Senior Relay Technician- Utility Services

Job Description

Job Description

Position/Job Title: Senior Relay Technician

Job Location (address):  Brookhaven, Ms District Office or Conroe Tx Office are the headquarters with job locations predominately in MS, LA, TX, AR.

Job Duration: Permanent - Full Time

Job Schedule: Normally four 10-hour days per week with occasional OT

Start Date: Immediate opening

Website:  MMR Group | Home (mmrgrp.com)

Company Culture:

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.”

Organization Description:

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: 

The responsibilities would include, but not limited to, the following:

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. Key Responsibilities
Relay Testing & Commissioning

• 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.

Substation Testing

• 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.

Leadership & Project Execution

• Lead field crews on relay and commissioning projects.
• Coordinate testing activities with customers, project managers, construction personnel, and operations groups.
• Train and mentor Relay Technicians and Apprentices.
• Review test plans, drawings, settings files, and commissioning procedures.
• Provide technical guidance and problem resolution during project execution.

Documentation & Reporting

• Prepare accurate test reports and commissioning documentation.
• Review relay settings and protection documentation for completeness.
• Maintain calibration records and testing equipment logs.
• Ensure deliverables meet customer and company quality standards.

Safety

• Promote and maintain a strong safety culture.
• Follow all company, customer, OSHA, and NFPA 70E safety requirements.
• Participate in job hazard assessments, tailboard meetings, and site safety programs.

Required Qualifications

• High School Diploma or GED.
• Minimum 8+ years of relay testing and commissioning experience in utility substations.
• Demonstrated experience with transmission and distribution protection systems.
• Proficiency in reading:
  • One-line diagrams
  • AC/DC schematics
  • Wiring diagrams
  • Relay settings files
• Strong troubleshooting and problem-solving skills.
• Ability to travel as required; Mostly Mississippi, Texas, Louisiana, Arkansas.
• Valid driver's license with acceptable driving record.
• Ability to pass applicable background checks, drug screens, and customer qualification requirements.

Preferred Qualifications

• Associate degree in Electrical Technology or related field.
• Experience with major relay manufacturers including:
  • GE
  • Siemens
  • ABB
  • Beckwith
  • Basler
  • Schweitzer Engineering Laboratories (SEL)
• Experience with Doble and Omicron testing equipment.
• Experience with SCADA, RTU, and communications testing.
• Previous relaying crew lead, relay foreman, or technical supervisory experience.

Technical Skills
The ideal candidate will have experience with:

• SEL AcSELerator
• Omicron Test Universe
• Doble Protection Suite
• ASPEN OneLiner
• Relay setting implementation and verification
• IEC 61850 applications
• Mirrored Bits communications
• Fiber optic communication systems
• Protection scheme testing
• NERC and utility commissioning requirements

Physical Requirements

• Ability to work in energized substations and industrial facilities.
• Ability to lift and carry up to 50 pounds.
• Ability to work outdoors in varying weather conditions.
• Ability to stand, kneel, climb, and work from ladders as required.
• Ability to travel and work overtime when needed.

Why Join Us

• Competitive compensation
• Per diem and travel opportunities
• Company vehicle
• Industry-leading testing equipment
• Career advancement opportunities
• Challenging utility and renewable energy projects
• Safety-focused culture
• Opportunity to work with industry experts on critical power infrastructure

Recommended Career Path for MMR Utility Services

1. Relay Technician I
2. Relay Technician II
3. Relay Technician III
4. Relay Technician IV
5. Senior Relay Technician
6. Lead Relay Technician
7. Field Commissioning Engineer
8. Senior Commissioning Engineer
9. Commissioning Manager

MMR Group, Inc. and its affiliated companies ("MMR") is an Equal Opportunity Employer and does not discriminate on the basis of race, color, national origin, religion, sex, age, veteran status, genetic information or any other legally protected class.

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