The Technical Supply Chain Engineer will lead the specification, supplier quality qualification, manufacturing process/capability verification, technical support for RFQ, value engineering, and support procurement of critical infrastructure components, including Battery Energy Storage Systems (BESS), Low Voltage (LV) and Medium Voltage (MV) equipment, and Energy Management System (EMS) communications hardware. Translate high-level engineering requirements into detailed purchasing specifications for BESS components, switchgear (LV/MV), transformers, inverters, and EMS rack communication equipment (switches, servers, controllers).