Senior Substation Design Engineer, PE – Power Systems

ISG; Sioux Falls (SD); On-site; USD 105,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, and vision

Paid time off

Paid holidays and paid volunteer time

Paid parental leave

401(k) retirement plan

Employee Ownership Stock Plan (ESOP)

Life insurance

HSA and FSA options

Parking reimbursement

Job summary

ISG is seeking a Senior Physical Substation Engineer in Sioux Falls, SD to lead the design of high‑voltage substations, including layouts, grounding, conduit, and equipment placement, ensuring compliance with IEEE/ANSI/NEC/NESC/NFPA and client standards.

You will mentor junior engineers, review deliverables, and serve as the primary client contact for resolving technical issues, with projects spanning utilities such as FirstEnergy.

Qualifications

• Bachelor of Science in Electrical Engineering required; focus in power systems preferred.
• Professional Engineer (PE) license required.
• 5+ years of experience in substation physical design with leadership on medium to large projects.
• Proficiency with marking up drawings digitally and CAD operations.
• Experience with grounding analysis software (WinIGS, CYME, CDEGS, or equivalent).
• Experience with lighting analysis software (WinIGS, CDEGS, PSCAD or equivalent).

Responsibilities

• Develop and review complete physical design packages for high-voltage substations, including: one-line and three-line diagrams, GA drawings, bus work layouts, grounding layouts and calculations, conduit routing plans, and BOMs.
• Ensure compliance with utility, client, and regulatory standards (IEEE, ANSI, NEC, NESC, NFPA).
• Apply advanced engineering judgment to optimize substation layouts for safety, reliability, constructability, and cost efficiency.
• Oversee integration of civil/structural and protection & control requirements into the physical design.
• Perform and review calculations including grounding, voltage drop, conduit fill, lightning protection, illumination, and cable sag/tension.
• Review and approve design packages including drawings, reports, and construction notes.
• Lead design coordination meetings with clients, utilities, vendors, and internal teams.
• Serve as technical point of contact for clients and resolve complex design issues.
• Mentor junior engineers and designers; track design hours and milestones.
• Recommend improvements to design processes, tools, and templates to increase quality.
• Stay current with emerging technologies and standards impacting substation design.

Skills

Power systems

Project leadership

Client liaison

Education

Bachelor of Science in Electrical Engineering

Tools

WinIGS

CYME

CDEGS

Visual Lighting

AGi32

DIALux

Revit

SDS

Inventor

Job description

ISG is seeking a Senior Physical Substation Engineer in Sioux Falls, SD to lead the design of high‑voltage substations, including layouts, grounding, conduit, and equipment placement, ensuring compliance with IEEE/ANSI/NEC/NESC/NFPA and client standards.

You will mentor junior engineers, review deliverables, and serve as the primary client contact for resolving technical issues, with projects spanning utilities such as FirstEnergy.