System Test Engineer - Battery Systems

Work Arrangement This role is categorized as hybrid. The successful candidate is expected to report to Milford or Warren, Michigan three times per week, at minimum. The Role We are looking for a highly qualified Battery Systems Lab System Test Engineer to shape and influence the evolution of High Voltage Energy Management (HVEM) System test space on our progressive Vehicle Mechatronics Embedded Controls (VMEC) team, with primary focus on the Battery Systems Lab (BSL) and Software Defined Vehicle 2.0 (SDV 2.0) architecture. HVEM covers multiple sub‑systems related to HV Rechargeable Energy Storage Solutions (RESS) and the HV bus for our electrified vehicle portfolio at General Motors. This role is the Directly Responsible Individual (DRI) for RESS / pack‑specific system robustness tests on RESS benches and is a core member of the System Test Engineer (STE) team whose mission is to provide end‑to‑end HVEM system test coverage across CoSIM, HIL, CHIL, and RESS benches. What You'll Do Own the RESS/BSL system test scope as DRI for pack robustness and long‑duration operation, including thermal behavior, degradation, and high‑stress use cases that require physical packs and RESS benches. Operate as part of an integrated HVEM System Test team with CoSIM and HIL STEs, ensuring RESS/BSL test coverage meaningfully contributes to system‑level regression health and TFRP readiness. Champion built‑in quality, test automation, and continuous improvement in the Battery Systems Lab, working across disciplines to turn system requirements into actionable test strategies and clear evidence for decision makers. Design and implement BSL system test content – develop bench procedures and automated scripts with clear pass/fail criteria, timings, and sequences that exercise RESS/pack robustness and performance. Plan and operate RESS benches and regression campaigns – manage test feasibility within facility/asset constraints, schedule regression and robustness runs aligned to TFRP and program milestones, and deliver bench‑based evidence and risk visibility for BSC‑relevant criteria. Contribute to shared HVEM System Test outcomes – support a single backlog and unified test catalog across CoSIM, HIL, CHIL, and BSL, driving requirement traceability, stable regression suites, and shift‑left validation. Drive the bench‑to‑virtual feedback loop and integration – turn recurring RESS bench issues into CoSIM/HIL scenarios where possible, identify and escalate integration issues, and collaborate with RESS HW/BMS teams (including planning for aged packs). Lead BSL‑focused continuous improvement – own environment readiness touchpoints, cross‑functional working cadences, process and automation/LLM enhancements, and clear communication of test status and results to technical teams and leadership. Your Skills & Abilities (Required Qualifications) Bachelor's degree in Electrical, Mechanical, or related Engineering discipline with focus on energy storage, controls, or power electronics. 2+ years of experience in battery system testing or validation, with a focus on RESS / pack, module, or BMS behavior in lab, bench, or vehicle environments. Practical, hands‑on experience in a Battery Systems Lab or similar HV test lab, including operation of RESS benches, HV test equipment, and thermal / environmental chambers under established safety procedures. Experience developing and executing test procedures for pack/RESS robustness and performance (e.g., thermal cycling, life / durability runs, long‑duration energy management, high‑stress operating conditions) and documenting clear pass/fail criteria. Working proficiency with battery and powertrain test equipment and tools, such as battery cyclers, power supplies, electronic loads, DAQ systems, and CAN/Ethernet logging tools (e.g., Vehicle Spy, CANalyzer). Basic scripting or programming experience (e.g., Python or similar) to automate test sequences, data collection, or post‑processing and to support regression‑style lab runs. Working knowledge of Battery System Controls / BMS functions and how calibrations and software changes impact pack behavior at the bench. Ability to interpret system and software requirements and translate them into concrete bench test cases and expected results. Demonstrated strength in data analysis and reporting – distilling bench results into clear summaries, plots, and recommendations for both technical teams and leadership. Preferred Qualifications Master's degree or PhD in Electrical, Mechanical, or related Engineering discipline with focus on energy storage, controls, or power electronics. 5+ years of experience in battery system testing or validation, with a focus on RESS / pack, module, or BMS behavior in lab, bench, or vehicle environments. Deep hands‑on experience with RESS benches, including thermal and aging tests, abuse‑lite or robustness testing, and direct support of BSE metrics. Experience planning and executing milestone‑based lab campaigns tied to program / TFRP timing, including coordination of assets, hardware changes, and test readiness across teams. Experience with vehicle and bench validation at component or subsystem level, ideally including RESS/pack or power electronics, and integrating bench findings into system‑or vehicle‑level test strategies. Strong oral and written communication skills with the ability to influence cross‑functional teams and drive alignment on test scope, risk, and priorities. Demonstrated ability to work effectively within multi‑disciplinary teams (System, SW, Calibration, HW, Validation, Program Mgmt) and to operate with minimal direction in complex, ambiguous problem spaces. Benefits GM offers a variety of health and wellbeing benefit programs. Benefit options include medical, dental, vision, Health Savings Account, Flexible Spending Accounts, retirement savings plan, sickness and accident benefits, life insurance, paid vacation — holidays, tuition assistance programs, employee assistance program, GM vehicle discounts and more. Relocation This job may be eligible for relocation benefits. Accommodations General Motors offers opportunities to all job seekers including individuals with disabilities. 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