Lead Thermal Simulation Engineer

About the role

Jabil is looking for a Lead Thermal Simulation Engineer to lead thermal and CFD simulation activities for Battery Energy Storage System (BESS) products and other large similar products. The role develops and runs thermal simulation strategies to evaluate temperature distribution, airflow, heat transfer, pressure drop, hotspot risk, environmental performance, derating risk and long-term reliability, and works closely with mechanical design, system architect, electrical, structural, safety, test, manufacturing, quality and customer teams. The position is based at Jabil's Huangpu office in Guangzhou.

Key responsibilities

• Lead thermal and CFD simulation for BESS products such as battery cabinets, containerized enclosures, racks, modules, power electronics, HVAC interfaces, airflow paths and cooling architectures.
• Develop and run steady-state and transient thermal models covering heat transfer, airflow, pressure drop, hotspots, environmental extremes, high-power operation and derating risk.
• Evaluate thermal risks such as battery heat generation, temperature uniformity, HVAC capacity, fan performance, filtration, cable/busbar heating, solar loading, altitude and ambient temperature.
• Partner with cross-functional teams on requirements, acceptance criteria, validation plans and design improvements.
• Correlate simulation results with physical test data, field data and customer operating profiles, and give technical recommendations.
• Prepare and present simulation reports, thermal margin assessments, risk evaluations, design trade studies and recommendations to stakeholders, customers and leadership.
• Establish simulation best practices, templates, workflows, material libraries and validation methods, and mentor simulation engineers.

Required profile

• Bachelor's degree in Mechanical, Thermal, Aerospace, Energy, Chemical or Engineering Mechanics, or a related field; Master's or Ph.D. preferred.
• Minimum 5+ years of hands-on thermal simulation, CFD, thermal management, electronics cooling, battery thermal analysis or HVAC-integrated enclosure design experience.
• Global team experience, strong English, and ability to work in a stage-gate process (PLCM).
• Professional certification, advanced CFD/thermal training, Six Sigma, DFSS, NAFEMS, HVAC or battery thermal management training is a plus.

Required skills

• CFD and thermal simulation tools such as ANSYS Fluent, ANSYS Icepak, Star-CCM+, FloTHERM, 6SigmaET, COMSOL or equivalents.
• CAD tools such as SolidWorks, Creo, NX or CATIA.
• Knowledge of BESS thermal architecture and battery safety requirements (UL 9540, UL 9540A, NFPA 855, IEC/UL, IP/NEMA).