Power Electronics Hardware Engineer

Role: Power Electronics Hardware EngineerProject Type: Safety Adjacent industrial/mobile controllerLocation:East Bay, CA| Engagement: ContractSeniority: Senior (hands-on design owner)Pay Range$80-120 / hourMissionOwn the design and delivery of a ruggedized control module that:Powers and controls actuators, fans, and sensorsPowers and communicates with downstream electronicsProvides a safety compliant comms pathway between a quad skid and pack systemIntegrates 1G Single Pair Ethernet (1000BASE T1), CAN FD, and MCU/MPU computeMust Have Skills (Hard Requirements)Embedded power/hardware ownershipDesigned end to end power trees: 48V input 24V & 5V bucks3V3/1V8/1V1 LDOsLoad control using motor drivers and high side drivers (HSDs) with diagnosticsIndustrial/automotive networkingCAN FD bring-up, bus diagnostics, and fault handling (bit rate setup, termination, CRC/fault confinement basics)1000BASET1 (Single Pair Ethernet) with PHY selection, magnetics/CM choke usage, and layout for controlled impedanceExperience integrating an Ethernet switch (BGA ~196 pin, 0.8 mm pitch) in a multiport designCompute & SoC integrationMCU (LQFP) for real-time control and safety supervisionMPU SOM (SMARC carrier) integration (power sequencing, boot, peripherals, Linux/RTOS bring-up coordination)MCU?MPU comms via SPI/UART/CAN?FD (bonus: iso SPI, I²C, JTAG bring-up)Schematic/PCB & layout for EMC4–8 layer boards with high current paths, star grounds, split analog/digital, impedance controlled routing for GbE T1 & high speed SPIDFM with BGA fan out, power/thermal design, and test point strategySafety & reliability mindsetHardware watchdogs, brownout/UVLO/OVP, reverse polarity, surge/transient protectionGraceful degradation: MCU retains control if MPU/Ethernet failsNice to Have SkillsAutomotive/industrial standards exposure (ISO13485/14971/26262, IEC61508, CISPR/EMC pre comp)Experience with galvanic isolation for CAN/ISOSPIThermal analysis and enclosure level EMI design for motor loadsLinux driver bring up on SOMs, or boot sequencing with PMICsProduction test fixture design (JTAG/SWD, boundary scan, automated functional test)ResponsibilitiesArchitect and document the hardware system (power, compute, comms, IO)Select major components: MCU, MPU SOM, Ethernet switch & PHYs, buck/LDO, HSDs, motor drivers, ADCs/DACs, IO expandersOwn schematics, layout guidance, and design reviews; coordinate with PCB layoutBring up and validate: power sequencing, comms buses (CAN FD, 1000BASE T1), motor/fan control, sensor IOImplement safety critical behaviors under MCU control; design for graceful degradationCreate production ready documentation: BOM, test plans, power budgets, interface control docsSTART ASAP! #J-18808-Ljbffr