Helion

Tech / AI / Software

AppliedAIEngineerFusionSystems

$138–182k everett, washington, united states FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Mid+ candidates.

The Brief

“Applied AI Engineer – Fusion Systems at Helion. Skills: data or knowledge modeling, technical documentation systems, software engineering, LLM APIs, LLM-powered tools. Capture & document procedures, experiments, and workflows. Structure & standardize documentation through docs-as-code practices”

What You'll Achieve.

build Helion’s internal knowledge foundation from the ground up; capturing operational procedures, experimental insights, and machine behavior; turning that into a structured, scalable system that can support AI-assisted workflows and future automation; improve consistency and clarity; laying the foundation for more advanced systems

Industry & Context.

Tech / AI / Software
Problems you'll solve

Ability to structure ambiguous information into structured systems

What They're Looking For.

Must Have

Experience with data or knowledge modeling (schemas, metadata, ontologies), Experience with technical documentation systems (e.g., Confluence/Jira or similar), software engineering skills (Python or similar), Ability to structure ambiguous information into structured systems, Experience working with domain experts to extract knowledge

Nice to Have

Experience building internal tools for engineering teams, Exposure to CAD or engineering design tools, Experience using LLM APIs (e.g., OpenAI, Claude) in production systems, Experience building LLM-powered tools (RAG, search, etc.), Exposure to large scale hardware environment

What You'll Do.

Capture & document procedures

Structure & standardize documentation through docs-as-code practices

Integrate & organize data by linking documentation with logs

Develop AI-assisted tools

Prototype automation through lightweight agents and workflows

How You'll Work.

Team & Collaboration

partnering with engineers and operators; partnering with software engineers

Full Job Description

About Helion We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. We’re looking for someone to build Helion’s internal knowledge foundation from the ground up—capturing operational procedures, experimental insights, and machine behavior—and turning that into a structured, scalable system that can support AI-assisted workflows and future automation. This role spans documentation, data structuring, and applied AI. You’ll work directly with engineers and operators to turn fragmented, implicit, and fast-changing knowledge into something durable, searchable, and actionable. This is a hands-on, applied role focused on building systems around LLMs and operational data—not training models from scratch You Will: - Capture & document procedures, experiments, and workflows by partnering with engineers and operators to turn fragmented knowledge into clear runbooks - Structure & standardize documentation through docs-as-code practices, including versioning, formatting, reviews, and defined schemas - Integrate & organize data by linking docum

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