Electrical Testing & Commissioning Technician - Substation​/Relay​/Transformer

Advanced Electric Systems (AES) is a wholly owned subsidiary of Quanta Services (NYSE: PWR), the largest utility contractor in North America. We are an electrical testing, maintenance, and repair company that specializes in high‑voltage substations. Based out of Salt Lake City, Utah, AES has completed projects across North America and is in high demand as the country’s electrical infrastructure is rapidly upgraded and expanded.

AES is an Equal Opportunity Employer and participates in E‑Verify.

Advanced Electric Systems (AES) is seeking Electrical Testing & Commissioning Technicians (Mid‑Level through Senior) to support field testing, startup, commissioning, troubleshooting, and maintenance of low‑, medium-, and high‑voltage electrical power systems. Technicians will perform acceptance testing, protection system verification, maintenance testing, and commissioning activities on electrical infrastructure including substations, renewable interconnect facilities, industrial power systems, and mission‑critical installations. This position involves nationwide travel supporting outage‑based maintenance, commissioning, system startup, and capital upgrade projects for utility and EPC clients.

• Protective Relay Systems (SEL, GE Multilin, ABB, Siemens, Basler)
• Power Transformers (Dry‑Type & Oil‑Filled)
• Instrument Transformers (CTs / VTs)
• Circuit Breakers (LV / MV / HV – Vacuum, SF₆, Oil)
• GIS Equipment
• Medium & High Voltage Switchgear
• Protection & Control Schemes
• DC Systems & Battery Banks
• Metering & SCADA Systems

• Acceptance & Maintenance Testing
• Relay Functional & End‑to‑End Testing
• Transformer Electrical Testing (TTR, PF, Winding Resistance)
• Breaker Timing & Contact Resistance
• CT Polarity & Saturation Testing
• Primary & Secondary Injection
• Protection Scheme Verification
• Switchgear & GIS Commissioning
• Outage‑Based Startup & System Energization
• Troubleshooting Protection & Control Systems

• Perform field testing, troubleshooting, startup, and commissioning of electrical equipment
• Interpret electrical one‑lines, schematics, protection logic, and relay settings
• Execute relay testing and protection scheme verification during outage‑based commissioning projects
• Lead or support field crews during testing, commissioning, and energization activities
• Provide technical leadership on startup and capital upgrade projects when applicable
• Document and report test results per project specifications
• Coordinate with utility clients, EPCs, and project management teams

• 3+ years electrical testing or commissioning experience
• Experience with substation equipment testing
• Familiarity with protective relay testing
• Experience with Doble, Omicron, Manta, Vanguard, or similar
• Ability to read electrical schematics and wiring diagrams
• Willingness to travel for project assignments

• NETA II / III / IV Certification
• Transformer Testing Experience
• Breaker Testing Experience
• Commissioning or Startup Experience
• Utility or EPC Project Experience
• Renewable Interconnect or BESS Project Experience
• Military Prime Power or Equivalent

ACS hires technicians with NETA certification but is not a NETA‑accredited company.

When you join Advanced Electric Systems (AES), you’re not just stepping into a job, you’re becoming part of a team that takes pride in the work we do and the people who do it. Backed by the nationwide strength of Quanta Services (NYSE: PWR), you’ll have the stability and resources of the largest utility contractor in North America while still enjoying the close‑knit feel of a company that truly knows and supports its people.

You’ll be joining a respected group of technicians and industry experts known for delivering high‑quality electrical testing, maintenance, and repair services in high‑voltage substations and protection and control systems. Your skills matter, your voice is heard, and your professional growth is taken seriously. Whether you’re looking to expand your technical expertise, take on new challenges, or build a long‑term career, you’ll have the backing and opportunities to make it happen.

• Earn top‑tier wages with…