Senior AI Applications Engineer at Helion Energy

We are Helion, a fusion power company headquartered in Everett, Washington. Our mission is to build the world’s first fusion power plant and deliver unlimited clean electricity. Since our founding in 2013 we have raised more than $600 million from investors including Sam Altman, Mithril, and Capricorn Investment Group. Our most recent prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius. We are now advancing Polaris, the first machine designed to demonstrate electricity from fusion, and we are expanding the software capabilities that will support this next phase of work.

Key outcomes

• Design, build, and maintain a suite of internal-facing AI applications that leverage ChatGPT and the OpenAI API to support engineering, research, test, and nuclear teams.
• Partner with cross-functional technical groups to identify operational challenges and translate them into practical AI-driven solutions.
• Lead the full software development lifecycle for these applications, including coding, testing, debugging, and performance optimization for speed and scale.
• Establish and evolve a software development strategy that incorporates emerging AI technologies and drives continuous innovation across the organization.
• Operate effectively in a fast-paced environment where processes are still being defined, delivering reliable tools that accelerate progress toward fusion electricity.

Requirements

• Seven or more years of relevant engineering experience at technology or product-driven companies.
• Strong proficiency with JavaScript, React, and related web technologies.
• Strong proficiency with Python.
• Professional working proficiency in English.
• Willingness to work on-site at our Everett, Washington office on a full-time basis.

Compensation

The salary range for this position is $160,000 to $210,000 per year. Total compensation also includes equity and a comprehensive benefits package that covers medical, dental, and vision plans for employees and their families, 31 days of paid time off, 13 paid holidays plus a company-wide winter break, up to a 5 percent employer 401(k) match, short-term and long-term disability insurance, life insurance, up to 16 weeks of paid parental leave, and an annual wellness stipend.

How to apply

We welcome applications from candidates who are excited to contribute to the development of fusion energy. Please submit your application through our careers portal, and a member of our team will contact you if your background aligns with our current needs.