Power Electronics Engineer for Motor Drives & Pulsed Loads

GRAM; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

GRAM located in El Segundo seeks an electrical engineer to own power conversion, distribution, switching, protection, and measurement from architecture through released hardware. The role covers motor-drive electronics, electro-permanent-magnet drivers, and robust thermal and EMI design for compact actuators and pulsed loads.

You will design around measured duty cycles, transients, and fault cases, ensuring validated performance and traceable margins across the integrated machine.

Qualifications

• Bachelor's degree in electrical engineering or equivalent practical experience developing power-electronic hardware.
• Released and brought up a switching converter, inverter, motor drive, pulsed-power circuit, battery-power stage, or comparable product using controlled schematics, layout, bill of materials, and revision history.
• Demonstrated command of MOSFET or GaN switching, gate-drive design, current sensing, protection, feedback stability, magnetics, loss calculation, thermal design, and power-PCB layout.
• Built an instrumented validation setup and measured efficiency, switching waveforms, transient response, electromagnetic behavior, protection timing, and thermal margin across a defined operating envelope.
• Closed a hardware failure that prevented operation or violated a defined limit by reproducing it, identifying the physical or electrical root cause, implementing a design change, and demonstrating the correction through repeated test.

Responsibilities

• Convert actuator, magnetic, compute, sensing, and mission duty cycles into power budgets, transient requirements, efficiency targets, thermal limits, protection thresholds, and validation plans.
• Design and release switching power converters, motor-drive or pulsed-load stages, gate drives, sensing circuits, protection networks, power distribution, and supporting multilayer printed circuit boards.
• Model switching behavior, conduction loss, magnetics, parasitics, control-loop stability, fault energy, and junction temperatures using first-principles calculations and circuit simulation.
• Bring up hardware with oscilloscopes, differential and current probes, electronic loads, power analyzers, thermal instrumentation, and automated acquisition under normal and injected-fault conditions.
• Diagnose failures involving overcurrent, shoot-through, saturation, ringing, grounding, electromagnetic interference, thermal runaway, brownout, or interactions among loads and controls.
• Define drive and power interfaces with sourced actuator modules, electro-permanent magnets, embedded software, batteries or external supplies, mechanical packaging, and machine-level safety systems.
• Carry designs through layout review, supplier fabrication, assembly, environmental test, manufacturing test, nonconformance closure, and verified revision release.

Skills

MOSFET switching

GaN switching

Gate-drive design

Current sensing

Protection

Feedback stability

Magnetics

Thermal design

Power PCB layout

Education

Bachelor's degree in electrical engineering

Job description

GRAM located in El Segundo seeks an electrical engineer to own power conversion, distribution, switching, protection, and measurement from architecture through released hardware. The role covers motor-drive electronics, electro-permanent-magnet drivers, and robust thermal and EMI design for compact actuators and pulsed loads.

You will design around measured duty cycles, transients, and fault cases, ensuring validated performance and traceable margins across the integrated machine.