.\n\nAI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting.\n\n \n\n\nABOUT THE ROLE\n\nThe Growth team owns the surfaces that turn someone who just signed up into a paying customer who sticks around — onboarding, activation, billing and checkout. The operating mode is simple: find the fastest path to learning, ship it, then standardize and clean up. The Growth team ships in weeks what other teams might take months to do.\n\nTwo of our exciting projects right now:\n\n - Agent-forward experience. We're exploring how agents and AI can make the experience better for our customers and demonstrate the value of Close faster. Our focus is helping users get real value from the product, not just automating on their behalf.\n\n - Creating data from unstructured sources. We're building ways to turn the information customers already have, like their inbox, into a working CRM, so they can skip the manual data entry and see value from Close faster.\n\nOne thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close.\n\n\n\n\nYOU ARE\n\n - A seasoned frontend engineer. React is our bread and butter, but perhaps you've worked across Vue, Svelte, or Solid. You pick the right tool for the problem rather than retreating to what you know. You've seen a variety of problems, can collaborate and self-direct.\n\n - Fluent in experimentation. You understand what data points to capture in an experiment, what a funnel looks like, and how to design a feature so it produces meaningful data — not just ship it and hope. This is the core of the role.\n\n - Experienced with B2B experiment structure. A strong bonus: you've worked in Amplitude on the implementation side, not just the technical configuration side.\n\n - Building AI-powered interfaces. You've shipped LLM-backed features for real users and have an opinion on where they're trustworthy, where they fall over, and how to make them feel reliable. You know how to design for streamed responses, uncertain states, and agent-driven UIs.\n\n - Working with AI daily. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex, and other best-in-class developer tools) and treat learning and experimentation as part of the work.\n\n - A builder first. You'd rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship — and you're comfortable standardizing and cleaning up after the learning lands.\n\n\n\n\nYOU WILL\n\n - Build agent-forward onboarding. An agent that teaches by doing: clicking around, highlighting, demonstrating the app while it talks to the user. You'll own the UI layer that makes an agent feel like a trainer instead of a chat window — and help find the balance between the agent doing everything and the user learning enough to make Close's workflow their own.\n\n - Turn an inbox into a CRM. Build the experience around our unstructured-data pipeline: a user connects their email, and we surface detected deals, contacts, and a full book of business. Your job is making that moment feel like magic — and making it trustworthy enough to act on.\n\n - Design experiments, not just features. Decide what to instrument, define the funnel, and structure metrics so a B2B reality (org-level conversion, user-level behavior) still yields clean answers. You'll own this in Amplitude end to end.\n\n - Work across the whole app. Growth doesn't stay in its lane — onboarding, activation, billing, import, and whatever surface the next experiment needs. The Growth team experiments touch every aspect of the product.\n\n - Move at learning speed. Fastest path to insight first, then standardize and clean up. You'll ship in weeks what elsewhere takes months, and help decide which prototypes deserve to become permanent.\n\n - Have ownership and autonomy. The team is relatively new. How Growth frontend engineering works at Close is, in part, yours to shape.\n\nTech you'll touch: TypeScript, React, Vite, Amplitude, CSS Modules, Storybook, Playwright, WebSockets — plus the agent stack behind Chloe.\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"8b67d1fa-5852-4f7d-b8c2-cedc20b16da7","title":"Senior Software Engineer – Frontend/React (USA Only - 100% Remote)","department":"Engineering","team":"Engineering","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-02-02T22:25:19.120+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/8b67d1fa-5852-4f7d-b8c2-cedc20b16da7","applyUrl":"https://jobs.ashbyhq.com/close/8b67d1fa-5852-4f7d-b8c2-cedc20b16da7/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><p style=\"min-height:1.5em\"></p><h1>Our Stack</h1><p style=\"min-height:1.5em\">Our frontend is a single-page TypeScript web app built in React. We bundle with Vite and target modern browsers only. We test with Vitest, React Testing Library, Playwright, and Chromatic for visual regression. Our UI updates in near real-time using WebSockets and WebRTC, is styled via CSS modules, and is performance-tuned with route-based code splitting and skeleton UI. We've built our own design system, documented in an extensive Storybook.</p><p style=\"min-height:1.5em\">We sweat the UI/UX details and work collaboratively with Product throughout the design process - from lo-fi wireframes through Figma and into code. Our frontend is built on top of our REST API and GraphQL endpoints, backed by a Python/Flask/FastAPI, MongoDB, Postgres and Elasticsearch stack running on AWS.</p><p style=\"min-height:1.5em\">We love open sourcing our code and ideas on <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://github.com/closeio\">our GitHub</a> and on <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/\">The Making of Close</a>, our behind-the-scenes Product &amp; Engineering blog. Check our projects such as <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-react-custom-scroller-component\">react-custom-scroller</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-use-infinite-scroll-react-hook\">use-infinite-scroll</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducting-use-abortable-effect-react-hook\">use-abortable-effect</a>, and <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/introducing-smart-tooltip-delay-library\">smart-tooltip-delay</a> or insights from our day-to-day work like <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/developing-the-call-assistant\">Under the Hood: Developing Close's AI-Powered Call Assistant</a>, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/cutting-our-lead-page-lcp-by-half\">Cutting our Lead page LCP by half</a>, and <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/\">Highlights From a Complex Downshift.js Refactor</a>.</p><p style=\"min-height:1.5em\">AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting.</p><p style=\"min-height:1.5em\"></p><h1><strong>Our Teams</strong></h1><p style=\"min-height:1.5em\">When you apply, you’ll have an opportunity to highlight the team that appeals to you the most. We’ll do our best to honor this preference, but we'll also be evaluating skillset fit and the needs of the business.</p><p style=\"min-height:1.5em\">One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close - this team is where you’ll start, but over time you’ll likely have the opportunity to work on many different projects.</p><p style=\"min-height:1.5em\">The work splits roughly like this. Pick the team that excites you most:</p><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Agents.</strong> Build the UI that puts AI in the hands of Close customers. This means the creation and configuration experiences for Close's growing family of agents, the conversational interface through which users ask questions and get answers in plain language, and the observability surfaces that let customers see what their agents are doing and why. The design challenges here are genuinely new: you'll be figuring out how AI capabilities should surface in the product.</p></li><li><p style=\"min-height:1.5em\"><strong>Communications.</strong> Own the UI for one of the most real-time, high-stakes surfaces in Close: calls. You'll build in-call experiences that run on WebRTC and WebSockets, live transcript and coaching views where latency visibly matters, power dialing flows built for reps making hundreds of calls a week, and the email, SMS, and scheduling surfaces that keep async outreach moving.</p></li><li><p style=\"min-height:1.5em\"><strong>CRM.