Essential Job Functions: Lead the design and development of protection and control (P&C) systems for transmission, distribution, and renewable energy projects, including AC/DC schematics, single-line diagrams, wiring diagrams, relay logic diagrams, relay panel layouts, and communication network diagrams. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.