Conduct supplier surveillance at vendor facilities (pre-qualification, periodic, and for-cause) to verify compliance with contracts, specs, drawings, ITPs, codes, and Tesla quality requirements for electrical and instrumentation scope such as MCCs, switchgear, transformers, panelboards, control panels, PLCs/DCS, junction boxes, cable/tray assemblies, analyzers, transmitters, control valves, and related I&E skids/assemblies. Review and validate vendor documentation packages, including ITPs, material certifications, nameplate/datasheet compliance, wiring diagrams, schematics, panel layouts, inspection/test records, calibration certificates, FAT procedures and results, software/configuration records (as applicable), and equipment data books/O&Ms; hold release when documentation is incomplete or nonconforming.