</strong> Build the core surfaces that salespeople and agents both depend on: lead pages, pipeline views, smart search, activity feeds. You'll make these interactions fast and delightful for humans navigating familiar patterns, while also building the AI-powered features that are making the CRM smarter.</p></li><li><p style=\"min-height:1.5em\"><strong>Growth.</strong> Own the surfaces that turn someone who just signed up into a paying customer who sticks around. That means onboarding flows, activation moments, billing and checkout UI, and the import experience - the first things new users touch. You'll work in a hypothesis-driven, experiment-first environment: ship fast, measure the impact on conversion and activation, and iterate. If you like knowing whether your work moved the needle, this is the team for it.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>You Are</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">A seasoned frontend engineer. React is our bread and butter, but perhaps you've worked across Vue, Svelte, or Solid. You pick the right tool for the problem rather than retreating to what you know. You've seen a variety of problems, can collaborate and self-direct.</p></li><li><p style=\"min-height:1.5em\">Building AI-powered interfaces. You've shipped LLM-backed features for real users and have a POV on where they're trustworthy, where they fall over, and how to make them feel reliable when customers bet their workflow on the output. You know how to design for streamed responses, uncertain states, and agent-driven UIs.</p></li><li><p style=\"min-height:1.5em\">Working with AI daily. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex, and other best-in-class developer tools) and treat learning and experimentation as part of the work.</p></li><li><p style=\"min-height:1.5em\">A builder first. You'd rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship.</p></li><li><p style=\"min-height:1.5em\">Opinionated about UI craft and component design. You've built reusable systems that other engineers loved using, and you think about who's on the other end — sales reps in the middle of a call, power users who live in the keyboard, and customers who just need it to work.</p></li><li><p style=\"min-height:1.5em\">Battle-tested. You've debugged performance regressions in production, owned a component library everyone else relied on, or shipped a high-stakes release where the UX had to be right under real customer pressure.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n\n\n\nOUR STACK\n\nOur frontend is a single-page TypeScript web app built in React. We bundle with Vite and target modern browsers only. We test with Vitest, React Testing Library, Playwright, and Chromatic for visual regression. Our UI updates in near real-time using WebSockets and WebRTC, is styled via CSS modules, and is performance-tuned with route-based code splitting and skeleton UI. We've built our own design system, documented in an extensive Storybook.\n\nWe sweat the UI/UX details and work collaboratively with Product throughout the design process - from lo-fi wireframes through Figma and into code. Our frontend is built on top of our REST API and GraphQL endpoints, backed by a Python/Flask/FastAPI, MongoDB, Postgres and Elasticsearch stack running on AWS.\n\nWe love open sourcing our code and ideas on our GitHub https://github.com/closeio and on The Making of Close https://making.close.com/, our behind-the-scenes Product & Engineering blog. Check our projects such as react-custom-scroller https://making.close.com/posts/introducting-react-custom-scroller-component, use-infinite-scroll https://making.close.com/posts/introducting-use-infinite-scroll-react-hook, use-abortable-effect https://making.close.com/posts/introducting-use-abortable-effect-react-hook, and smart-tooltip-delay https://making.close.com/posts/introducing-smart-tooltip-delay-library or insights from our day-to-day work like Under the Hood: Developing Close's AI-Powered Call Assistant https://making.close.com/posts/developing-the-call-assistant, Cutting our Lead page LCP by half https://making.close.com/posts/cutting-our-lead-page-lcp-by-half, and Highlights From a Complex Downshift.js Refactor https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/.\n\nAI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting.\n\n\n\n\nOUR TEAMS\n\nWhen you apply, you’ll have an opportunity to highlight the team that appeals to you the most. We’ll do our best to honor this preference, but we'll also be evaluating skillset fit and the needs of the business.\n\nOne thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close - this team is where you’ll start, but over time you’ll likely have the opportunity to work on many different projects.\n\nThe work splits roughly like this. Pick the team that excites you most:\n\n - Agents. Build the UI that puts AI in the hands of Close customers. This means the creation and configuration experiences for Close's growing family of agents, the conversational interface through which users ask questions and get answers in plain language, and the observability surfaces that let customers see what their agents are doing and why. The design challenges here are genuinely new: you'll be figuring out how AI capabilities should surface in the product.\n\n - Communications. Own the UI for one of the most real-time, high-stakes surfaces in Close: calls. You'll build in-call experiences that run on WebRTC and WebSockets, live transcript and coaching views where latency visibly matters, power dialing flows built for reps making hundreds of calls a week, and the email, SMS, and scheduling surfaces that keep async outreach moving.\n\n - CRM. Build the core surfaces that salespeople and agents both depend on: lead pages, pipeline views, smart search, activity feeds. You'll make these interactions fast and delightful for humans navigating familiar patterns, while also building the AI-powered features that are making the CRM smarter.\n\n - Growth. Own the surfaces that turn someone who just signed up into a paying customer who sticks around. That means onboarding flows, activation moments, billing and checkout UI, and the import experience - the first things new users touch. You'll work in a hypothesis-driven, experiment-first environment: ship fast, measure the impact on conversion and activation, and iterate. If you like knowing whether your work moved the needle, this is the team for it.\n\n\n\n\nYOU ARE\n\n - A seasoned frontend engineer. React is our bread and butter, but perhaps you've worked across Vue, Svelte, or Solid. You pick the right tool for the problem rather than retreating to what you know. You've seen a variety of problems, can collaborate and self-direct.\n\n - Building AI-powered interfaces. You've shipped LLM-backed features for real users and have a POV on where they're trustworthy, where they fall over, and how to make them feel reliable when customers bet their workflow on the output. You know how to design for streamed responses, uncertain states, and agent-driven UIs.\n\n - Working with AI daily. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex, and other best-in-class developer tools) and treat learning and experimentation as part of the work.\n\n - A builder first. You'd rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship.\n\n - Opinionated about UI craft and component design. You've built reusable systems that other engineers loved using, and you think about who's on the other end — sales reps in the middle of a call, power users who live in the keyboard, and customers who just need it to work.\n\n - Battle-tested. You've debugged performance regressions in production, owned a component library everyone else relied on, or shipped a high-stakes release where the UX had to be right under real customer pressure.\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"70a235e8-230f-492c-bb34-5559fe648298","title":"Software Engineer – Support (USA Only - 100% Remote)","department":"Support","team":"Support","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-05-08T18:34:15.273+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/70a235e8-230f-492c-bb34-5559fe648298","applyUrl":"https://jobs.ashbyhq.com/close/70a235e8-230f-492c-bb34-5559fe648298/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><p style=\"min-height:1.5em\"></p><h1>About the Role</h1><p style=\"min-height:1.5em\">We’re hiring a Software Engineer to build the tools and AI Systems that our Support team runs on. Support is one of the things our customers love most about Close, and as ticket volume grows and AI rewrites what good support looks like, we’re adding another embedded engineer inside the Support function to continue building the systems that make our team great and keep our customers happy.