Principle Power Electronics HW Engineer

At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.   Principle Power Electronics HW Engineer Build your career with Jabil! We challenge and empower you to make the most of your talents while working with outstanding colleagues from diverse backgrounds who share your drive and passion to make Jabil grow!

The lead power electronics HW engineer will 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. This role will translate system requirements into robust hardware architecture, electrical interface requirements, supplier specifications, and validation plans to support safe, reliable, efficient, and compliant BESS operation. The engineer will work closely with system architects, suppliers, thermal, mechanical, test, manufacturing, quality, certification, and customer teams to deliver high-performance BESS platforms for commercial, industrial, utility-scale, microgrid, and critical power applications. Location: This role will be based at Jabil's Huangpu office in Guangzhou, Guangdong Province, China. Essential Duties and Responsibilities Lead BESS power electronics engineering activities, including PCS/inverter integration, DC/DC conversion, auxiliary power, high-voltage DC distribution, protection interfaces, and critical power architecture. Define electrical requirements for PCS, BMS/EMS interfaces, switchgear, transformers, meters, protection devices, grounding, and site-level power interfaces. Review power electronics designs, including semiconductor selection, 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 capability, derating behavior, protection coordination, and grid compliance needs. Develop specifications, interface requirements, validation expectations, design review checklists, reliability requirements, and release readiness criteria. Support modeling, simulation, and validation activities for converter performance, losses, efficiency, harmonics, thermal loading, power quality, reliability, and field issue resolution. Partner with suppliers, test labs, customers, and cross-functional teams to improve PCS/BESS performance, manufacturability, cost, reliability, and launch readiness. Prepare and present technical specifications, design reviews, test reports, risk assessments, root-cause analyses, and recommendations to stakeholders and leadership. May perform other duties and responsibilities as assigned. Job qualifications Technical knowledge & skills Strong understanding of power electronics topologies and critical power conversion technologies, including AC/DC, DC/DC, DC/AC converters, PCS/inverters, bidirectional converters, auxiliary power supplies, and high-voltage DC systems for BESS applications. Deep knowledge of power-stage design, including IGBT, SiC MOSFET, gate drivers, snubbers, DC-link capacitors, magnetics, sensing, isolation, protection circuits, EMI/EMC, thermal constraints, and high-voltage safety. Strong understanding of BESS architecture, including battery racks, BMS, PCS, EMS, SCADA, transformers, switchgear, protection devices, metering, site controllers, and grid interconnection interfaces. Know