Role Description We are seeking a Senior Power System Engineer- Renewable & Data Center Integration with deep expertise in large load and renewable interconnections. This role will support transmission-level planning, system impact studies, dynamic modeling, and EPC design efforts for utility-scale renewable projects and hyperscale data center developments. The ideal candidate brings strong analytical capability, hands-on modeling experience including Hardware in the Loop (HIL) testing. Key Responsibilities - Support large load and generation interconnection studies. - Apply and interpret NERC, FERC, ISO/RTO, TSP requirements for both generation and large load interconnections. - Develop and validate steady state models in ETAP and PSSE, and dynamic models in PSS®E and PSCAD for: - Large electronic loads (e.g., data centers) - PV, wind, and BESS resources - Support development and integration of: - Solar/Wind/BESS Power Plant Controllers (PPCs) - Master Plant Controllers (MPCs) - Lead RTDS / RSCAD CHIL testing (Control Hardware-in-the-Loop). - Support microgrid design and control studies at MV and HV levels. - Participate in EPC HV/MV substation design studies for: - Large data center projects - Utility-scale PV, wind, and BESS projects - Interface with Transmission Service Providers (TSPs), ISO/RTOs (especially ERCOT), developers, OEMs, and project stakeholders. - Perform steady-state and short-circuit analyses including: - Load flow studies - Short circuit analysis - Protection coordination - Arc-flash studies - Reactive power and energy loss analysis - Harmonic studies - Conduct electromagnetic transient (EMT) studies in PSCAD, including: - Transient overvoltage (TOV) - Transient recovery voltage (TRV) - Insulation coordination - SSR/SSO screening and mitigation analysis Qualifications - Bachelor’s or Master’s degree in Electrical Engineering (Power Systems preferred). - 5+ years of relevant experience in power systems planning and interconnection. - Strong experience in: - PSCAD/RSCAD EMT modeling - Experience embedding and coordinating PPC and MPC control strategies. - Experience with RTDS / RSCAD CHIL testing (Control Hardware-in-the-Loop). - Demonstrated experience with: - Large load interconnection studies (data center experience strongly preferred) - Generation interconnection (PV, wind, BESS) - Familiarity with NERC, FERC, ISO/RTO, TSP requirements for both generation and large load interconnections. - Professional Engineer (PE) license (preferred but not required). Company Description At Leidos, we pride ourselves on being a trusted and technology-focused solutions provider. Our Power Delivery Services Team is the go-to for utilities and mobile operators who need reliable power and telecommunication expertise. We've worked with over 50 investor-owned utilities, over 160 municipals/cooperatives, and we're continuing to expand our reach. Plus, we've got an amazing group of industry-leading construction partners who help us deliver meaningful Energy Delivery Solutions. Our recognition as an industry leader has been confirmed time and time again. Engineering News-Record (ENR) has ranked Leidos among the Top 10 T&D Firms and Top 10 Power Firms. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting June 5, 2026 Pay Range Pay Range $87,100.00 - $157,450.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.