Senior/Principal Power Electronics Engineer

Medium Voltage Power Conversion Location: Sullivan, MO / Orange County, CA Path: Full-Time Infinity Miles is seeking a Senior Power Electronics Engineer to lead the design and development of advanced medium-voltage power conversion systems for commercial deployment. We are developing next-generation medium-voltage Solid-State Transformer (SST) technology for AI data centers, renewable energy systems, battery energy storage, EV charging infrastructure, and grid modernization. Position Overview The Senior/Principal Power Electronics Engineer will be responsible for the architecture, design, analysis, testing, and validation of high-power converter systems. This role will drive the development of next-generation power conversion hardware from concept through commercialization. Preferred Qualifications M.S. or Ph.D. in Electrical Engineering, Power Electronics, or related field 5+ years of industry experience in power electronics design and development Strong understanding of high-power converter topologies and control principles Experience with SiC-based power conversion systems Experience designing converters in the tens of kilowatts to multi-megawatt range Familiarity with medium-voltage systems and insulation requirements Knowledge of thermal management, EMI/EMC, electrical safety, and reliability considerations Hands-on experience with laboratory testing, debugging, and prototype validation Familiarity with UL, IEC, IEEE, and grid-interconnection standards Responsibilities Design and develop high-power isolated and non-isolated converter systems Develop advanced converter topologies including Cascaded H-Bridge, Multi-Level Converters, Dual Active Bridge (DAB), Resonant Converters, and related architectures Design power stages utilizing SiC devices and advanced gate drive technologies Perform system-level trade studies balancing efficiency, power density, thermal performance, reliability, manufacturability, and cost Develop converter protection strategies including fault detection, isolation, and system safety functions Perform simulation and analysis using PLECS, LTspice, MATLAB/Simulink, PSIM, or equivalent tools Lead laboratory testing, troubleshooting, and performance validation of prototype systems Collaborate with controls, magnetics, mechanical, manufacturing, and test engineering teams Mentor junior engineers and provide technical leadership within the organization Help commercialize one of the industry's most advanced Solid-State Transformer platforms with significant technical leadership and career growth opportunities. #J-18808-Ljbffr Infinity Miles Inc.