Senior Relay Technician- Utility Services

Senior Relay Technician

Brookhaven, Ms District Office or Conroe Tx Office are the headquarters with job locations predominately in MS, LA, TX, AR.

Permanent - Full Time

Normally four 10-hour days per week with occasional OT

Immediate opening

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At MMR, our most valuable assets are not our buildings or equipment, it is our family of employees with diverse backgrounds and experiences. Our investment in training programs and resources allows our employees to reach both their personal and professional goals. This is evident with MMR receiving numerous awards including “Best Place to Work” and consistently being recognized as one of the top Engineering News Record’s “Annual Specialty Contractors.”

MMR has served as the industry leader in instrumentation and electrical construction, maintenance, and technical services for over 30 years. Our diverse list of clients allows us the unique ability to work across industry lines in the oil and gas upstream and midstream as well as chemical and petrochemical downstream, industrial manufacturing, power generation, renewable energy, mission critical, heavy commercial, and energy storage sectors.

MMR holds the proud distinction of being the largest privately owned “Open Shop” contractor in the United States with over 30 branch offices including global locations in Canada and Mexico. For more information, please visit our website:

We are seeking an experienced Senior/Lead Relay Technician to join our Utility Services team. This position is responsible for the testing, commissioning, maintenance, troubleshooting, and repair of protective relaying systems and associated substation equipment in utility and renewable energy facilities.

The successful candidate will serve as a technical leader in the field, performing advanced relay testing and commissioning activities while mentoring junior technicians and ensuring projects are completed safely, efficiently, and in accordance with customer specifications and industry standards.

This role requires travel and the ability to work independently or lead small work crews on energized electrical substations and complex protection and control projects.

• Perform acceptance testing, commissioning, maintenance testing, and troubleshooting of protective relays and control systems.
• Test and commission transmission, distribution, and generation protection schemes.
• Verify proper operation of relay settings, logic, communications, and control systems.
• Perform end-to-end testing, point-to-point verification, functional testing, and system commissioning.
• Conduct testing on breaker failure, bus differential, transformer differential, line protection, feeder protection, capacitor bank, and generator protection schemes.
• Analyze relay event reports, oscillography, fault records, and disturbance recordings.

• Perform testing and troubleshooting of:
  • Transmission & Distribution Circuit breakers
  • Current transformers (CTs), Potential transformers (PTs), CCVTs, SSVTs
  • Power transformers, Auto transformers
  • Battery systems
  • Control circuits
  • SCADA and RTU systems
  • Line Panels, Breaker Panels
  • Bus and Transformer Differential Panels
  • Various SEL Relays for Transmission & Distribution
  • Metering equipment
  • Capacitor Banks & Protection
  • Reactors and Protection
• Verify proper operation of protection and control wiring.
• Support energization and startup activities.

• Lead field crews on relay and commissioning projects.
• Coordinate testing activities with customers, project managers, construction personnel, and operations groups.
• Train and mentor Relay…