</p><p style=\"min-height:1.5em\">AI runs through everything we're building here. This person will be tasked with deciding what parts of the support workflow to automate and what to leave alone, then shipping those decisions. You'll work directly with the Support team and our other Support Engineers, so you know what's most valuable to build and have close technical collaborators.</p><p style=\"min-height:1.5em\">You’ll report to our Director of Support.</p><p style=\"min-height:1.5em\"></p><h2>You Are</h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">A Software Engineer who builds for the person sitting next to you. You have 3+ years of Software Engineering experience and can write clean, production-quality code. You’re drawn to problems where you can watch a Support Rep get faster and more effective within a few days of shipping. You're excited by the idea of a tight, collaborative feedback loop.</p></li><li><p style=\"min-height:1.5em\">Backed by a degree or experiences in the sciences. You have a degree or rigorous experience in Computer Science, Mathematics, Physics, Electrical or Mechanical Engineering. This shows up in how you reason through systems and approach problems.</p></li><li><p style=\"min-height:1.5em\">Technically deep. You're fluent in Python, Rust, Go, or Typescript/Javascript. You have built information retrieval systems using semantic search / RAG.</p></li><li><p style=\"min-height:1.5em\">A systems thinker. When you see a manual process, you have an unignorable itch to fix it. You think about upstream and downstream consequences before you commit.</p></li><li><p style=\"min-height:1.5em\">AI-fluent, not AI-dependent. You use Claude, Codex, Pi, or whatever makes you faster. You also understand what the code is doing, can debug it when it breaks, and know when to set the tools down and think from first principles.</p></li><li><p style=\"min-height:1.5em\">A clear, async communicator. You write well. Your technical specs are readable, your PRs are well-documented, and your Slack messages don't create more questions than they answer. You thrive in a fully remote, async-first environment.</p></li><li><p style=\"min-height:1.5em\">Comfortable with autonomy. You scope your own work, manage your own priorities, and don't need heavy oversight to ship. You're pragmatic over theoretical and have a strong bias toward action.</p></li><li><p style=\"min-height:1.5em\">Located in US time zones. (ET, CT, MT, or PT)</p><p style=\"min-height:1.5em\"></p></li></ul><h2>You Will</h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Build internal tools that scale Support. Design and ship the systems that Support Engineers and Support Reps rely on daily — AI drafting tools, autonomous reply systems, workflow automation, reporting dashboards, and anything else that removes friction from the support operation.</p></li><li><p style=\"min-height:1.5em\">Own projects end to end. You're the engineer who takes \"this part of the workflow is painful\" to \"this part of the workflow doesn't exist anymore.\" No PM intermediary, no thrown-over-the-wall requirements. You work closely with the Support team to understand what to build, then you build it.</p></li><li><p style=\"min-height:1.5em\">Ship customer-facing tools when they take work off the queue. You’ll build self-service migration scripts and diagnostic tools customers can run themselves instead of opening a ticket.</p></li><li><p style=\"min-height:1.5em\">Collaborate closely with Support. Reps and Engineers are your primary users and your best source of requirements. You're embedded enough that you see what's actually broken before anyone files a ticket.</p></li><li><p style=\"min-height:1.5em\">Improve the systems underneath the work. Better abstractions, more reliable integrations across Close, Stripe, Twilio, and the rest of the stack. What you build today becomes infrastructure the team builds on tomorrow.</p></li><li><p style=\"min-height:1.5em\">Experiment and ship. The team has real latitude to try new approaches. If there's a better way to do something, you're encouraged to prototype it, measure it, and ship it!</p></li></ul><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n\n\n\nABOUT THE ROLE\n\nWe’re hiring a Software Engineer to build the tools and AI Systems that our Support team runs on. Support is one of the things our customers love most about Close, and as ticket volume grows and AI rewrites what good support looks like, we’re adding another embedded engineer inside the Support function to continue building the systems that make our team great and keep our customers happy.\n\nAI runs through everything we're building here. This person will be tasked with deciding what parts of the support workflow to automate and what to leave alone, then shipping those decisions. You'll work directly with the Support team and our other Support Engineers, so you know what's most valuable to build and have close technical collaborators.\n\nYou’ll report to our Director of Support.\n\n\n\n\nYOU ARE\n\n - A Software Engineer who builds for the person sitting next to you. You have 3+ years of Software Engineering experience and can write clean, production-quality code. You’re drawn to problems where you can watch a Support Rep get faster and more effective within a few days of shipping. You're excited by the idea of a tight, collaborative feedback loop.\n\n - Backed by a degree or experiences in the sciences. You have a degree or rigorous experience in Computer Science, Mathematics, Physics, Electrical or Mechanical Engineering. This shows up in how you reason through systems and approach problems.\n\n - Technically deep. You're fluent in Python, Rust, Go, or Typescript/Javascript. You have built information retrieval systems using semantic search / RAG.\n\n - A systems thinker. When you see a manual process, you have an unignorable itch to fix it. You think about upstream and downstream consequences before you commit.\n\n - AI-fluent, not AI-dependent. You use Claude, Codex, Pi, or whatever makes you faster. You also understand what the code is doing, can debug it when it breaks, and know when to set the tools down and think from first principles.\n\n - A clear, async communicator. You write well. Your technical specs are readable, your PRs are well-documented, and your Slack messages don't create more questions than they answer. You thrive in a fully remote, async-first environment.\n\n - Comfortable with autonomy. You scope your own work, manage your own priorities, and don't need heavy oversight to ship. You're pragmatic over theoretical and have a strong bias toward action.\n\n - Located in US time zones. (ET, CT, MT, or PT)\n   \n   \n\n\nYOU WILL\n\n - Build internal tools that scale Support. Design and ship the systems that Support Engineers and Support Reps rely on daily — AI drafting tools, autonomous reply systems, workflow automation, reporting dashboards, and anything else that removes friction from the support operation.\n\n - Own projects end to end. You're the engineer who takes \"this part of the workflow is painful\" to \"this part of the workflow doesn't exist anymore.\" No PM intermediary, no thrown-over-the-wall requirements. You work closely with the Support team to understand what to build, then you build it.\n\n - Ship customer-facing tools when they take work off the queue. You’ll build self-service migration scripts and diagnostic tools customers can run themselves instead of opening a ticket.\n\n - Collaborate closely with Support. Reps and Engineers are your primary users and your best source of requirements. You're embedded enough that you see what's actually broken before anyone files a ticket.\n\n - Improve the systems underneath the work. Better abstractions, more reliable integrations across Close, Stripe, Twilio, and the rest of the stack. What you build today becomes infrastructure the team builds on tomorrow.