Sr. Systems Engineer – Electrical

Fleet Data Centers designs, builds and operates mega-scale data center campuses. Fleet provides its customers with flexibility and predictability to meet their upside demand forecasts, addressing a key need in the market as traditional leased models are struggling to keep pace with the demand for new Cloud and AI infrastructure. Fleet is led by a team of industry veterans that have already made a lasting imprint on the evolution of global digital infrastructure and are committed and uniquely capable of up leveling data center development scale and operations in the face of rising demand.

Fleet is well positioned to bring in-house design, engineering and operational capabilities to collaborate with customers on tailored solutions for campuses of 500MW+. This unique model enables Fleet to provide the world’s largest and most sophisticated customers with a seamless extension of their own data center fleets with constant access to design innovation. Fleet is headquartered in Denver, Colorado, with satellite offices in Seattle, WA and Arlington, VA.

Position Overview

We are seeking a Senior Systems Engineer – Electrical to own the detailed design validation, analysis, and optimization of Fleet’s data center power distribution topology from utility through the rack. This role requires a deep understanding of Fleet data center power topology—including breakers, PDUs, UPS systems, generators, busways, tap boxes, R‑boxes, and whips—and how these elements behave across normal, maintenance, and failure scenarios.

The ideal candidate combines strong electrical engineering fundamentals with practical data center experience, ensuring rack-level power requirements are met, specifications and counts for power components are correct, and failover behaviors are well understood. This role is accountable for end-to-end electrical system integrity, including feed-down simulations, outage analysis, and upgrade impact assessments to optimize uptime SLAs and minimize power stranding.

Key Responsibilities

• Develop and maintain a deep understanding of Fleet data center power topology, from utility through medium-voltage and low-voltage distribution, busways, tap boxes, R-boxes, and rack whips, down to rack power supplies and power shelves.
• Ensure that tap box and R-box ratings meet rack power requirements, including continuous, peak, and redundancy constraints (e.g., N, N+1, 2N).
• Review and validate rack SKUs and associated power supply or power shelf specifications, ensuring compatibility with upstream distribution (feed counts, breaker ratings, connector types, redundancy configurations).
• Partner with rack engineering, capacity planners, and operations to ensure that rack layouts and deployment plans are electrically feasible within Fleet’s standard power lineups and site-specific constraints.

• Define, review, and maintain R-box specifications and counts, tap box specifications and counts, and whip specifications and counts for each deployment.
• Ensure that all specifications and quantities are accurate, documented, and transmitted to capacity planners and procurement teams in a timely manner so they can plan, model, and procure required infrastructure.
• Create and maintain standardized BOM templates and configuration libraries for electrical distribution components (busways, tap boxes, R-boxes, whips, breakers, PDUs, etc.) tied to specific rack SKUs and power tiers.
• Collaborate with DCIM and tooling teams to ensure electrical topology, ratings, and connectivity are modeled with high fidelity and kept current.

• Perform electrical failover analysis across the power chain to ensure that credible outage scenarios (utility loss, generator failure, UPS failure, breaker trips, busway/tap/R-box faults, rack-level faults) do not lead to cascading failures.
• Analyze breaker coordination, protective device settings, and selective tripping behavior to confirm faults are isolated without compromising redundant paths.
• Model and validate how breakers, PDUs, UPS systems, generators, busways, tap boxes, R-boxes, and…