Sr. Systems Engineer – Electrical at Tract Capital Management, LP – Mercer Island, Washington

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 upleveling 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 ongoing 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 components interact under a variety of operating and failure scenarios.

The ideal candidate will pair strong electrical engineering fundamentals with practical data center experience, ensuring that rack-level power requirements are consistently met, that specifications and quantities for power distribution components are accurate and actionable, and that electrical failover behaviors are well understood and systematically improved. This role is accountable for end-to-end electrical system integrity, including feed-down simulations, outage and failover analysis, and impact assessment for infrastructure upgrades and expansions, with the goal of optimizing uptime SLAs and minimizing power stranding.

Key Responsibilities

Power Topology Ownership & Rack-Level AlignmentDevelop 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.Configuration, Specification, and Data AccuracyDefine, 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.Electrical Failover & Outage AnalysisPerform 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.Feed-Down Simulation & System-Level OptimizationSimulate 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.Infrastructure Upgrades & Expansion Impact AnalysisLead or support infrastructure upgrade and expansion impact analyses for electrical systems, including:Adding or upgrading busways, tap boxes, R-boxes, or whips.Upgrading UPS, PDU, or generator capacity.Changing feeder configurations or protection schemes.Quantify the electrical and operational impact of proposed changes on:Available and stranded power capacity.Redundancy levels and single-/dual-corded load behavior.Expected fault and failover behavior across the lineup.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.Cross-Functional Collaboration & DocumentationPartner 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.Support incident reviews, design reviews, and vendor evaluations from an electrical systems standpoint.QualificationsRequiredBachelor’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.PreferredExperience 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.Required Traits and SkillsIntegrity and Ethical Standards: Operate with a high degree of integrity and safety-consciousness in all engineering decisions, especially when affecting live critical environments.Effective Communication: Clearly explain complex electrical concepts and tradeoffs to both technical and non-technical audiences; comfortable delivering findings to internal engineering, operations, and leadership teams.Operational Paranoia: Anticipate risks, identify vulnerabilities in the electrical topology, and proactively implement mechanisms to prevent and minimize disruptions and safeguard safety, security, availability, and scale.Strategic & Systems Thinking: Understand how local design decisions (e.g., a tap box or R-box configuration) impact the behavior of the entire power lineup and overall uptime SLA.Critical Thinking & Analytical Ability: Use data, simulation, and empirical evidence to drive decisions; evaluate cost, risk, and performance tradeoffs for alternative designs or configurations.Collaboration & Relationship Management: Build strong working relationships with capacity planners, site operations, facilities engineers, vendors, and other partners to drive aligned, high-quality outcomes.Leadership & Mentorship: Provide technical leadership within the electrical engineering domain, mentor peers and junior engineers, and contribute to a culture of continuous improvement.Expected Salary Range

$120-150k Salary + Bonus

Fleet Data Centers Employment

Fleet Data Center employees enjoy competitive compensation and comprehensive benefits, including 100% employer-covered medical, dental, and vision insurance, a 401K program, standard paid holidays, and unlimited PTO.

NOTE: This job description is not intended to be all-inclusive. Employees may perform other related duties as assigned to meet the organization’s ongoing needs.

Fleet Data Centers is proud to be an Equal Opportunity Employer. Qualified applicants are considered for employment regardless of age, race, color, religion, sex, national origin, sexual orientation, gender identity, disability, or veteran status.

If you need assistance applying for any of our open positions, please contact us at info@fleetdatacenters.com.