\n\n - Experiment and ship. The team has real latitude to try new approaches. If there's a better way to do something, you're encouraged to prototype it, measure it, and ship it!\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"29f5c695-8282-4407-ac09-2b61b9f2fc1e","title":"Senior Backend Engineer – Agents (USA Only - 100% Remote)","department":"Engineering","team":"Engineering","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-07-16T13:19:05.520+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/29f5c695-8282-4407-ac09-2b61b9f2fc1e","applyUrl":"https://jobs.ashbyhq.com/close/29f5c695-8282-4407-ac09-2b61b9f2fc1e/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><div style=\"min-height:1.2em;margin-top:0;margin-bottom:0\"> </div><h1>Our Stack</h1><p style=\"min-height:1.5em\">Our backend <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://stackshare.io/close-crm/close\">tech stack</a> consists primarily of Python Flask web apps with our <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a> scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://developer.close.com/\">public API</a> that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. </p><p style=\"min-height:1.5em\">We love open sourcing our code and ideas on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio\">our GitHub</a> and on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://making.close.com/\">The Making of Close</a>, our behind-the-scenes Product &amp; Engineering blog. Check out our open source projects like <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/socketshark\">SocketShark</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/limitlion\">LimitLion</a> and <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/ciso8601\">ciso8601</a>.</p><p style=\"min-height:1.5em\">AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. </p><p style=\"min-height:1.5em\"></p><h1>About the Role</h1><p style=\"min-height:1.5em\">We shipped our first agent, <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://close.com/chloe\">Chloe</a>, in 2026. The Agents team owns the platform underneath: the agent core, the eval and observability layer, the MCP surface that external agents (Claude, ChatGPT, ElevenLabs, n8n) operate Close through, and the orchestration that ties it together.</p><p style=\"min-height:1.5em\">The team is running three major streams right now: <strong>Voice Agents</strong>, the <strong>LLM-powered chat assistant</strong>, and <strong>Custom Agents</strong>. Most of the engineering problems here didn't exist a year ago. We're figuring them out in code, in production, in front of 11,000 paying customers.</p><p style=\"min-height:1.5em\">One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close — this team is where you'll start, but over time you'll likely have the opportunity to work on many different projects.</p><p style=\"min-height:1.5em\">This role is open at multiple levels — Software Engineer, Senior, and Staff. You don't need to pick one when you apply: we'll calibrate together during the process.</p><p style=\"min-height:1.5em\"></p><h1>You Are</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>A seasoned engineer.</strong> Python is our backbone, but perhaps you've worked across Go, Rust, or TypeScript. You pick the right tool for the workload rather than retreating to what you know.</p></li><li><p style=\"min-height:1.5em\"><strong>AI-native in production.</strong> You've shipped meaningful, impactful agentic features to users. You have opinions on retrieval, evals, tool design, context engineering, and where the current frontier models fall over.</p></li><li><p style=\"min-height:1.5em\"><strong>Working with AI in your day-to-day.</strong> You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. You have a POV on where they help and where they get in the way.</p></li><li><p style=\"min-height:1.5em\"><strong>A builder first.</strong> You'd rather get a sloppy v1 in front of fifty customers than spend three weeks on abstractions. You ship.</p></li><li><p style=\"min-height:1.5em\"><strong>Battle-tested.</strong> You've debugged incidents where latency budgets didn't hold, owned a system everyone else relied on, or carried a pager for something with real customer impact.</p></li><li><p style=\"min-height:1.5em\"><strong>Close to the research.</strong> You read papers, or you've spent serious time in retrieval, RAG, RLHF, or fine-tuning. Not a researcher, but you can read one and tell us whether the result matters for our problem.</p></li><li><p style=\"min-height:1.5em\"><strong>Comfortable with non-determinism.</strong> Much of your output is probabilistic. Conventional patterns don't hold. You find this fun.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>You Will</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Ship code execution for the assistant.</strong> The assistant decides when writing code beats answering non-deterministically — today that's generating charts and tables in Python on the fly; next it's reusable user-defined tools and calling external APIs to pull in whatever data the task needs.</p></li><li><p style=\"min-height:1.5em\"><strong>Build the eval and observability layer that tells us when an agent is getting better.</strong> Unit tests don't cut it for non-deterministic output. We run evals and tracing (LangFuse and our own tooling) as the bar for shipping: if we can't measure it, we don't ship it.</p></li><li><p style=\"min-height:1.5em\"><strong>Push generated UI forward.</strong> The backend increasingly decides what the user sees — the LLM picks the right presentation (table, chart, widget) and renders it in the assistant, with a full-screen experience and stored, referenceable artifacts on the roadmap. Effectively: customers generate the reports we used to hand-build, one custom report at a time.</p></li><li><p style=\"min-height:1.5em\"><strong>Take Custom Agents from prototype to GA.</strong> Event-driven agents that act on what's happening inside the CRM in real time — an email lands, an agent drafts the reply from knowledge sources and context, the user approves. This is where we differentiate from the general-purpose assistants: we see the events, we have the context.</p></li><li><p style=\"min-height:1.5em\"><strong>Make deterministic and non-deterministic systems work together.</strong> Sales processes need steps that happen every single time; LLMs are bad at that. You'll help fuse our Workflows engine with agentic steps so customers get reliability where it matters and intelligence where it helps.</p></li><li><p style=\"min-height:1.5em\"><strong>Handle the edges that make agents trustworthy.</strong> What happens to a fleet of running agents when a customer's AI credits run out? Pause semantics, recovery, and making sure nothing places a hundred calls that were supposed to happen last week.</p></li><li><p style=\"min-height:1.5em\"><strong>Pick the right model for the job.</strong> We use many providers, test new models constantly, and are moving toward cost-aware routing — simple summarization jobs shouldn't run on frontier-priced models. You'll call when something is production-ready and when it's still a demo.</p></li></ul><p style=\"min-height:1.5em\"><strong>Tech you'll touch:</strong> Python, Temporal, LangFuse, Pydantic, ElevenLabs, MCP, PostgreSQL, MongoDB — plus whichever LLM ships next.</p><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n \n\n\nOUR STACK\n\nOur backend tech stack https://stackshare.io/close-crm/close consists primarily of Python Flask web apps with our TaskTiger https://github.com/closeio/tasktiger scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented public API https://developer.close.com/ that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. \n\nWe love open sourcing our code and ideas on our GitHub https://github.com/closeio and on The Making of Close https://making.close.com/, our behind-the-scenes Product & Engineering blog. Check out our open source projects like SocketShark https://github.com/closeio/socketshark, TaskTiger https://github.com/closeio/tasktiger, LimitLion https://github.com/closeio/limitlion and ciso8601 https://github.com/closeio/ciso8601.\n\nAI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. \n\n\n\n\nABOUT THE ROLE\n\nWe shipped our first agent, Chloe https://close.com/chloe, in 2026. The Agents team owns the platform underneath: the agent core, the eval and observability layer, the MCP surface that external agents (Claude, ChatGPT, ElevenLabs, n8n) operate Close through, and the orchestration that ties it together.