Senior Facilities Maintenance Mechanic

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.

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 a Senior Facilities Maintenance Mechanic to tackle complex maintenance tasks across a multi-building campus, support team members, and improve the reliability and performance of the infrastructure that supports our mission. You will report to the Facilities Operations Manager and work onsite at our Everett, WA office.

• Perform preventive and corrective maintenance on HVAC/cooling units, compressed air, plumbing, water, electrical systems, and other facility utilities in the production environment

• Install, modify, and repair air drops, lines, and facility systems to support manufacturing operations.

• Troubleshoot and maintain facility-dependent equipment such as boom lifts, scissor lifts, forklifts, electric pallet jacks, and overhead cranes

• Respond to building repair issues including leaking faucets, toilets, roof leaks, and equipment leaks

• Maintain and repair access systems including roll-up doors, pedestrian doors, and automated gate systems

• Coordinate vendor work, document maintenance activities and work orders, order parts, and support facility changes such as equipment installation, relocation, and office moves while following safety procedures

• Support of fire/life safety installations and testing

• Ability to work second shift: Monday – Friday, 2pm -10:30pm

• 7+ years of experience in building, mechanical, or facility maintenance

• Strong mechanical troubleshooting and repair skills, including use of diagnostic tools

• Knowledge of LOTO (Lockout/Tagout) procedures and OSHA safety compliance

• Skilled at reading and interpreting technical drawings, manuals, and schematics

• Experienced operating motorized lift equipment (e.g., forklifts, scissor/boom lifts)

• Comfortable working at heights and using fall protection equipment

• Physical ability to squat, reach, climb, and lift up to 50 pounds

• High school diploma or equivalent required; technical certifications in HVAC or related trades are a plus