Lead Power Electronics HW Engineer - BESS

About the role

Jabil is looking for a Lead Power Electronics Hardware Engineer to lead power electronics design, integration and validation for Battery Energy Storage System (BESS) products, including PCS/inverters, DC/DC converters, auxiliary power, protection interfaces, high-voltage DC distribution and related power conversion subsystems. The role works with system architects, suppliers, thermal, mechanical, test, manufacturing, quality, certification and customer teams to deliver BESS platforms for commercial, industrial, utility-scale, microgrid and critical power applications. The position is based at Jabil's Huangpu office in Guangzhou.

Key responsibilities

• Lead BESS power electronics engineering, including PCS/inverter integration, DC/DC conversion, auxiliary power, HVDC distribution and protection interfaces.
• Define electrical requirements for PCS, BMS/EMS interfaces, switchgear, transformers, meters, protection devices, grounding and site-level power interfaces.
• Review power electronics designs, including semiconductors, gate drives, magnetics, DC-link capacitors, sensing, protection circuits, EMI/EMC, thermal constraints and high-voltage safety.
• Evaluate PCS/inverter performance, including efficiency, power rating, charge/discharge capability, reactive power, derating, protection coordination and grid compliance.
• Develop specifications, interface requirements, validation expectations, design review checklists, reliability requirements and release readiness criteria.
• Support simulation and validation of converter performance, losses, efficiency, harmonics, thermal loading, power quality and reliability.
• Partner with suppliers, test labs, customers and cross-functional teams to improve performance, manufacturability, cost, reliability and launch readiness.
• Prepare and present technical specifications, design reviews, test reports, risk assessments, root-cause analyses and recommendations.
• Mentor less experienced engineers and work in a stage-gate process (PLCM).

Required profile

• Bachelor's degree in Electrical Engineering, Power Electronics, Power Systems, Energy Systems or a related field; Master's or Ph.D. preferred.
• P04 / Lead Engineer level: typically 5+ years of hands-on experience in power electronics design, PCS/inverter engineering, converter validation, BESS integration or grid-connected systems.
• Strong English communication skills and experience working in a global team.
• Professional certifications, advanced power electronics training, grid code experience, electrical safety training, Six Sigma, DFSS, NAFEMS or equivalent are a plus.

Required skills

• Power electronics topologies and power-stage design (IGBT, SiC MOSFET, gate drivers, magnetics, EMI/EMC, thermal constraints, HV safety)
• BESS architecture (battery racks, BMS, PCS, EMS, SCADA, transformers, switchgear, grid interconnection)
• Simulation tools such as PLECS, PSIM, LTspice, PSpice, MATLAB, ETAP, DIgSILENT, Altium or OrCAD
• Grid codes, power quality, harmonics, grounding, protection coordination, fault ride-through and anti-islanding
• Standards awareness: UL 9540, UL 1741, UL 1973, NFPA 855, IEC 62477, IEC 61000, IEEE 1547, NEC
• Interpretation of single-line diagrams, schematics, wiring diagrams, interface control documents and protection settings