Director of Experimental Science

helion· Science
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📍 Everett, WAFullTime💰 USD 289K–315K/yr

About this role

About Helion

We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.

Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.

This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.

What You Will Be Doing:

We are looking for a Director of Experimental Science to lead a team of scientists and engineers in the design, implementation, and testing of devices and technologies aimed at enhancing fusion plasma performance. You will report directly to our Director of Plasma and Nuclear Science.

You Will:

  • Build, grow, and lead a team of scientists and engineers who will apply their knowledge and expertise in plasma physics to optimize Helion’s fusion devices

  • Provide clear and concise summaries of experimental campaign results, enabling stakeholders to make informed decisions and adjustments as needed

  • Work with Helion’s leadership to establish organizational roadmap, goals, and balance risks for the team that align with our strategy and take full ownership of accomplishing these goals

  • Oversee projects specific to experimental plasma science such as E&M probes; plasma pre-ionization; plasma-material interaction; device design and requirements; full device data collection, analysis and interpretation in coordination with other teams

  • Drive schedule ownership and optimization by team members to accelerate milestones

  • Drive experimental plasma and fusion deliverables to completion in collaboration with Mechanical Engineers, Electrical Engineers, R&D, and Production teams.

Required Skills:

  • Advanced degree in physics, or a related physical science discipline with a minimum of 10 years of scientific research experience and at least 5 years of experience managing a team of scientists or engineers in a research, development, or technology setting

  • Demonstrated experience building and leading multidisciplinary teams

  • Experience managing complex inter-departmental projects (including schedule ownership)

  • Demonstrated experience in applied physics, building and designing hardware

Benefits

Our total compensation package includes benefits, including but not limited to:

• Medical, Dental, and Vision plans for employees and their families
• 31 Days of PTO (21 vacation days and 10 sick days)
• 10 Paid holidays, plus company-wide winter break
• Up to 5% employer 401(k) match
• Short term disability, long term disability, and life insurance
• Paid parental leave and support (up to 16 weeks)
• Annual wellness stipend

Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.

Frequently Asked Questions

What is the salary for the Director of Experimental Science role at helion?
The listed salary for this Director of Experimental Science position at helion is USD 289K–315K/yr. This is an FullTime role.
Where is the Director of Experimental Science position at helion located?
This Director of Experimental Science role at helion is based in Everett, WA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Director of Experimental Science role at helion full-time or part-time?
This is listed as a FullTime position. It is posted as a Director of Experimental Science role in the Science department at helion.
Which team or department does the Director of Experimental Science at helion belong to?
This Director of Experimental Science position is part of the Science department at helion. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Director of Experimental Science position at helion?
Click the "Apply Now" button on this page. You will be redirected to helion's official application portal hosted on ashby where you can submit your application directly.
When was the Director of Experimental Science job at helion posted?
This Director of Experimental Science position at helion was posted on May 17, 2026. Apply as soon as possible — early applications are often reviewed first.
Director of Experimental Science
helion · 💰 USD 289K–315K/yr
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You'll be redirected to helion's official application page on Ashby ATS.