Principal Power Electronics Engineer

PRINCIPAL POWER ELECTRONICS ENGINEERSolid State Transformer Division • Full-Time • Hardware EngineeringDEPARTMENTPower ElectronicsREPORTS TOHead of EngineeringEXPERIENCE5–10+ YearsBACKGROUNDEV / Industrial Power About the RoleWe 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.What You’ll DoPower Conversion Architecture & Circuit DesignEvaluate and select appropriate power conversion topologies for solid state transformer architectures based on voltage ratio, switching frequency, efficiency, isolation, and system constraintsUnderstand topology tradeoffs at a deep level, including complexity, component stress, control difficulty, EMI behavior, and thermal implicationsPerform loss analysis across semiconductors, magnetics, and passive components to optimize efficiency across load and temperature rangesSize 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 effectsResonant Networks, Gate Drive & Switching PerformanceDesign and tune resonant and soft-switching power stages, including LLC, CLLC, DAB, and related architecturesOptimize impedance and parasitic behavior to maintain ZVS/ZCS margins, reduce switching losses, and improve real-world robustnessDesign gate drive circuits for fast-switching power devices, including isolation strategy, dead time, protection, and switching stabilityCharacterize and mitigate issues such as gate oscillation, Miller coupling, cross-conduction, and device overstress through both simulation and hardware validationPCB Layout, EMI & Hardware ImplementationLay out high-power PCBs with close attention to current loops, parasitic inductance, thermal paths, creepage and clearance, and manufacturabilityMake stackup, copper, plane, and via strategy decisions with a clear understanding of how layout affects impedance, EMI, and thermal performanceDesign for EMI and EMC from the start, including filtering, grounding strategy, return paths, common-mode behavior, and pre-compliance readinessWork with contract manufacturers on DFM/DFA, testability, assembly considerations, and production-intent implementationSimulation, Validation & Bring-UpUse 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 buildBuild analytical models alongside simulations and use both to make sound engineering decisionsPrototype, bring up, debug, and validate power boards independently using oscilloscopes, probes, power analyzers, LCR meters, impedance analyzers, and related lab equipmentDevelop and execute test plans that prove the design meets performance targets under realistic operating conditions, not just on a good bench daySystem Awareness & Engineering JudgmentIncorporate real packaging and integration constraints such as busbars, module-level clearances, thermal interfaces, and connector strategy into the design processCatch problems upstream, flag missing constraints, and ask the questions that need to be asked before a board is laid out or releasedWork from a concept and a BOM to produce hardware that is not only functional, but robust, manufacturable, and ready to scaleWhat We’re Looking ForRequired5+ years of hands-on power electronics hardware design experienceA track record of designing, laying out, building, and testing real power boards yourselfStrong working knowledge of multiple high-power converter topologies and the tradeoffs between themDirect experience with gate drive design for SiC or Si switching devices in systems above 1 kWDemonstrated ability to tune resonant networks and passive components to measured resultsProficiency with at least one simulation environment such as LTspice, PSIM, PLECS, Simscape, or equivalentGenuine understanding of EMI, including how switching behavior, layout, filtering, and parasitics interactComfort running your own bench validation and debugging with standard power electronics lab equipmentAbility to do the engineering that was not asked for: identify hidden risks, surface constraints, and use judgment to fill the gapsHighly PreferredBackground in EV powertrain, traction inverter, OBC, or industrial power hardwareExperience with high-frequency magnetic design, including planar, foil, or interleaved structures and high-frequency loss considerationsFamiliarity with high-voltage module integration, busbar or buswork design, and packaging constraintsKnowledge of solid state transformer architectures or multi-port power conversion systemsProficiency in Altium Designer; Cadence Allegro or equivalent also acceptableExperience with EMC pre-compliance and formal certification testingResearch background in power electronics, provided you can translate it into real hardware decisions and real manufacturing constraintsYou 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 environmentKnow what the layout should look like before you open the EDA toolHave been the person on the team who catches the thing nobody else caught and can explain why it mattersAre as comfortable doing hand calculations as running simulations, and know which one to trust when they disagreeThink manufacturability is a design constraint, not someone else’s problemCan work from an incomplete starting point and use sound judgment to turn it into a production-intent designTools & TechnologiesCandidates should have meaningful hands-on experience with tools and technologies across areas such as:EDA and layout tools such as Altium, Allegro, or KiCadSimulation tools such as LTspice, PSIM, PLECS, Simscape, or MATLAB/SimulinkStandard power electronics lab equipment including oscilloscopes, power analyzers, thermal cameras, LCR meters, impedance analyzers, and EMI test equipmentRelevant HV, safety, creepage/clearance, and EMC design standardsWhat We OfferCompetitive salary + meaningful equityFull benefits: health + dentalWell-equipped power electronics labSmall team with direct technical ownershipFlexible hybrid work arrangementHow to ApplyPlease 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.