GK

Power Electronics Engineer

Accepting applications

Green Key Resources · Austin, TX

Full-Time Mid_senior GaNI2CSPISPICEVerilog
Posted
2d ago
Category
Design
Experience
Mid_senior
Country
United States
We are looking for a Power Electronics Engineer with deep expertise in power conversion hardware, PCB design, and electromechanical systems. You will design and build the high-performance power electronics that drive autonomous platforms—from schematic capture and board layout through bring-up, validation, and field integration—working closely with firmware, mechanical, and systems teams.

Power Electronics Design
Design and develop power conversion circuits—including switch-mode DC/DC converters (buck, boost, flyback, PSFB), gate driver stages, and motor drive circuits—using SiFET and GaN FET technology for high-efficiency, high-reliability applications.
Run SPICE-based simulations (LTspice, PSIM, or SIMPLIS) for power stage design, transient analysis, and control loop modeling; perform thermal analysis to validate designs before fabrication.
Collaborate with firmware engineers to define and validate digital control interfaces for power and motor drive systems.
PCB Design & Hardware Development
Own schematic capture and multi-layer PCB layout in Altium Designer for power and mixed-signal boards, with rigorous attention to power loop minimization, EMC, thermal management, and signal integrity.
Work with mechanical teams to ensure proper thermal and structural integration of power electronics into electromechanical systems.
Hardware Bring-Up, Validation & Test
Lead hardware bring-up from power-on through closed-loop validation; characterize switching waveforms, debug gate driver behavior, and verify power stage performance using oscilloscopes, power analyzers, and logic analyzers.
Lead EMI/EMC debugging and design to meet radiated and conducted emissions requirements; support qualification testing against applicable military or commercial standards.
Maintain thorough design documentation including schematics, layout rationale, simulation results, BOMs, and test protocols.

Required Qualifications
Bachelor's or Master's degree in Electrical Engineering or a closely related field.
3+ years of hands-on experience designing switch-mode power conversion circuits, including topology selection, magnetics design, and gate driver implementation for SiFET or GaN-based systems.
Demonstrated experience with BLDC or PMSM motor drive hardware—including phase current sensing, gate driver selection, and protection circuitry—from schematic through hardware bring-up.
Technical Skills
Strong command of Altium Designer (or comparable EDA tool) for multi-layer mixed-signal and power PCB design.
Solid understanding of EMC design practices, power loop layout, thermal considerations, and high-current trace routing.
Proficiency with SPICE-based simulation tools (LTspice, PSIM, SIMPLIS, or equivalent) for power circuit validation and control loop analysis.
Hands-on EMI/EMC debugging experience with the ability to identify root causes of conducted and radiated emissions and implement effective design fixes.
Skilled in the use of oscilloscopes, power analyzers, logic analyzers, and bench power supplies for hardware characterization, bring-up, and debug.
Preferred Qualifications
Experience with digitally controlled power converters using DSP or microcontroller platforms (e.g., TI C2000, STM32), including implementation of digital compensators or current sharing algorithms in Verilog or C.
Familiarity with magnetics design, including custom inductors, transformer specification, core selection, and winding layout.
Thermal management experience, including heat sink selection, thermal interface material specification, and steady-state thermal simulation.
Background in high-reliability, defense, aerospace, or space electronics where design verification, documentation, and environmental qualification are critical.
Experience taking a power electronics design through full EMI/EMC certification (Class A or Class B radiated and conducted emissions).
Knowledge of embedded communication and control protocols, including CAN, SPI, I2C, and UART.

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