Senior Test Engineer

About the Company

Helion is 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. Since 2013, Helion has raised $1.5 billion to propel its fusion technology forward.

Responsibilities

• Design and deliver electrical test systems for PCBA and high-voltage assemblies, including test rack architecture and fixture design
• Design test fixture PCBAs, owning schematic capture, layout, review, and bring-up
• Build, wire, debug, and maintain complete test racks and fixtures, including power distribution and safety interlocks
• Develop and maintain data acquisition and control tools using Python or PLC-based systems
• Write and maintain test procedures, calibration standards, and test limits
• Analyze test data to generate FPY, yield, and performance metrics
• Work hands-on with technicians to standardize safe, repeatable test execution
• Support deployment and sustainment of test infrastructure at Contract Manufacturers

Requirements

• Bachelor’s degree in electrical engineering, Mechatronics, or a related field
• 5+ years of experience developing electrical or electronic test systems in R&D or production
• Experience designing PCBAs for test fixtures (schematic capture, layout, review, and bring-up)
• Proficiency with ECAD tools such as Altium Designer
• Hands-on experience building and debugging test racks, fixtures, harnesses, and control systems
• Working experience with Python or PLC-based systems for automation and data acquisition
• Proficiency using standard lab instrumentation (oscilloscopes, DMMs, power supplies, etc.)
• Strong understanding of electrical safety principles and lab best practices

Benefits

• Medical, Dental, and Vision plans
• 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 (up to 16 weeks)
• Annual wellness stipend