Knowledge Systems Engineer - Fusion Systems

About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.What You Will Be Doing:We’re looking for someone to build Helion’s internal knowledge foundation from the ground up—capturing operational procedures, experimental insights, and machine behavior—and turning that into a structured, scalable system that can support AI-assisted workflows and future automation.This role spans documentation, data structuring, and applied AI. You’ll work directly with engineers and operators to turn fragmented, implicit, and fast-changing knowledge into something durable, searchable, and actionable. This is a hands-on, applied role focused on building systems around LLMs and operational data—not training models from scratch. This is an onsite role that reports directly to the Research and Development Manager at our Everett, WA office.You Will:Capture & document procedures, experiments, and workflows by partnering with engineers and operators to turn fragmented knowledge into clear runbooksStructure & standardize documentation through docs-as-code practices, including versioning, formatting, reviews, and defined schemasIntegrate & organize data by linking documentation with logs, configs, and analysis outputs to improve consistency and clarityDevelop AI-assisted tools by partnering with software engineers to inform LLM-powered solutionsPrototype automation through lightweight agents and workflows (e.g., run summaries, anomaly investigation) while laying the foundation for more advanced systemsRequired Skills:Experience with data or knowledge modeling (schemas, metadata, ontologies)Experience with technical documentation systems (e.g., Confluence/Jira or similar)Strong software engineering skills (Python or similar)Ability to structure ambiguous information into structured systemsExperience working with domain experts to extract knowledgePreferred Skills:Experience building internal tools for engineering teamsExposure to CAD or engineering design toolsExperience using LLM APIs (e.g., OpenAI, Claude) in production systemsExperience building LLM-powered tools (RAG, search, etc.)Exposure to large scale hardware environment #LI-Onsite #LI-IB1BenefitsOur total compensation package includes benefits, including but not limited to:Medical, Dental, and Vision plans for employees and their families 31 Days of PTO (21 vacation days and 10 sick days) 10 Paid holidays, plus company-wide winter break Up to 5% employer 401(k) match Short term disability, long term disability, and life insurance Paid parental leave and support (up to 16 weeks) Annual wellness stipendHelion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.Compensation Range: $175K - $241KLocationEverett, WAEmployment TypeFull timeLocation TypeOn-siteDepartmentResearch & Development Compensation$175K – $241K