Field Commissioning Engineer - Utility Services

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

MMR Group is the largest privately owned open-shop electrical and instrumentation contractor in the United States, leading the industry in providing instrument and technical services. With over 30 offices acrossthe country, MMR offers a diverse range of services, including electrical construction and maintenance, power distribution, panel and modular control building fabrication, telecommunications and security systems, commissioning and start-up assistance, power development, maintenance services, mission-critical construction, and power engineering and design

At MMR, our people are our product. It is not equipment, tools, buildings, or dollars that have led to our success, but rather it is compassion, ingenuity, and drive to succeed instilled in our people.

We are successful because we are committed to investing in our people, providing competitive salaries and benefits packages, and offering lifelong learning and development opportunities.

Our investment in training programs and resources allows our employees to reach both their personal and professional goals. With a work hard, play hard mentality, MMR stands committed to being an exciting place to work.

MMR is seeking highly motivated Field Commissioning Engineer candidates to support the testing, commissioning, startup, and troubleshooting of utility substation Protection & Control (P&C) systems. The Commissioning Engineer will serve as the technical lead for commissioning activities, ensuring substation systems are installed, tested, and energized safely and in accordance with engineering design, customer requirements, and industry standards.

This role requires extensive knowledge of protection and control systems, protective relaying, substation equipment, and electrical testing procedures. The successful candidate will work directly with customers, project managers, construction teams, and engineering personnel to execute commissioning projects ranging from distribution substations to EHV transmission facilities.

This position is ideal for an experienced relay technician, commissioning specialist, or protection and control engineer seeking a field-focused leadership opportunity.

• Lead commissioning and energization activities for transmission and distribution substations.
• Develop and execute commissioning plans, test procedures, and startup checklists.
• Verify proper installation and operation of protection and control systems.
• Perform and oversee point-to-point checks, functional testing, and acceptance testing.
• Coordinate system energization and cutover activities.
• Support outage planning and switching activities.
• Lead troubleshooting efforts during startup and commissioning.

• Commission and validate:
  • Line protection schemes
  • Transformer protection systems
  • Bus differential systems
  • Breaker failure protection
  • Feeder protection
  • Generator protection
  • Capacitor bank protection
  • Load shedding systems
• Verify relay settings implementation and relay logic functionality.
• Conduct end-to-end protection testing and communication-assisted scheme testing.
• Analyze relay event reports, fault records, and oscillography data.
• Validate protection coordination and system performance.

• Review construction drawings, relay settings, one-lines, wiring diagrams, and design packages.
• Identify design discrepancies and provide field engineering support.
• Support integration of protection, control, SCADA, RTU, and communication systems.
• Assist with engineering design improvements and commissioning lessons learned.
• Coordinate engineering changes and field revisions.
• Ensure compliance with utility standards, project specifications, and regulatory requirements.

• Serve as technical lead for commissioning projects.
• Coordinate activities among:
  • Utility customers
  • Project managers
  • Construction teams
  • Relay testing personnel
  • Operations groups
• Manage commissioning schedules and project milestones.
• Support project planning and resource forecasting.
• Mentor relay technicians and junior engineers.
• Facilitate customer meetings and startup coordination meetings.

• Develop commissioning reports and turnover packages.
• Review test results and ensure documentation…