Principal Power Electronics Engineer

Stormentum Inc•Austin, TX

10d

About The Position

As a Principal Power Electronics Engineer at Stormentum, you will lead hardware design and development for next-generation modular power conversion technology serving applications including hyperscale data centers, microgrids, and bidirectional EV charging. You will own high-power, high-voltage conversion-stage design for systems operating at 480 VAC three-phase and 800–1000 VDC, and guide engineering decisions on topology selection, magnetics, power-stage architecture, schematics, PCB layout, component selection, and hardware optimization. You will take converter designs from concept and prototype validation through qualification and high-volume production, while setting technical direction and mentoring engineers.

Requirements

Master's degree in Electrical Engineering or a similar field; a PhD is a plus.
Extensive experience in end-to-end power electronics product development from concept through commercialization.
Knowledge of hardware design and controls for MMC and CHB power electronics topologies.
At least 10 years of experience designing and delivering high-voltage, high-power power electronics converters, including at least two full project cycles bringing distinct products to market.
Deep hands-on experience with wide-bandgap semiconductor devices (SiC, GaN), including personal ownership of schematic and PCB design.
Experience with circuit modeling, simulation, and PCB design tools, including SPICE, MATLAB/Simulink, PLECS, Altium Designer, and HIL platforms such as Typhoon HIL, OPAL-RT, or dSPACE.
Hands-on laboratory experience with oscilloscopes, power analyzers, electronic loads, and grid simulators.
Strong working knowledge of grid-interconnection and energy-storage standards relevant to power conversion hardware, including UL 1741 SA/SB, IEEE 1547, and UL 9540, and ability to design to those standards; prior ownership of completed certification is not required.
Experience with processes similar to those outlined in UL 1998, UL 991, and IEC 61508.
Experience designing to IEC 62477-1, including insulation coordination, creepage, and clearance for high-voltage hardware.

Nice To Haves

Familiarity with Modular Multilevel Converters (MMCs) or solid-state transformers.
Direct experience owning a product through UL 1741 SA/SB, IEEE 1547, or UL 9540 certification end-to-end, including engagement with a third-party certification lab.
Familiarity with UL 62368-1, UL 1973, and NFPA 855.
Familiarity with international grid standards, including CSA C22.2 No. 107.1 and EN 50549.
Experience in volume manufacturing environments, including design for cost optimization, yield improvement, and supplier engagement.
Background in grid-tied inverter systems, energy storage, utility-scale power conversion, or data center power systems.

Responsibilities

Lead the selection, design, and development of power conversion stages for Stormentum's Modular Power Electronics Conversion platform, including topology selection, magnetics, and power-stage architecture.
Own schematic capture for high-power, high-voltage converter hardware and provide technical direction and review for PCB layout.
Select and qualify power semiconductor devices, including SiC, GaN, and IGBT, and guide component trade-offs across efficiency, thermal performance, and cost.
Develop gate-drive and protection circuitry, including fault detection for Si, SiC, and GaN devices.
Lead EMI/EMC design and compliance activities for grid-connected power electronics hardware.
Own hardware development from concept through high-volume production, including design for manufacturability, design for test, and compliance testing.
Lead laboratory bring-up, testing, and debugging of prototype and production hardware.
Set technical direction for power electronics design decisions, lead design reviews, and mentor engineers across the hardware team.
Collaborate with controls, firmware, and systems architecture teams to ensure power-stage designs meet system performance and certification requirements.