Electrical Engineer, Digital Twin & Simulation

At Jacobs, we’re challenging today to reinvent tomorrow by solving the world’s most critical problems for thriving cities, resilient environments, mission‑critical outcomes, operational advancement, scientific discovery and cutting‑edge manufacturing, turning abstract ideas into realities that transform the world for good.

We are seeking an experienced Electrical Engineer with deep expertise in power systems modeling, rotating machinery, and electrical controls to join our digital twin and pre‑commissioning simulation practice. This mid‑level role targets a professional with 5–10 years of experience who brings rigorous electrical engineering fundamentals and the applied interest to translate that knowledge into high‑fidelity simulation models that de‑risk commissioning and validate design decisions before field equipment is energized.

Location:

Hybrid in the United States with ~25% travel to client sites.

• Dynamic Model Development – Build physics‑based dynamic models spanning the full power path—from utility supply or on‑site generation through switch gear and distribution to load endpoints. Represent key equipment characteristics including rotational inertia, governor type and response, droop control, alternator winding parameters, ATS transfer timing, UPS topology and bypass logic, and branch circuit coordination.
• Rotating Machinery & Generation – Develop models of reciprocating engine‑generators, combustion turbines, and hybrid generation configurations. Accurately represent governor and AVR behavior, paralleling switch gear synchronization, load‑sharing characteristics, and generation source interactions during paralleling, load transfer, and unit trip events. Model BESS grid‑forming and frequency/voltage response behavior where applicable.
• Transient, Harmonic & Protection Analysis – Model transients and power quality phenomena including voltage and frequency deviation during transfer events, RoCoF under generation loss, THD under non‑linear loading, and UPS waveform degradation during fault events. Model protection relay coordination, overcurrent device selectivity, and breaker trip/reclose logic. Evaluate outputs against applicable standards including ITIC/CBEMA and IEEE 519.

• Contingency & Fault Simulation – Develop and execute N‑1/N‑2 contingency scenarios, ATS open‑ and closed‑transition transfer scenarios, and UPS power path fault scenarios. Assess power margin, overload duration, waveform quality, ride‑through behavior, and load transfer success against defined acceptance criteria. Design cascading multi‑system fault scenarios to evaluate failure behavior, alarm escalation logic, and load shedding sequences.
• Black‑Start Sequencing – Model and execute complete startup from de‑energized conditions, sequencing generation ignition, governor stabilization, switch gear closure with synchronization verification, UPS initialization, and load energization. Identify automation gaps, validate interlock release logic, and document the full sequence timeline from de‑energized conditions to stable generation and load acceptance.
• Capacity & Expansion Envelope Analysis – Model phased expansion scenarios to evaluate whether planned electrical infrastructure can support incremental load additions with acceptable redundancy margins. Produce headroom analyses, uptime projections, and fuel‑limited runtime assessments to support go/no‑go decisions at each expansion milestone.

• Sequence of Operations Validation – Simulate and validate programmed electrical control sequences—ATS transfer logic, generator paralleling and synchronization, and UPS redundancy and bypass sequences—against project control narratives and design intent. Document pass/fail results against a defined test matrix.
• Control System Testing – Support integration of PLC logic into the simulation environment and execute control system factory acceptance testing against live or emulated controllers. Identify control logic deficiencies, coordinate corrective actions, and retest updated logic prior to field…