Principal Power Electronics Engineer

POWER ELECTRONICS ENGINEER

Solid State Transformer Division • Full-Time • Hardware Engineering

DEPARTMENT

Power Electronics

REPORTS TO

Head of Engineering

EXPERIENCE

5–10 Years

BACKGROUND

EV / Industrial Power

We are building the future of electrical infrastructure through high-frequency, high-power conversion systems that eliminate the limitations of traditional line-frequency transformers.

We need a power electronics engineer who thinks in schematics and wakes up thinking about switching losses, gate charge, and thermal headroom. We have a concept, a BOM, and a clear picture of where we are going. What we need is the engineer who can close the loop: someone who can take a strong technical foundation and turn it into real, production-intent hardware.

If you have ever been handed a concept and immediately started rethinking the gate drive network, questioning the resonant tank values, and asking whether the creepage strategy will actually hold up in the real world, this is likely your kind of role.

Power Conversion Architecture & Circuit Design

• Evaluate and select appropriate power conversion topologies for solid state transformer architectures based on voltage ratio, switching frequency, efficiency, isolation, and system constraints
• Understand topology tradeoffs at a deep level, including complexity, component stress, control difficulty, EMI behavior, and thermal implications
• Perform loss analysis across semiconductors, magnetics, and passive components to optimize efficiency across load and temperature ranges
• Size and select SiC or Si switching devices for high-frequency, high-voltage power stages with a strong understanding of switching behavior, parasitics, gate charge, and reverse recovery effects

• Design and tune resonant and soft-switching power stages, including LLC, CLLC, DAB, and related architectures
• Optimize impedance and parasitic behavior to maintain ZVS/ZCS margins, reduce switching losses, and improve real-world robustness
• Design gate drive circuits for fast-switching power devices, including isolation strategy, dead time, protection, and switching stability
• Characterize and mitigate issues such as gate oscillation, Miller coupling, cross-conduction, and device overstress through both simulation and hardware validation

• Lay out high-power PCBs with close attention to current loops, parasitic inductance, thermal paths, creepage and clearance, and manufacturability
• Make stackup, copper, plane, and via strategy decisions with a clear understanding of how layout affects impedance, EMI, and thermal performance
• Design for EMI and EMC from the start, including filtering, grounding strategy, return paths, common-mode behavior, and pre-compliance readiness
• Work with contract manufacturers on DFM/DFA, testability, assembly considerations, and production-intent implementation

• Use circuit simulation tools such as LTspice, PSIM, PLECS, or equivalent to validate switching waveforms, stress levels, resonant behavior, and control-related design choices before hardware build
• Build analytical models alongside simulations and use both to make sound engineering decisions
• Prototype, bring up, debug, and validate power boards independently using oscilloscopes, probes, power analyzers, LCR meters, impedance analyzers, and related lab equipment
• Develop and execute test plans that prove the design meets performance targets under realistic operating conditions, not just on a good bench day

• Incorporate real packaging and integration constraints such as busbars, module-level clearances, thermal interfaces, and connector strategy into the design process
• Catch problems upstream, flag missing constraints, and ask the questions that need to be asked before a board is laid out or released
• Work from a concept and a BOM to produce hardware that is not only functional, but robust, manufacturable, and ready to scale

• 5 years of hands-on power electronics hardware design experience
• A track record of designing, laying out, building, and testing real power boards yourself
• Strong working knowledge of multiple high-power converter topologies and the tradeoffs between them
• Direct experience with gate drive design for SiC or Si switching devices in systems above 1 kW
• Demonstrated ability to tune resonant networks and passive components to measured results
• Proficiency with at least one simulation environment such as LTspice, PSIM, PLECS, Simscape, or equivalent
• Genuine understanding of EMI, including how switching behavior, layout, filtering, and parasitics interact
• Comfort running your own bench validation and debugging with standard power electronics lab equipment
• Ability to do the engineering that was not asked for: identify hidden risks, surface constraints, and use judgment to fill the gaps

• Background in EV powertrain, traction inverter, OBC, or industrial power hardware
• Experience with high-frequency magnetic design, including planar, foil, or interleaved structures and high-frequency loss considerations
• Familiarity with high-voltage module integration, busbar or buswork design, and packaging constraints
• Knowledge of solid state transformer architectures or multi-port power conversion systems
• Proficiency in Altium Designer; Cadence Allegro or equivalent also acceptable
• Experience with EMC pre-compliance and formal certification testing
• Research background in power electronics, provided you can translate it into real hardware decisions and real manufacturing constraints

You Might Be a Great Fit If You…

• Look at a BOM and immediately start asking about the resonant network, gate drive isolation, and whether the EMI approach matches the actual impedance environment
• Know what the layout should look like before you open the EDA tool
• Have been the person on the team who catches the thing nobody else caught and can explain why it matters
• Are as comfortable doing hand calculations as running simulations, and know which one to trust when they disagree
• Think manufacturability is a design constraint, not someone else’s problem
• Can work from an incomplete starting point and use sound judgment to turn it into a production-intent design

Candidates should have meaningful hands-on experience with tools and technologies across areas such as:

• EDA and layout tools such as Altium, Allegro, or KiCad
• Simulation tools such as LTspice, PSIM, PLECS, Simscape, or MATLAB/Simulink
• Standard power electronics lab equipment including oscilloscopes, power analyzers, thermal cameras, LCR meters, impedance analyzers, and EMI test equipment
• Relevant HV, safety, creepage/clearance, and EMC design standards

• Competitive salary meaningful equity
• Full benefits: health dental
• Well-equipped power electronics lab
• Small team with direct technical ownership
• Flexible hybrid work arrangement

Please include examples of power boards you have designed and built. Show us your layouts, simulation results, or test data. We want to see the hardware, not just the title.