\n\nThe team is running three major streams right now: Voice Agents, the LLM-powered chat assistant, and Custom Agents. Most of the engineering problems here didn't exist a year ago. We're figuring them out in code, in production, in front of 11,000 paying customers.\n\nOne thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close — this team is where you'll start, but over time you'll likely have the opportunity to work on many different projects.\n\nThis role is open at multiple levels — Software Engineer, Senior, and Staff. You don't need to pick one when you apply: we'll calibrate together during the process.\n\n\n\n\nYOU ARE\n\n - A seasoned engineer. Python is our backbone, but perhaps you've worked across Go, Rust, or TypeScript. You pick the right tool for the workload rather than retreating to what you know.\n\n - AI-native in production. You've shipped meaningful, impactful agentic features to users. You have opinions on retrieval, evals, tool design, context engineering, and where the current frontier models fall over.\n\n - Working with AI in your day-to-day. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. You have a POV on where they help and where they get in the way.\n\n - A builder first. You'd rather get a sloppy v1 in front of fifty customers than spend three weeks on abstractions. You ship.\n\n - Battle-tested. You've debugged incidents where latency budgets didn't hold, owned a system everyone else relied on, or carried a pager for something with real customer impact.\n\n - Close to the research. You read papers, or you've spent serious time in retrieval, RAG, RLHF, or fine-tuning. Not a researcher, but you can read one and tell us whether the result matters for our problem.\n\n - Comfortable with non-determinism. Much of your output is probabilistic. Conventional patterns don't hold. You find this fun.\n\n\n\n\nYOU WILL\n\n - Ship code execution for the assistant. The assistant decides when writing code beats answering non-deterministically — today that's generating charts and tables in Python on the fly; next it's reusable user-defined tools and calling external APIs to pull in whatever data the task needs.\n\n - Build the eval and observability layer that tells us when an agent is getting better. Unit tests don't cut it for non-deterministic output. We run evals and tracing (LangFuse and our own tooling) as the bar for shipping: if we can't measure it, we don't ship it.\n\n - Push generated UI forward. The backend increasingly decides what the user sees — the LLM picks the right presentation (table, chart, widget) and renders it in the assistant, with a full-screen experience and stored, referenceable artifacts on the roadmap. Effectively: customers generate the reports we used to hand-build, one custom report at a time.\n\n - Take Custom Agents from prototype to GA. Event-driven agents that act on what's happening inside the CRM in real time — an email lands, an agent drafts the reply from knowledge sources and context, the user approves. This is where we differentiate from the general-purpose assistants: we see the events, we have the context.\n\n - Make deterministic and non-deterministic systems work together. Sales processes need steps that happen every single time; LLMs are bad at that. You'll help fuse our Workflows engine with agentic steps so customers get reliability where it matters and intelligence where it helps.\n\n - Handle the edges that make agents trustworthy. What happens to a fleet of running agents when a customer's AI credits run out? Pause semantics, recovery, and making sure nothing places a hundred calls that were supposed to happen last week.\n\n - Pick the right model for the job. We use many providers, test new models constantly, and are moving toward cost-aware routing — simple summarization jobs shouldn't run on frontier-priced models. You'll call when something is production-ready and when it's still a demo.\n\nTech you'll touch: Python, Temporal, LangFuse, Pydantic, ElevenLabs, MCP, PostgreSQL, MongoDB — plus whichever LLM ships next.\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"69c8d365-7de6-4b21-813a-88818e225f4a","title":"Security & Trust Lead (USA Only - 100% Remote)","department":"Operations","team":"Operations","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-07-13T22:12:56.089+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/69c8d365-7de6-4b21-813a-88818e225f4a","applyUrl":"https://jobs.ashbyhq.com/close/69c8d365-7de6-4b21-813a-88818e225f4a/application","descriptionHtml":"<h1><strong>About Us</strong></h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable, which means we answer to our customers and play by our own rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><p style=\"min-height:1.5em\"></p><h1><strong>About the Role</strong></h1><p style=\"min-height:1.5em\">We have 11k+ customers, which means we have a lot of data in our care. Earning and keeping their trust — rigorous security and privacy practices, plus the compliance and audit work that verifies it to customers — has so far been spread across engineering leadership, our founders, and our ops team. It's high time this had a real owner.</p><p style=\"min-height:1.5em\">You'll be the first person at Close whose full-time job is protecting our customers' data and our company: GRC (security governance, risk, and compliance), internal security (identity, devices, access, vendors), incidents, and the customer-facing resources that prove we do this well. Your mandate is to build this like an engineer — automate the evidence, codify the processes, use AI aggressively. We recommend giving <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"http://grc.engineering\">grc.engineering</a> a read; this is the mentality we're hiring for.</p><p style=\"min-height:1.5em\"></p><h2><strong>You are</strong></h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>A hands-on operator, with 5+ years of building Security &amp; Trust programs.</strong> You've personally run security and compliance programs, ideally at a 50–300 person company. You’ve been the one configuring SSO, running access reviews, answering the SOC 2 auditor's questions.</p></li><li><p style=\"min-height:1.5em\"><strong>Technical enough to know how our systems work.</strong> You can reason about SSO/IAM configuration details, trace how customer data flows through third-party tools, and dig through logs (e.g., in Loki) to run down an incident yourself.</p></li><li><p style=\"min-height:1.5em\"><strong>Automation and efficiency minded.</strong> You'll happily grind through manual work when it's needed - screenshotting evidence, searching logs - but you refuse to still be doing it by hand a year later, so you automate it away with scripts, APIs, and AI.</p></li><li><p style=\"min-height:1.5em\"><strong>AI-positive.</strong> You see AI as something to help us adopt faster, not just a risk to manage. Your instinct is to find the safe path to yes and you can tell the difference between exposure and vibes.</p></li></ul><h2><strong>You will</strong></h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Run our GRC program — then automate it.</strong> Vanta day to day (controls, policies, alerts, evidence, vendor reviews), leading our SOC 2 Type 2 audits, annual risk assessments, and evaluating additional frameworks (ISO 27001, HIPAA). Wherever a recurring check, evidence pull, or list (like our GDPR subprocessors) can come from code or an API instead of by hand, make it so.</p></li><li><p style=\"min-height:1.5em\"><strong>Own how customer data moves through our stack.</strong> Audit what flows to third-party tools (and stop what shouldn't), and build a real process for deletion requests across our analytics stack.</p></li><li><p style=\"min-height:1.5em\"><strong>Be the security gate for new tools and vendors.</strong> Confirm SOC 2 status, get the DPA signed, add them in Vanta, update the subprocessor list — with a process that lets the team adopt new tools (AI especially) quickly and safely. Procurement and spend stay with finance/ops; the security and privacy review is yours.</p></li><li><p style=\"min-height:1.5em\"><strong>Make Close best-in-class at communicating trustworthiness.