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 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, 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:

In this role, you’ll ensure that critical mechanical, electrical, and facility systems remain operational and safe to support Helion’s fusion development activities. We’re looking for an experienced Senior Maintenance Mechanic to take the lead on complex maintenance tasks, support team members, and improve the reliability and performance of the infrastructure that supports our mission. This is an onsite role based at our Everett, WA facility, reporting to the Maintenance & Services Manager.

You Will:

• Perform preventive and corrective maintenance on HVAC, plumbing, and electrical systems, along with a range of facility and utility systems found in a complex production environment
• Diagnose and repair issues across production and facility-dependent equipment, including boom lifts, scissor lifts, forklifts, and overhead cranes
• Maintain and repair access systems, including roll-up doors, pedestrian doors, and automated gate systems
• Coordinate and oversee vendor work to meet safety, security, and quality standards
• Document maintenance activities, including work orders, parts usage, and system performance
• Support continuous improvement initiatives and mentor junior technicians

Required Skills:

• 5+ years of experience in building, mechanical, or facility maintenance, including at least 2 years in a senior or lead role
• Demonstrated mechanical troubleshooting, repair techniques, and use of diagnostic tools
• Knowledge of LOTO (Lockout/Tagout) procedures and OSHA safety compliance
• Ability to read and interpret technical drawings, manuals, and schematics
• Skilled in operating motorized lift equipment (e.g., forklifts, scissor lifts, boom lifts)
• Comfortable working at heights and using fall protection equipment
• High school diploma or equivalent required; technical certifications in HVAC or related trades are a plus

LI-Onsite #LI-MM1

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 a non-exempt hourly role.

Hourly Pay Rate

$52—$74 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.