Senior Electrical Engineer – Substations & HV Design (Hybrid)

Repsol; Houston (TX); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Repsol SA in Downtown Houston seeks a Senior Electrical Engineer to lead MV/HV substation design, protection schemes, and transmission-related studies. You will support renewable projects and oversee complex electrical deliverables in a hybrid work setup.

The role requires a PE license, 7+ years of experience, and strong proficiency with ETAP/CYMCAP/WinIGS and other HV software. You’ll collaborate with multiple teams to ensure compliant, safe and reliable electrical designs.

Qualifications

• Bachelor’s or master’s degree in electrical engineering.
• 7+ years of relevant technical experience.
• Professional Engineering license in at least one USA state.
• Expert knowledge of medium- and high-voltage substation equipment including relay protection systems.
• Experience with large utility-scale solar and wind projects preferred.
• Experience with HV field service preferred.
• Proficient in ETAP, CYMCAP, WinIGS; knowledge of CDEGS, EMTP, PSS/E, PSCAD preferred.
• Familiarity with capacitor banks, transformers, switchgear operations.

Responsibilities

• Understand substation and transmission line project scopes and deliverables.
• Produce control building layouts, general arrangement, cable/conduit plans, grounding, BOM and cable schedules.
• Contribute to substation physical documents for AIS and GIS substations.
• Review design basis memos and guide contractor discipline engineers.
• Provide electrical, HV, collection system, and substation support to renewables.
• Participate in design/construction reviews of collection, substation, and transmission designs.
• Oversee electrical calculations, studies, and designs for accuracy and compliance.
• Review and improve commissioning, maintenance, and SOPs.
• Review maintenance records and recommend corrective actions per NERC standards.
• Lead lessons-learned sessions on misoperations and safety events.
• Develop site betterment projects with scope, budget, schedules, and RFPs.

Skills

Substation design (MV/HV)

Relay protection systems

Transmission line design

Protection coordination

Power systems studies

Education

Electrical engineering degree (BSc/MSc)

Tools

ETAP

CYMCAP

WinIGS

CDEGS

EMTP

PSS/E

PSCAD

Job description

Repsol SA in Downtown Houston seeks a Senior Electrical Engineer to lead MV/HV substation design, protection schemes, and transmission-related studies. You will support renewable projects and oversee complex electrical deliverables in a hybrid work setup.

The role requires a PE license, 7+ years of experience, and strong proficiency with ETAP/CYMCAP/WinIGS and other HV software. You’ll collaborate with multiple teams to ensure compliant, safe and reliable electrical designs.