H3X Technologies

Staff Power Electronics Engineer

Louisville, Colorado · Staff+

Sponsorship not specified$140k-$235kDetected 188 days ago

MATLABSupply ChainSolidWorksANSYSPCB DesignAltiumEMI/EMCElectrical EngineeringPower ElectronicsControlsSimulinkCollaborationMentoring

About the role

You will be a key part of the core engineering team and will have a direct impact on the trajectory of the company.

Own the power electronics hardware for high power density integrated motor drives, from requirements → concept → prototype → production readiness.
Lead schematic design and high-density PCB layout (Altium), including stack-up, creepage/clearance strategy, high-current power paths, and gate-drive layout.
Design and optimize wide-bandgap power stages (SiC and/or GaN): switching behavior, gate drive, protection, sensing, isolation, and thermal/packaging constraints.
Develop and validate designs using circuit and system simulation (LTSpice / PLECS / MATLAB/Simulink or equivalent).
Drive EMI/EMC design and debug: grounding strategy, filtering (CMCs, Y-caps, etc.), shielding approaches, and layout practices
partner with test teams through pre-compliance and compliance efforts.
Build and execute hardware test and characterization plans (DVP&R): DPT, thermal, fault response, transient behavior (and more) across the operating envelope.
Be the "go-to" for debugging: efficiently isolate root cause across electrical/mechanical/firmware interfaces and implement corrective actions (design changes, manufacturing improvements, etc).
Partner with Supply Chain / Manufacturing on DFM/DFT, PCB fab/assembly coordination, inverter BOM ownership, and sustaining support through prototype builds.
Collaborate with motor control team to ensure clean interfaces (sensing, protection, comms, timing), and support integrated system bring-up in the lab.

5+ years professional experience in power electronics hardware, with scope appropriate for Senior or Staff level ownership.
M.S./Ph.D. in Electrical Engineering or equivalent experience
Ability to write clear technical documentation (requirements, schematics/layout notes, test plans, validation reports) and communicate crisply across disciplines.
Deep hands-on experience with high-density

Prior experience taking an inverter/power electronics product from concept to production, ideally in aerospace, automotive, or similarly rigorous environments.
Experience with EMI/EMC standards and compliance workflows (e.g., DO-160G or similar), including design-for-compliance and lab troubleshooting.
Mechanical integration awareness: packaging constraints, thermal interfaces, and collaboration with mechanical teams (Solidworks proficiency is a plus).
Relocation package
Monthly company events
H3X Technologies is a U.S.-based manufacturer of electric motors for sustainable aviation, marine, industrial, and defense applications.
This high performance is enabled by novel scalable core technology and proprietary manufacturing processes for motor stacking, winding, and assembly.

Proficiency in at least two of: Altium, LTSpice/PLECS, MATLAB/Simulink, and comfort learning new tools quickly.
Preferred Qualifications
Experience with parasitics extraction / field solvers (e.g., Ansys Q3D) and correlating models to bench measurements.
Demonstrated track record of mentoring engineers and raising the bar on hardware quality, review rigor, and lab practices.
Benefits & Compensation

Employee equity incentive plan
$140,000 - $235,000 annual salary
Outdoor Recreation Reimbursement ($900 annual maximum)
Relocation package
Monthly company events
H3X Technologies is a U.S.-based manufacturer of electric motors for sustainable aviation, marine, industrial, and defense applications.

At H3X https://www.h3x.tech/, we are building the most advanced electric motors in the world for sustainable aviation, marine, industrial, and defense applications.

This listing is sourced directly from H3X Technologies's careers page and normalized into a canonical job model.