Hiring Senior EngineerSacramento, CA (Hybrid)Why This Role ExistsEvery multi-vendor Tier III/IV data center protection system we deliver requires an engineer who owns the full P&C scope — coordination studies, relay settings, automation logic, and commissioning — under one accountability. This role exists because splitting that scope across firms creates handoff gaps that surface as retests during witness testing. Our West Coast pipeline serves the Northern California and Pacific Northwest data center corridors. The work spans 2(N+1) medium‑voltage protection with IEC61850GOOSE over PRP, multi‑vendor generator controls (SEL, Woodward, CAT), and staged commissioning on live critical infrastructure.What You OwnProtection coordination studies for 2(N+1) medium‑voltage distribution per IEEE242SEL‑751/700G relay settings packages with trip scheme logic diagramsWoodward easYgen3400/LS‑6 generator controller programming and Modbus integrationIEC 61850 GOOSE configuration for zone‑selective interlocking across PRP networksSELRTAC‑3530 automation logic: mode transitions, load shed/add sequencing, SOE concentrationCommissioning procedures and witness test support through owner acceptanceAs‑built documentation packages for turnover to operationsSystems You'll TouchVendor Platforms: SEL, Woodward, CAT (Caterpillar), ABBSoftware Tools: AcSELerator QuickSet, AcSELerator RTAC, SEL Architect, ETAPProtocols: IEC 61850 GOOSE, DNP3, ModbusTCP, IRIG‑BStandards: NFPA70E, IEEE242 (Buff Book), IEEE1584, IEC 61850, IEC 62439‑3 (PRP/HSR)Test Phases: Factory Acceptance Test (FAT), Site Acceptance Test (SAT), Secondary injection testing, Functional performance testing, Witness testingWhat Success Looks LikeFirst90DaysOnboarded into an active project— reviewed protection philosophy, existing settings, and one‑line diagramsDelivered first relay settings package (SEL‑751 or SEL‑700G) through internal reviewParticipated in site commissioning or witness testing on a current projectFirst180DaysOwning a full protection scope end‑to‑end— from coordination study through commissioning planLeading witness testing sessions with prime contractor and owner representativesContributing to IEC 61850 GOOSE or RTAC automation logic on at least one projectRequired Background7+ years protection & controls engineering for medium‑voltage power systemsSEL relay programming experience (QuickSet, 751/700G families) with delivered settings packagesProtection coordination study experience per IEEE242 — time‑current curves, relay coordinationSecondary injection testing with Omicron or Doble test sets — trip timing, coordination validationCommissioning experience on energized critical facilities (data centers, substations, or industrial power)Working knowledge of NFPA70E arc‑flash safety and energized work practicesPreferred BackgroundIEC 61850 GOOSE configuration experience — SCL files, publish/subscribe, multi‑vendor interoperabilityWoodward generator controller programming (easYgen3400, LS‑6, DTSC‑200)SELRTAC‑3530 automation logic (IEC61131‑3 Structured Text)NETA LevelIII orIV certificationArc‑flash study experience per IEEE1584What to Expect in the FieldTravel30–50% during commissioning phases, project‑dependent. West Coast sites primarily.Site hours include standard office hours for design; site hours during commissioning (early starts, occasional weekends near milestones).Customer‑Facing direct interface with prime contractor project managers and commissioning leads; owner witness testing coordinators during acceptance.Documentation Heavy— settings packages, coordination studies, trip scheme logic diagrams, commissioning procedures, as‑built documentation.Field Safety NFPA70E compliance required — arc‑flash PPE for medium‑voltage switchgear, approach boundaries, LOTO procedures.Why ZigguratOwn the full scope — protection studies, relay programming, and commissioning under one accountability, not task fragments divided across firmsWork across 8 manufacturer platforms (SEL, Woodward, CAT, ABB, Eaton, Cisco, EIG, UPS OEM), not inside one vendor ecosystemDirect access to the principal engineer — your technical judgment shapes project outcomes, decisions happen in conversationsShape how a specialized P&C practice scales from its founding stage into the data‑center market#J-18808-Ljbffr