Senior Substation Relay and Control Engineer

ISG • Power Grid • Energy & Utilities • 3 days ago
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Salary
$80k – $120k per year
Location
In office (Sioux Falls)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 25, 2026. First seen by Alion on Sep 9, 2026.

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ISG

ISG is an employee-owned architecture, engineering, environmental and planning firm headquartered in Mankato, Minnesota, serving public and private clients through business units spanning energy, transportation, water, public works, healthcare, education and food and industrial projects. Founded in 1973 by two engineers, it has grown to about 20 offices across nine states, is 100 percent employee owned and ranks in the ENR Top 500 design firms. It hires civil, municipal, transportation and water resources engineers, substation and transmission line engineers and designers, construction technicians, land surveyors, project managers and proposal writers.
isginc.com • HQ: Mankato, United States • Real Estate • Science & Engineering • Energy & Utilities • Est. 1973

We are seeking aSenior Substation Relay and Controls Engineer to lead the design and delivery of protection and control systems for high-voltage transmission and distribution substations supporting one of ISG's longstanding clients, FirstEnergy. In this role, you will develop and review one-line and three-line diagrams, AC/DC schematics, wiring diagrams, panel layouts, equipment lists, and other critical design deliverables while serving as a technical resource for clients and project teams. You will solve complex engineering challenges, mentor junior staff, and help deliver safe, reliable, and compliant designs that support the electric grid.

Within our Energy Business Unit, ISG’s Power Group plays a vital role in delivering resilient infrastructure solutions, supporting projects and clients nationwide.

We operate as a one-profit-center firm and we work as one team across all offices, sharing resources, expertise, and opportunities to best serve our clients and support our employee owners. Regardless of where this position is posted, we encourage all qualified candidates from any ISG geography to apply.

Similar projects and initiatives you may contribute to as part of this role:

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