Staff Power Electronics Engineer, Energy Storage

Job description

Job responsibilities

• Design high-voltage (800V – 25kVdc, 480–800Vac) and high-power (10kW–500kW) converters tailored for utility-scale BESS and industrial infrastructure.
• Conduct comprehensive topology comparison and trade-off analyses evaluating efficiency, power density, cost, and manufacturability.
• Perform power-stage component sizing and Si/SiC MOSFET selection based on loss modeling and thermal management.
• Design robust gate driver circuits and dedicated gate driver power supplies to ensure safe, high-frequency switching operations.
• Lead the design, modeling, and specification of custom magnetic components, including transformers and inductors utilizing Litz-wire or PCB-winding architectures.
• Architect the low-voltage (LV) subsystem, including auxiliary power supplies, sensing circuitry (voltage/current/temperature), and hardware-level protection.
• Design and optimize EMI filters, including differential-mode and common-mode inductors, X/Y-caps, and damping elements.
• Drive high-voltage, high-power PCB/PCBA layout design, ensuring clearance/creepage rules and signal integrity under high-noise environments.

Job requirements

• MS or PhD in Electrical Engineering, with a focus on power electronics.
• 5-7 years of experience in electrical engineering, with a strong focus on power conversion or energy storage products, ideally for mass production.
• Hands-on experience in high-voltage (up to 1.5kVdc and 800Vac) hardware design. Experience in high voltage (up to 25kVdc, 34.5kVac) for SST is a plus.
• Experience with power semiconductor selection, gate drive design, and hardware protection circuits.
• Deep understanding of power electronics topologies and fundamentals (AC/DC, DC/DC).
• Proficiency with circuit simulation, FEA simulation, and CAD tools (e.g., Simulink, LTspice, Ansys Maxwell/Q3D, Altium Designer).
• Demonstrated ability to perform detailed layout of high-power, noise-sensitive PCBs in Altium or equivalent CAD software.
• Proficiency with lab equipment, including oscilloscopes, impedance analyzers, network analyzers, and signal generators.