Lead Diagnostic Engineer

About Giga Giga is building gigawatts of AI data centers to hasten a future of intelligence and abundance. We build data centers fast and at scale by combining the capabilities of an equipment supplier, engineering firm, general contractor, and real estate developer under one roof. Our team moves quickly and thinks practically. If you're ready to make an impact in an industry that matters, we're looking for people like you. Why join Giga The Pace: We're building at a speed most companies talk about but never actually operate at. If you've been bored somewhere else, you won't be here. The Impact : Every person at Giga touches the work that matters. No layers, no waiting for approval chains. You'll see your fingerprints on what we ship. The Team: A team of operators defining the future of AI infrastructure. We recruit A-players from the most innovative companies in the world, and they choose Giga because the work here means more. The Moment : AI doesn't run without power, and that's us. Giga is the picks and shovels behind the AI revolution. This industry is about to explode, and you'll be in the room where it's already happening. What you'll do Giga Energy designs and manufactures switchboards, transformers, and modular data center power infrastructure for the AI and mission-critical data center market. We're building our field service function from the ground up to support commissioning, startup, and post-installation service for our transformer product line as it scales into utility, industrial, and hyperscale data center deployments. As a Field Service Engineer – Transformers, you'll be the technical face of Giga Energy at customer sites — commissioning new units, troubleshooting in-service equipment, and building the field service playbook as one of our first dedicated transformer FSEs. Where you'll work This role is a a heavy travel position. This candidate must be open to 50-70% travel expectations. Base salary + travel per diem, competitive with market (benchmarked against ABB/Siemens/Powell field service compensation bands) On-call rotation for emergency customer support Company vehicle or travel allowance, per diem, and standard field service equipment provided Responsibilities Perform on-site installation oversight, startup, and commissioning of power and distribution transformers (oil-filled and dry-type) at customer facilities Conduct acceptance testing per IEEE/IEC/NEMA and customer specifications prior to energization Support equipment energization planning, outage coordination, and site readiness reviews with customers, EPCs, and project managers Interpret and work from single-line diagrams, winding/vector diagrams, control schematics, and equipment nameplate data Perform Turns Ratio (TTR) testing, winding resistance, insulation resistance (IR/PI), power factor/dissipation factor, and SFRA testing Conduct Dissolved Gas Analysis (DGA) sampling and interpret oil analysis results to assess…