harbingermotors · Garden Grove, CA
About Harbinger Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger’s best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first-of-its-kind EV platform to support the growing demand for medium-duty EVs and Hybrids. Harbinger: Familiar Form, Revolutionary Foundation. Job Overview As a key technical leader on the Electrical Engineering team, the Power Electronics Engineer will drive the architecture, design, validation, integration, and testing of High Voltage (HV) components and systems for Harbinger’s vehicles. You will own the end-to-end lifecycle of critical power systems, bridging the gap between high-level architectural strategy and hands-on laboratory testing. We are industry-agnostic for this role; whether your background is in automotive, aerospace, grid storage, renewables, or heavy industry, the core requirement is a proven track record of delivering high-power (100kW+ to Megawatt scale) power electronics projects from concept through validation. We are open to hiring at the Sr. or Principal level. What You’ll Do: Architect and Lead: Drive the architecture, component selection, analysis, and design of high-power (100kW to MW class) power electronics aimed at high performance and cost optimization, including on-board chargers, DC-DC converters, and traction inverters. End-to-End Testing: Lead the testing and bring-up of power electronics components, seamlessly integrating them with powertrain components and the broader charging ecosystem. Advanced PCB Design: Oversee and execute the design of complex circuit boards (PCBs), optimizing for low-cost, high-reliability, and high-performance based on IPC standards. Reliability & Analysis: Lead DFMEA, worst-case circuit analysis (WCCA), thermal analysis, and other critical system-level evaluations. Validation Leadership: Direct testing and validation efforts on high voltage compo…
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