Commissioning Manager

Job Description

Job Description

MMR Commissioning Manager
Abilene, TX

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.” All of which can be further explained on our website ( by watching the provided videos.

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, Qatar, and South America. For more information, please visit our website:

Job Duration: up to 2 years

Job Schedule: 55-66 hours/week

Rate: $58.00 - $65.00/hour (depending on experience)
Per Diem: $1,050/week if all qualifications are met

The Commissioning Manager is responsible for planning, executing, and documenting all electrical commissioning activities on a mission-critical data center project. This leadership role oversees a commissioning team that includes a Commissioning Coordinator, Energy Marshals, and LOTO Coordinators, ensuring all systems are safely energized, tested, and delivered to meet client specifications, industry standards, and critical facility requirements.

Duties/Responsibilities of a Commissioning Manager (including but not limited to):

• Lead all aspects of low and medium-voltage electrical commissioning, including switchgear, UPS systems, generators, Building Management System integration, and power distribution
• Ensure systems are installed and functioning in accordance with project drawings, specifications, and approved commissioning scripts
• Coordinate phased energization, acceptance testing, integrated systems testing (IST), and turnover with GC, owner, and commissioning authority
• Manage and mentor the commissioning team direct reports, including - Commissioning Coordinator: Scheduling, documentation, checklist tracking. Energy Marshal: Energy control, safe energization, live-dead-live (LDL) validation and development of Method of Procedures (MOP). LOTO Coordinators: Safe lockout/tagout of energized systems and device traceability.
• Delegate tasks clearly, hold team members accountable, and ensure compliance with safety and quality standards.
• Oversee Lockout/Tagout program execution for all commissioning-related work.
• Ensure compliance with NFPA 70E, and company-specific energy control procedures.
• Review and authorize LOTO plans, control zone drawings, and tag placement prior to system work.
• Confirm LDL testing is performed before system re-energization and recorded accurately.
• Interface with general contractor, owner’s commissioning agent, and other trade partners to align commissioning activities with overall construction milestones.
• Participate in daily coordination meetings and commissioning readiness reviews.
• Provide detailed daily and weekly progress updates to project stakeholders.
• Review and validate all commissioning documentation including - Pre-functional checklists, Functional performance tests, Issue logs and deficiency reports, LDL and LOTO records, Method of Procedures (MOPs)
• Ensure all test results and safety documentation are compiled for client turnover and internal QA/QC.

Required Qualifications:

• 7–12+ years commissioning, startup, electrical testing, or turnover experience
• Strong knowledge of energization sequencing, deficiencies, turnover documentation, and system readiness
• Industrial electrical or mission critical experience preferred
• Must work across construction, quality, and client operations
• Strong knowledge of NFPA 70E, and energy control procedures

MMR offers a competitive benefits package including health, dental, vision, 401(k) and numerous other voluntary benefits.

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