Posted 1y ago

Senior Power Electronics Engineer

@ Helion
Everett, Washington, United States
OnsiteFull Time
Responsibilities:designing systems, testing systems, mentoring teammates
Requirements Summary:8+ years in power electronics; degree in EE or Physics; experience designing, fabricating, installing, and testing electronic systems; strong knowledge of IGBTs/MOSFETs/SCRs; proficient with LTSpice, SIMetrix/SIMPLIS, Altium, MATLAB; onsite in Everett, WA.
Technical Tools Mentioned:LTSpice, SIMetrix, SIMPLIS, Altium, MATLAB, Microsoft Office
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Job Description

What You Will Be Doing:

You will support the design, development, and optimization of the core energy management systems for Helion’s fusion generators. This includes high-voltage pulsed power delivery, energy recovery, redistribution networks, and AC grid-tie systems. In this role, you’ll drive design excellence, mentor other engineers, and contribute directly to one of the most ambitious energy challenges of our time. This is an onsite role reporting to the Senior Manager of Electrical Engineering at our Everett, WA office.

You Will:

  • Design, test, and troubleshoot high-voltage power systems that drive pulsed magnetic coils

  • Oversee procurement, construction, and commissioning of electrical systems delivering <1 ms pulses at up to 5 MA and 40 kV

  • Develop system architecture and collaborate on schematics and installation drawings

  • Lead design reviews, validating cost-effective, scalable, and reliable solutions

  • Support generator commissioning and operations with an eye toward improving future builds

  • Own engineering rigor—cost, schedule, and resource estimates—for your scope of work

  • Mentor teammates and contribute to technical growth across electrical and cross-functional engineering teams

Required Skills:

  • 8+ years experience in power electronics, solving complex electrical engineering problems from design to delivery

  • Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field

  • Proven experience designing, fabricating, installing, and testing electronic systems

  • Strong working knowledge of power switching components (IGBTs, MOSFETs, SCRs)

  • Deep understanding of engineering principles and experience driving project delivery from design through execution

  • Advanced troubleshooting skills using tools like oscilloscopes, pulse generators, spectrum analyzers, and electronic loads

  • Proficiency in LTSpice, SIMetrix/SIMPLIS, Altium, MATLAB, and Microsoft Office

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