Senior Process Engineer, Fuel Cycle

Number of employees

340

Everett, WA, United States

Posted on: 2025-10-09

Category: renewables

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Employment type:

Full time

Experience required:

Senior

Salary

Salary not provided

About the company:

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 and 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). Now, we're turning up operations for Polaris, and working towards delivering the world's first fusion power plant. 

More than ever, it's a pivotal time to join us and have the opportunity to solve real challenges to create a better energy future. You will see first-hand how we value urgency, rigor, ownership, and hard truths, knowing it will take each to do what no one has before. Joining us, you will push the boundaries of what's possible and transform humanity for the better - because the world can't wait.

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’ll Be Doing

 

You will be at the forefront of designing the world's first continuous fusion fuel cycle – an opportunity to redefine the future of clean energy for the modern world. You will lead process design and implementation for major systems in our fuel cycle, taking systems from concept to commissioning. You'll work with engineers, scientists, and technicians across the company, with a focus on scaling up and integrating these systems into our commercial fusion platform. You will report to the Fuel Cycle Manager and work onsite at our Everett, WA office.

You Will

  • Own creation-to-integration engineering for major components of the fuel cycle, including system process design, procurement, installation, and commissioning
  • Perform detailed design for process equipment such as columns, reactors, membranes, heaters, pumps, and piping under varied conditions (ambient, cryogenic, and vacuum)
  • Use process simulation tools to support design development, integration, and case studies
  • Produce important deliverables including PFDs, P&IDs, H&MBs, HAZOPs, and sizing calculations
  • Independently lead projects across engineering disciplines (mechanical, electrical, controls, and operations) to deliver fully integrated process designs
  • Lead high-level design reviews to validate solutions and incorporate feedback into systems
  • Mentor fuel cycle engineers and work cross-functionally to build technical capabilities across Helion

Required Skills

  • Bachelor's degree in Chemical, Mechanical, or Nuclear Engineering or equivalent experience in chemical process design or development
  • 8+ years of experience delivering full-scope chemical engineering projects, including managing technical deliverables and schedules
  • Experience taking engineering ideas from abstract concepts to physical reality, demonstrated by delivering first-of-a-kind hardware solutions
  • Experience applying first-principles thinking by leading design and troubleshooting in complex engineering systems
  • Experience performing detailed process equipment sizing calculations including chemical, fluid, thermal, mechanical, and relief systems
  • Experience leading and working on multidisciplinary engineering projects

 

 

#LI-Onsite #LI-TM1

 

Total Compensation and Benefits

Helion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.

This is an exempt salaried role.

Annual Base Pay
$160,000$200,000 USD

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.

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