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Fleet Data Centers · 20 hours ago

Sr. Systems Engineer – Electrical

Mercer Island, WA

Contract

Onsite

Senior Level

$120K/yr - $150K/yr

6+ years exp

Fleet Data Centers designs and operates mega-scale data center campuses, providing innovative solutions for Cloud and AI infrastructure. The Senior Systems Engineer – Electrical will be responsible for the design validation and optimization of the power distribution systems, ensuring reliability and efficiency in a high-demand environment.

Data CenterData ManagementIT Infrastructure

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 whips behave under fault, overload, and transfer conditions, and identify design or configuration changes to reduce operational risk

Work closely with Site Operations and Facilities Engineering to incorporate lessons learned from real incidents into design standards, operating procedures, and protection settings

Simulate feed-down scenarios (e.g., loss of a feed, maintenance bypass, partial generator availability, UPS module failures) to understand upstream and downstream effects on the entire power lineup

Use these simulations and scenario analyses to optimize uptime SLAs, ensuring that failure and maintenance events remain within contracted service levels

Minimize power stranding by balancing capacity across feeds, phases, and power paths while preserving redundancy

Identify structural constraints or choke points in the power distribution architecture and propose design or configuration improvements

Translate simulation results into clear requirements and guidance for capacity planning, rack deployment policies, and operational runbooks

Lead or support infrastructure upgrade and expansion impact analyses for electrical systems, including adding or upgrading busways, tap boxes, R-boxes, or whips

Quantify the electrical and operational impact of proposed changes on available and stranded power capacity

Provide engineering input into method-of-procedure (MOP) documents and risk assessments for all electrical changes, ensuring impacts to critical load are understood and mitigated

Partner with capacity planners, customers engineering teams, site operations, facilities engineering, and procurement to ensure alignment between electrical design, deployment plans, and capital/operational constraints

Produce clear, repeatable design guides, reference one-lines, and standard topologies for different site types, power tiers, and rack densities

Contribute technical content to internal standards and playbooks covering power topology design rules and constraints, component specification and qualification criteria, failover expectations and test plans

Qualification

Electrical engineeringData center experiencePower distribution designElectrical failover analysisAnalytical skillsSimulation toolsCommunication skillsCollaborationLeadershipProblem-solving

Required

Bachelor's degree in electrical engineering or a closely related engineering discipline

6+ years of experience in data center electrical engineering, critical power systems design, industrial power distribution, or a similar field involving medium- and low-voltage systems

Demonstrated deep understanding of data center or industrial power distribution topologies, including utility feeds, generators, UPS systems, switchgear, PDUs, busways, tap boxes, R-boxes, and rack-level power delivery

Proven ability to analyze electrical failover and outage scenarios, including breaker coordination, redundancy schemes (N/N+1/2N), and cascading failure risks

Experience validating that rack power requirements (per-rack kW, inlet configuration, redundancy model) are met by upstream infrastructure, including tap box and R-box ratings and whip configurations

Proficiency with electrical design and analysis tools and the ability to interpret one-line diagrams, protection settings, and equipment submittals

Strong analytical and problem-solving skills, with the ability to translate simulation and analysis results into practical design and operational recommendations

Clear written and verbal communication skills, including the ability to document complex electrical concepts and present findings to engineering and operations stakeholders

Preferred

Experience in hyperscale or colocation data centers, with exposure to high-density compute (AI/GPU) power distribution challenges

Familiarity with rack power supply and power shelf design, including redundancy configurations, inrush behavior, and interaction with upstream protection

Hands-on experience with DCIM and asset management tools and integrating accurate electrical data and connectivity into those systems

Knowledge of relevant electrical codes and standards (e.g., NEC, IEEE) as applied to mission-critical facilities

Prior experience conducting infrastructure upgrade or expansion impact analyses in live production environments, including MOP development and risk mitigation

Understanding of broader data center performance metrics (e.g., PUE, capacity utilization) and how electrical design decisions influence them