</strong> Own <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"http://trust.close.com\">trust.close.com</a> and our security/privacy/GDPR pages, and turn them into the place where customers' security questions can answer themselves.</p></li><li><p style=\"min-height:1.5em\"><strong>Coordinate product security audits.</strong> Run pen tests and audits of our product jointly with Engineering — vendor selection, scoping, and the artifacts we need for customers and partners (e.g., Google OAuth restricted scopes). Engineering fixes what's found; you make sure the audits happen and produce what we need.</p></li><li><p style=\"min-height:1.5em\"><strong>Investigate and clean up security incidents.</strong> When something looks off, you're the one who digs in to run it down and contain it — work that currently falls to Engineering by default.</p></li><li><p style=\"min-height:1.5em\"><strong>Own our identity and device security.</strong> SSO/IAM strategy and configuration, MDM across the fleet, the security side of onboarding/offboarding, and regular access reviews so no one keeps a key they shouldn't. You make the call on where we require SSO and what we'll pay for it.</p></li><li><p style=\"min-height:1.5em\"><strong>Run our employee security program.</strong> Training people actually remember, phishing simulations to keep us honest, and ongoing monitoring (e.g., 1Password Watchtower) with follow-through.</p></li></ul><h2><strong>What this role is not</strong></h2><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Product or application security engineering.</strong> You'll coordinate audits of our product and drive incident investigations, but you won't ship code to our product, own its architecture, or be responsible for implementing fixes — that belongs to our engineering org.</p></li><li><p style=\"min-height:1.5em\"><strong>Infrastructure.</strong> Our AWS and production infrastructure belong to our DevOps/SRE team. Where your work touches production, you drive the investigation; engineering implements what needs production access.</p></li><li><p style=\"min-height:1.5em\"><strong>Legal.</strong> Privacy policy, DPAs, and legal interpretation of GDPR/CCPA will sit with our legal function. You own the operational side and partner closely with them.</p></li><li><p style=\"min-height:1.5em\"><strong>Only IT support.</strong> You'll help with the occasional IT request — it comes with owning devices, identity, and tooling — but it's a small slice of the job, and you'll automate the routine parts. If helpdesk work is the whole of your background, this isn't the fit.</p></li></ul><h1><strong>Benefits</strong></h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable, which means we answer to our customers and play by our own rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n\n\n\nABOUT THE ROLE\n\nWe have 11k+ customers, which means we have a lot of data in our care. Earning and keeping their trust — rigorous security and privacy practices, plus the compliance and audit work that verifies it to customers — has so far been spread across engineering leadership, our founders, and our ops team. It's high time this had a real owner.\n\nYou'll be the first person at Close whose full-time job is protecting our customers' data and our company: GRC (security governance, risk, and compliance), internal security (identity, devices, access, vendors), incidents, and the customer-facing resources that prove we do this well. Your mandate is to build this like an engineer — automate the evidence, codify the processes, use AI aggressively. We recommend giving grc.engineering http://grc.engineering a read; this is the mentality we're hiring for.\n\n\n\n\nYOU ARE\n\n - A hands-on operator, with 5+ years of building Security & Trust programs. You've personally run security and compliance programs, ideally at a 50–300 person company. You’ve been the one configuring SSO, running access reviews, answering the SOC 2 auditor's questions.\n\n - Technical enough to know how our systems work. You can reason about SSO/IAM configuration details, trace how customer data flows through third-party tools, and dig through logs (e.g., in Loki) to run down an incident yourself.\n\n - Automation and efficiency minded. You'll happily grind through manual work when it's needed - screenshotting evidence, searching logs - but you refuse to still be doing it by hand a year later, so you automate it away with scripts, APIs, and AI.\n\n - AI-positive. You see AI as something to help us adopt faster, not just a risk to manage. Your instinct is to find the safe path to yes and you can tell the difference between exposure and vibes.\n\n\nYOU WILL\n\n - Run our GRC program — then automate it. Vanta day to day (controls, policies, alerts, evidence, vendor reviews), leading our SOC 2 Type 2 audits, annual risk assessments, and evaluating additional frameworks (ISO 27001, HIPAA). Wherever a recurring check, evidence pull, or list (like our GDPR subprocessors) can come from code or an API instead of by hand, make it so.\n\n - Own how customer data moves through our stack. Audit what flows to third-party tools (and stop what shouldn't), and build a real process for deletion requests across our analytics stack.\n\n - Be the security gate for new tools and vendors. Confirm SOC 2 status, get the DPA signed, add them in Vanta, update the subprocessor list — with a process that lets the team adopt new tools (AI especially) quickly and safely. Procurement and spend stay with finance/ops; the security and privacy review is yours.\n\n - Make Close best-in-class at communicating trustworthiness. Own trust.close.com http://trust.close.com and our security/privacy/GDPR pages, and turn them into the place where customers' security questions can answer themselves.\n\n - Coordinate product security audits. Run pen tests and audits of our product jointly with Engineering — vendor selection, scoping, and the artifacts we need for customers and partners (e.g., Google OAuth restricted scopes). Engineering fixes what's found; you make sure the audits happen and produce what we need.\n\n - Investigate and clean up security incidents. When something looks off, you're the one who digs in to run it down and contain it — work that currently falls to Engineering by default.\n\n - Own our identity and device security. SSO/IAM strategy and configuration, MDM across the fleet, the security side of onboarding/offboarding, and regular access reviews so no one keeps a key they shouldn't. You make the call on where we require SSO and what we'll pay for it.\n\n - Run our employee security program. Training people actually remember, phishing simulations to keep us honest, and ongoing monitoring (e.g., 1Password Watchtower) with follow-through.\n\n\nWHAT THIS ROLE IS NOT\n\n - Product or application security engineering. You'll coordinate audits of our product and drive incident investigations, but you won't ship code to our product, own its architecture, or be responsible for implementing fixes — that belongs to our engineering org.\n\n - Infrastructure. Our AWS and production infrastructure belong to our DevOps/SRE team. Where your work touches production, you drive the investigation; engineering implements what needs production access.\n\n - Legal. Privacy policy, DPAs, and legal interpretation of GDPR/CCPA will sit with our legal function. You own the operational side and partner closely with them.\n\n - Only IT support. You'll help with the occasional IT request — it comes with owning devices, identity, and tooling — but it's a small slice of the job, and you'll automate the routine parts. If helpdesk work is the whole of your background, this isn't the fit.\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}},{"id":"1e412917-5d07-4423-93c1-aa61f2c9b7b9","title":"Senior Backend Engineer – Communications (USA Only - 100% Remote)","department":"Engineering","team":"Engineering","employmentType":"FullTime","location":"USA - Remote","shouldDisplayCompensationOnJobPostings":false,"secondaryLocations":[],"publishedAt":"2026-07-16T13:20:06.561+00:00","isListed":true,"isRemote":true,"workplaceType":"Remote","address":{"postalAddress":{"addressRegion":"","addressCountry":"USA","addressLocality":""}},"jobUrl":"https://jobs.ashbyhq.com/close/1e412917-5d07-4423-93c1-aa61f2c9b7b9","applyUrl":"https://jobs.ashbyhq.com/close/1e412917-5d07-4423-93c1-aa61f2c9b7b9/application","descriptionHtml":"<h1>About Us</h1><p style=\"min-height:1.5em\">Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.