Performed cold/hot commissioning and functional verification on Battery Energy Storage Systems (BESS). Performed electrical and controls troubleshooting on BESS subsystems to diagnose faults and restore operation Interpreted electrical schematics and wiring diagrams to identify issues at the component and subsystem level. Coordinated with cross-functional teams (electrical, civil, safety) to meet commissioning milestones Ensured all work was completed safely, efficiently, and within the allocated timeframe.