Senior Mechanical Engineer

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 Soft Bank 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, 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.

What You Will Be Doing:

We are hiring a Senior Mechanical Engineer to own hardware designs for Helion's fusion generator prototypes. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report directly to our Senior Manager of Engineering at our Everett, WA office.

You Will:

• Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements
• Learn from historical engineering approaches, design novel hardware, and test your solutions
• Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)
• Perform analysis with tools like ANSYS and hold design reviews to gather feedback and iterate to a fully functioning system
• Learn from experts to expand your engineering skillset and domain knowledge
• Work hands-on alongside experienced technicians to implement your hardware designs
• Troubleshoot hardware issues as they arise on integrated fusion generators

Required Skills:

• 8+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)
• Experience applying engineering first-principles and method-based thinking to challenging problems
• Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)
• Advanced experience with CAD software (e.g. NX, Solidworks)
• Moderate experience with FEA software (e.g. ANSYS, FEMAP)
• Moderate experience with GD&T and generating engineering drawings per ASME Y14.5

#LI-Onsite #LI-MT1

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

$150,000 - $200,000 USD

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)
• 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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