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# Senior Test Engineer

- **Company:** Helion LLC
- **Location:** Everett, WA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Altium Designer, Software Debugging, Electronic Design Automation, Python (Programming Language), Schematic Capture, Test Data, Test Execution Engine, Hardware Testing
- **Published:** November 11, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-test-engineer-everett-wa--615455ef-7c76-425e-bba1-8e4a5c8b9d22

## About the Role

Testing, Electricity, Power Plant, Plasma, Venture Capital, Prototyping, Electronics, Testing, Technical/Engineering Design, Printed Circuit Board Assembly (PCBA), * Bachelor's degree in electrical engineering, Mechatronics, or a related field

 * 5+ years of experience developing and supporting electrical or electronic test systems in R&D or production environments
 * Demonstrated experience designing PCBAs for test fixtures or test systems, including schematic capture, layout, review, and bring-up
 * Proficiency with ECAD tools such as Altium Designer or equivalent
 * Strong hands-on experience designing, building, wiring, and debugging test racks, fixtures, harnesses, and control systems
 * Working experience with Python or PLC-based systems for test sequencing, automation, and data acquisition
 * Proficiency using standard lab instrumentation including oscilloscopes, DMMs, power supplies, electronic loads, and spectrum analyzers
 * Strong understanding of electrical safety principles and lab best practices
 * Strong analytical skills with experience interpreting FPY, yield, or performance metrics
 * Proven ability to collaborate across design engineering, production, and technician teams and communicate clearly at multiple levels

## Description

As a Test Engineer at Helion, you will be responsible for designing, building, and sustaining the electrical test systems that validate PCBAs, power electronics, and high-voltage assemblies used across our fusion generators. You will operate at the intersection of design engineering and production, ensuring that test infrastructure is robust, repeatable, and safe for hand-on execution by technicians.

Your work will directly enable faster hardware iteration, improved first-pass yield, and reliable delivery of mission-critical electrical systems that support Helion's fusion generators and pulsed-power architecture. This is a hands-on, lab-based role reporting to the Production Manager and working closely with Design Engineers, R&D Engineers, and Technicians/Supervisors. This is onsite role located at our Everett, WA office.

You Will:

 * Design and deliver electrical test systems for PCBA and high-voltage assemblies, including test rack architecture, fixture design, instrumentation selection, electrical integration, and supporting automation
 * Design test fixture PCBAs used within test racks and fixturing, owning schematic capture, layout, review, and bring-up to enable functional validation and diagnostics of production hardware
 * Build, wire, debug, and maintain complete test racks and fixtures, including power distribution, safety interlocks, signal routing, and data acquisition integration
 * Develop and maintain data acquisition and control tools using Python or PLC-based systems to support sequencing, measurement, and reporting
 * Write and maintain test procedures, calibration standards, and test limits in collaboration with design engineering and production leadership
 * Analyze test data to generate FPY, yield, and performance metrics, and partner with design teams to refine thresholds and improve robustness
 * Work hands-on with technicians and supervisors to standardize safe, repeatable test execution and continuously improve test system scalability and maintainability
 * Support deployment and sustainment of test infrastructure at Contract Manufacturers, including validation of test hardware and associated electronics