</p><p style=\"min-height:1.5em\">We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.</p><div style=\"min-height:1.2em;margin-top:0;margin-bottom:0\"> </div><h1>Our Stack</h1><p style=\"min-height:1.5em\">Our backend <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://stackshare.io/close-crm/close\">tech stack</a> consists primarily of Python Flask web apps with our <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a> scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://developer.close.com/\">public API</a> that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. </p><p style=\"min-height:1.5em\">We love open sourcing our code and ideas on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio\">our GitHub</a> and on <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://making.close.com/\">The Making of Close</a>, our behind-the-scenes Product &amp; Engineering blog. Check out our open source projects like <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/socketshark\">SocketShark</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/tasktiger\">TaskTiger</a>, <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/limitlion\">LimitLion</a> and <a target=\"_blank\" rel=\"noopener noreferrer\" class=\"postings-link\" href=\"https://github.com/closeio/ciso8601\">ciso8601</a>.</p><p style=\"min-height:1.5em\">AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. </p><p style=\"min-height:1.5em\"></p><h1>About the Role</h1><p style=\"min-height:1.5em\">Close moves 7 million minutes of call recordings, millions of sales emails, and a steady volume of SMS through our pipes every month. The Communications team owns that entire surface — and the job got trickier in the last year, because real-time calling is now a real-time AI problem. When a customer tells our AI Agent <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://close.com/chloe\">Chloe</a> to make a call, everything that happens from that moment on — the live call, the conversation itself — belongs to this team.</p><p style=\"min-height:1.5em\">We're looking for someone energized by both sides of the role: the distributed-systems challenges and the AI challenges.</p><p style=\"min-height:1.5em\">One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close — this team is where you'll start, but over time you'll likely have the opportunity to work on many different projects.</p><p style=\"min-height:1.5em\">This role is open at multiple levels — Software Engineer, Senior, and Staff. You don't need to pick one when you apply: we'll calibrate together during the process.</p><p style=\"min-height:1.5em\"></p><h1>You Are</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>A seasoned engineer.</strong> Python is our backbone, but perhaps you've worked across Go, Rust, or TypeScript. You pick the right tool for the workload rather than retreating to what you know.</p></li><li><p style=\"min-height:1.5em\"><strong>Deeply experienced with email and calendar platforms.</strong> IMAP, sync protocols, calendar APIs, and the thousand edge cases of oddly configured enterprise mail servers. This is the experience that makes someone successful on this team fastest.</p></li><li><p style=\"min-height:1.5em\"><strong>Fluent in real-time and async distributed systems.</strong> WebRTC, WebSockets, queues, streaming. You've debugged a production incident where latency budgets didn't hold.</p></li><li><p style=\"min-height:1.5em\"><strong>Opinionated about AI in real-time workflows.</strong> You've built or used live transcription, voice agents, or in-the-loop AI features. You have a view on what's ready for production versus what's still a demo.</p></li><li><p style=\"min-height:1.5em\"><strong>At home in the gnarly bits.</strong> Telephony providers, codecs, retries, eventual consistency. You're drawn to the systems where edge cases actually matter. Deep Twilio or similar telephony experience is a big plus (not a requirement — but a game changer off the bat).</p></li><li><p style=\"min-height:1.5em\"><strong>Working with AI in your day-to-day.</strong> You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase.</p></li><li><p style=\"min-height:1.5em\"><strong>A builder first.</strong> You'd rather get a sloppy v1 in front of fifty customers than spend three weeks on abstractions. You ship.</p></li></ul><p style=\"min-height:1.5em\"></p><h1>You Will</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\"><strong>Overhaul how Close syncs email and calendars.</strong> Our sync engine has run for a decade; we're making a serious, ground-up investment in its performance and reliability. Millions of sales emails and calendar events, and when it breaks, customers feel it within ten minutes. You'd be in the middle of one of the biggest infrastructure rebuilds at Close.</p></li><li><p style=\"min-height:1.5em\"><strong>Take voice agents further into the call.</strong> We own the live conversation layer for Chloe's calls, and there's a lot of work ahead expanding our voice agent capabilities and infrastructure — including custom models tuned for conversational edge cases like voicemail and automated phone-tree detection (turns out \"wait for the beep\" is a hard AI problem).</p></li><li><p style=\"min-height:1.5em\"><strong>Solve inbound.</strong> So far Chloe makes calls; next she answers them. An inbound conversation can go anywhere — which raises real questions about specialized agents, a receptionist layer, and seamless call routing between them. Largely unexplored territory.</p></li><li><p style=\"min-height:1.5em\"><strong>Build native scheduling.</strong> Core calendar scheduling capabilities inside Close, plus more powerful scheduling for our agents. Various projects landing over the next 6–12 months.</p></li><li><p style=\"min-height:1.5em\"><strong>Design human orchestration of an agentic workforce.</strong> Agents create work for humans too — things to review, approve, respond to. How do we surface what's happening inside the CRM so each person engages with what actually needs them? A genuinely open product-engineering problem.</p></li><li><p style=\"min-height:1.5em\"><strong>Push connect rates and answer rates.</strong> Phone number pooling, local presence, branded calling, reputation monitoring. Real revenue impact, real telephony plumbing.</p></li><li><p style=\"min-height:1.5em\"><strong>Move our streaming and event substrate forward.</strong> Kafka, Redis, pub/sub. The plumbing the rest of the product runs on.</p></li></ul><p style=\"min-height:1.5em\"><strong>Tech you'll touch:</strong> Python, Twilio, WebRTC, WebSockets, AssemblyAI, ElevenLabs, Kafka, Redis, PostgreSQL, MongoDB.</p><p style=\"min-height:1.5em\"></p><h1>Benefits</h1><ul style=\"min-height:1.5em\"><li><p style=\"min-height:1.5em\">Compensation: Competitive pay plus an organization-wide goal-based bonus</p></li><li><p style=\"min-height:1.5em\">Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.</p></li><li><p style=\"min-height:1.5em\">80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay</p></li><li><p style=\"min-height:1.5em\">Parental Leave: Paid leave for primary and secondary caregivers</p></li><li><p style=\"min-height:1.5em\">Sabbatical: A 1-month paid sabbatical every 5 years with the team</p></li><li><p style=\"min-height:1.5em\">Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability</p></li><li><p style=\"min-height:1.5em\">401k (US residents): We match your contributions up to 6%, vested immediately</p></li></ul><p style=\"min-height:1.5em\"></p><h1>Our Values</h1><p style=\"min-height:1.5em\">Build a house you want to live in - Examine long-term thinking and action</p><p style=\"min-height:1.5em\">No BS - Practice transparency and honesty, especially when it’s hard</p><p style=\"min-height:1.5em\">Invest in each other - Build successful relationships with your coworkers and customers</p><p style=\"min-height:1.5em\">Discipline equals freedom - Keep your word to yourself and others</p><p style=\"min-height:1.5em\">Strive for greatness - Constantly challenge yourself and others</p><p style=\"min-height:1.5em\"></p><h1>Learn More</h1><p style=\"min-height:1.5em\">Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/blueprint\"><u>$0-30m Blueprint</u></a>. </p><p style=\"min-height:1.5em\">Watch <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.youtube.com/watch?v=maXKi1GN2MI\"><u>our culture video</u></a> from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! </p><p style=\"min-height:1.5em\">Explore our product. Check out a <a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://www.close.com/demo-site\">demo</a>!