Helion · 12 hours ago
Senior Mechanical Engineer, Diagnostics
Everett, WA
Full-time
Onsite
Senior Level
$182K/yr - $214K/yr
5+ years expHelion is a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant. As a Diagnostics Engineer, you will advance the design and development of next-generation diagnostic instrumentation that supports the company's mission to achieve fusion energy.
EnergyEnvironmental EngineeringRenewable Energy
Responsibilities
Collaborate with interdisciplinary teams that include scientists, engineers, and product designers, to develop novel mechanical solutions for experimental diagnostic devices
Own the mechanical design of diagnostic systems: define and refine requirements, troubleshoot hardware issues, and drive continuous improvements
Design, prototype, and iterate mechanical components and assemblies using CAD tools (e.g., NX, SolidWorks); perform structural and thermal analysis (e.g., ANSYS); and lead design reviews
Conduct experimental testing, collect and analyze performance data, and support root-cause analyses of mechanical failures or performance deviations
Apply lessons from historical designs, develop innovative hardware, and integrate your solutions into ongoing fusion research experiments
Continuously expand your skills and domain knowledge by learning from Helion’s technical experts and engaging with cutting-edge science and engineering
Qualification
Required
Advanced degree in Mechanical Engineering with experience in plasma, laser, aero, or similar specialty
5+ years of hands-on industry experience with diagnostic equipment, laboratory instrumentation, precision sensing, or similar technologies
5+ years of experience with CAD software (e.g. NX, SolidWorks) and FEA software (e.g. ANSYS, FEMAP)
Experience applying engineering first-principles and method-based thinking to challenging first-of-a-kind designs
Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)
Benefits
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
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.
201-500 employees
H1B Sponsorship
Helion has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2023 (2)
2022 (1)
2021 (1)
Funding
Current Stage
Late StageTotal Funding
$1.04BKey Investors
Nucor CorporationSam AltmanDustin Moskovitz
2025-01-28Series F· $425M
2023-09-27Corporate Round· $35M
2021-11-05Series E· $500M
Leadership Team
David Kirtley
Co-Founder & Chief Executive Officer
Chris Pihl
Co-Founder & CTO
Recent News
2025-12-24
Crunchbase News
2025-12-18
Crunchbase News
2025-12-17
Company data provided by crunchbase