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Salary: USD 145,000 - 192,000 / annual
Redwood Materials, founded by Tesla co-founder JB Straubel in 2017, is North America's largest lithium-ion battery recycler and has deployed the world's largest second-life battery project. The company recovers and refines critical minerals from end-of-life batteries and delivers energy solutions to AI data centers using proprietary in-house engineered architecture.
As Senior Electrical Hardware Test Engineer for Energy Storage, you will validate high-voltage power electronics at the core of Redwood's energy storage systems. You'll design and execute validation tests on components and assemblies operating at 400–2000VDC and 480–800VAC, working directly from schematics, Altium layouts, and datasheets to understand switching topologies, gate drive, isolation, protection, and thermal behavior.
Key responsibilities include:
- Design, set up, and execute validation tests on high-voltage power electronics components and assemblies
- Read and work directly from schematics, Altium layouts, and datasheets to understand circuit behavior and inform test design
- Debug and diagnose hardware hands-on — probe circuits, isolate faults, and drive root cause investigations to the component level
- Design, fabricate, and source custom PCBAs to support component-level characterization and test needs
- Specify and build supporting test infrastructure spanning electrical, mechanical, and software domains, with emphasis on electrical scope
- Develop and maintain test automation and data analysis tools using Python
- Collaborate with cross-functional teams (design, reliability, and abuse engineers) to generate FMEAs and test plans; analyze complex test data and drive design and process enhancements
You'll work at the bench with oscilloscopes, probes, and lab instrumentation, turning complex data into design and process improvements that ship. When something fails, you'll probe the circuit, isolate the fault, and drive root cause to the component level.
**Requirements:**
- Master's degree in Electrical Engineering, Mechatronics, or related field
- 5+ years of technical experience in test engineering, hardware validation, or power electronics development
- Hands-on experience with high-voltage systems (400–2000VDC and 480–800VAC)
- Proficiency with Altium or similar EDA tools; fluency reading schematics, layouts, and component datasheets
- Comfort at the bench with oscilloscopes, probes, and general lab instrumentation
- Working knowledge of power conversion — switching topologies, gate drive, isolation, protection, and thermals
- Demonstrated experience with root cause and failure analysis — tracing a failure to a component or mechanism, not just documenting the symptom
- Proficiency in object-oriented programming, Python preferred
- Excellent communication and interpersonal skills; ability to engage effectively with stakeholders at all organizational levels, including executives
- A get-it-done attitude; no job is too big or too small
