BESS Testing & Validation Lead

Role Summary

The BESS Testing & Validation Lead owns the end-to-end verification and validation (V&V;) of utility-scale Battery Energy Storage Systems. This role covers test strategy, validation planning, lab setup, prototype testing, safety validation (UL 9540A, fire/thermal), system-level performance testing, and cross-functional coordination. The engineer ensures all BESS hardware, firmware, and integrated systems meet design, reliability, safety, and certification requirements before release.

Key Responsibilities

Define the overall test & validation strategy of Battery modules, packs, racks, and containers
PCS/Inverters, MS, EMS, and firmware, HVAC & thermal management systems
Mechanical and safety systems (fire detection, suppression, ventilation)
Develop Validation Master Plans (VMP), DVP&R;, test cases, and test matrices.
Lead testing of Electrical function (power performance, charge/discharge, SoC/SoH validation),BMS functional testing, Thermal system performance (HVAC, coolant loops, airflow,



heat rejection),Communication & controls (Modbus, CAN, SCADA, EMS),Safety systems (shutdowns, interlocks, alarms)
Validate system behaviour during Grid events (voltage/frequency excursions),Transients, ramp rates, and energetic power commands, Fault injection tests (cell faults, temperature faults, communication failures)
Lead internal and external testing for UL 9540 / UL 9540A thermal runaway validation,UL 1973 battery pack testing, IEC 62933 functional and safety testing, Fire, venting, suppression, and gas concentration tests
Coordinate with 3rd-party certification agencies and accredited labs.
Plan and execute Vibration, shock, drop, seismic tests, Thermal cycling, humidity, salt-mist, corrosion tests, Ingress protection tests (IP55/IP65),Long-duration cycle and aging tests, Evaluate system degradation, lifetime performance, and component reliability.
Define test lab requirements (electrical, safety, HVAC, fire suppression).
Procure,

📌 Lead - Product Testing and Validation (Bengaluru)
🏢 Larsen and Toubro
📍 Bengaluru