Senior Process Engineer, Fuel Cycle

On-site$182,000 – $214,000
United States

Job Description, Responsibilities & Requirements

About the Position

Senior Process Engineer, Fuel Cycle

We are seeking a Senior Process Engineer, Fuel Cycle to join our innovative team at Helion, based in Everett, WA. This role is pivotal in designing the world's first continuous fusion fuel cycle, contributing to the future of clean energy.

Responsibilities

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

Requirements

  • Bachelor's degree in Chemical or Mechanical 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

We Offer

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

About the Company

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 $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.

Compensation Range: $182K - $214K

Helion is an equal opportunity employer and values 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.

Job Details

Company name:
Helion
Salary:
$182,000 – $214,000
Location:
United States
Employment Type:
Full-time
Work Mode:
On-site
Posted on TheJob:
Jul 27, 2026
Last checked:
Jul 27, 2026
Posted on the source:
May 18, 2026
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