Senior/Principal Power Electronics Engineer in , United States
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- 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- power conversion hardware from concept through commercialization.
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.
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