</p><p style=\"min-height:1.5em\"></p><h1>Our Hiring Process</h1><p style=\"min-height:1.5em\">We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.</p><p style=\"min-height:1.5em\">We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for <em>you</em> - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.</p><p style=\"min-height:1.5em\">Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.</p><p style=\"min-height:1.5em\">If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.</p>","descriptionPlain":"ABOUT US\n\nSince 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.\n\nWe're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.\n\n \n\n\nOUR STACK\n\nOur backend tech stack https://stackshare.io/close-crm/close consists primarily of Python Flask web apps with our TaskTiger https://github.com/closeio/tasktiger scheduler handling many of the backend asynchronous task processing chores. Our data stores include MongoDB, PostgreSQL, Elasticsearch, and Redis. The underlying infrastructure runs on AWS using a combination of managed services like EKS, MSK, RDS and ElastiCache and non-managed services running on EC2 instances. We have CI/CD pipelines that build Docker images, run automated tests and deploy to Kubernetes clusters. We also use these images in our local development environment allowing coding locally against all of our services. We have a well-documented public API https://developer.close.com/ that is consumed by our front-end JavaScript app as well as numerous integrations. Our infrastructure is heavily automated using Terraform, Ansible and other AWS tools. \n\nWe love open sourcing our code and ideas on our GitHub https://github.com/closeio and on The Making of Close https://making.close.com/, our behind-the-scenes Product & Engineering blog. Check out our open source projects like SocketShark https://github.com/closeio/socketshark, TaskTiger https://github.com/closeio/tasktiger, LimitLion https://github.com/closeio/limitlion and ciso8601 https://github.com/closeio/ciso8601.\n\nAI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting. \n\n\n\n\nABOUT THE ROLE\n\nClose moves 7 million minutes of call recordings, millions of sales emails, and a steady volume of SMS through our pipes every month. The Communications team owns that entire surface — and the job got trickier in the last year, because real-time calling is now a real-time AI problem. When a customer tells our AI Agent Chloe https://close.com/chloe to make a call, everything that happens from that moment on — the live call, the conversation itself — belongs to this team.\n\nWe're looking for someone energized by both sides of the role: the distributed-systems challenges and the AI challenges.\n\nOne thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close — this team is where you'll start, but over time you'll likely have the opportunity to work on many different projects.\n\nThis role is open at multiple levels — Software Engineer, Senior, and Staff. You don't need to pick one when you apply: we'll calibrate together during the process.\n\n\n\n\nYOU ARE\n\n - A seasoned engineer. Python is our backbone, but perhaps you've worked across Go, Rust, or TypeScript. You pick the right tool for the workload rather than retreating to what you know.\n\n - Deeply experienced with email and calendar platforms. IMAP, sync protocols, calendar APIs, and the thousand edge cases of oddly configured enterprise mail servers. This is the experience that makes someone successful on this team fastest.\n\n - Fluent in real-time and async distributed systems. WebRTC, WebSockets, queues, streaming. You've debugged a production incident where latency budgets didn't hold.\n\n - Opinionated about AI in real-time workflows. You've built or used live transcription, voice agents, or in-the-loop AI features. You have a view on what's ready for production versus what's still a demo.\n\n - At home in the gnarly bits. Telephony providers, codecs, retries, eventual consistency. You're drawn to the systems where edge cases actually matter. Deep Twilio or similar telephony experience is a big plus (not a requirement — but a game changer off the bat).\n\n - Working with AI in your day-to-day. You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase.\n\n - A builder first. You'd rather get a sloppy v1 in front of fifty customers than spend three weeks on abstractions. You ship.\n\n\n\n\nYOU WILL\n\n - Overhaul how Close syncs email and calendars. Our sync engine has run for a decade; we're making a serious, ground-up investment in its performance and reliability. Millions of sales emails and calendar events, and when it breaks, customers feel it within ten minutes. You'd be in the middle of one of the biggest infrastructure rebuilds at Close.\n\n - Take voice agents further into the call. We own the live conversation layer for Chloe's calls, and there's a lot of work ahead expanding our voice agent capabilities and infrastructure — including custom models tuned for conversational edge cases like voicemail and automated phone-tree detection (turns out \"wait for the beep\" is a hard AI problem).\n\n - Solve inbound. So far Chloe makes calls; next she answers them. An inbound conversation can go anywhere — which raises real questions about specialized agents, a receptionist layer, and seamless call routing between them. Largely unexplored territory.\n\n - Build native scheduling. Core calendar scheduling capabilities inside Close, plus more powerful scheduling for our agents. Various projects landing over the next 6–12 months.\n\n - Design human orchestration of an agentic workforce. Agents create work for humans too — things to review, approve, respond to. How do we surface what's happening inside the CRM so each person engages with what actually needs them? A genuinely open product-engineering problem.\n\n - Push connect rates and answer rates. Phone number pooling, local presence, branded calling, reputation monitoring. Real revenue impact, real telephony plumbing.\n\n - Move our streaming and event substrate forward. Kafka, Redis, pub/sub. The plumbing the rest of the product runs on.\n\nTech you'll touch: Python, Twilio, WebRTC, WebSockets, AssemblyAI, ElevenLabs, Kafka, Redis, PostgreSQL, MongoDB.\n\n\n\n\nBENEFITS\n\n - Compensation: Competitive pay plus an organization-wide goal-based bonus\n\n - Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.\n\n - 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay\n\n - Parental Leave: Paid leave for primary and secondary caregivers\n\n - Sabbatical: A 1-month paid sabbatical every 5 years with the team\n\n - Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability\n\n - 401k (US residents): We match your contributions up to 6%, vested immediately\n\n\n\n\nOUR VALUES\n\nBuild a house you want to live in - Examine long-term thinking and action\n\nNo BS - Practice transparency and honesty, especially when it’s hard\n\nInvest in each other - Build successful relationships with your coworkers and customers\n\nDiscipline equals freedom - Keep your word to yourself and others\n\nStrive for greatness - Constantly challenge yourself and others\n\n\n\n\nLEARN MORE\n\nListen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the $0-30m Blueprint https://www.close.com/blueprint. \n\nWatch our culture video https://www.youtube.com/watch?v=maXKi1GN2MI from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany! \n\nExplore our product. Check out a demo https://www.close.com/demo-site!\n\n\n\n\nOUR HIRING PROCESS\n\nWe ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.\n\nWe use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for you - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.\n\nRegardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.\n\nIf you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.","compensation":{"compensationTierSummary":null,"scrapeableCompensationSalarySummary":null,"compensationTiers":[],"summaryComponents":[]}}],"apiVersion":"1"}