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Mechanical Commissioning Engineer Jobs (NOW HIRING)

LotusWorks is seeking a highly skilled Mechanical Commissioning Engineer to oversee commissioning activities on mission-critical and data center projects. This role is responsible for leading the ...

LotusWorks is seeking a highly skilled Mechanical Commissioning Engineer to oversee commissioning activities on mission-critical and data center projects. This role is responsible for leading the ...

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Mechanical Commissioning Engineer information

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$51K

$96.7K

$125.5K

How much do mechanical commissioning engineer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for mechanical commissioning engineer in the United States is $96,653.00, according to ZipRecruiter salary data. Most workers in this role earn between $87,000.00 and $108,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Mechanical Commissioning Engineer, and why are they important?

To thrive as a Mechanical Commissioning Engineer, you need a strong background in mechanical engineering principles, system integration, and commissioning processes, often supported by a relevant engineering degree and professional certifications. Familiarity with commissioning management software, HVAC and BMS systems, and industry standards like ASHRAE is typically required. Strong problem-solving, communication, and project management skills help you coordinate effectively with multidisciplinary teams and address onsite challenges. These skills ensure safe, efficient, and compliant operation of mechanical systems during project handover, minimizing risks and delays.

What is the difference between Mechanical Commissioning Engineer vs Mechanical Maintenance Engineer?

AspectMechanical Commissioning EngineerMechanical Maintenance Engineer
CredentialsEngineering degree, certifications in commissioning or project managementEngineering or technical diploma, certifications in maintenance or equipment repair
Work EnvironmentPre-commissioning, start-up, and testing of new systemsOngoing maintenance, troubleshooting, and repair of existing equipment
Employer & IndustryConstruction, industrial plants, energy projectsManufacturing, facilities management, industrial plants

The main difference is that Mechanical Commissioning Engineers focus on testing and starting up new mechanical systems, ensuring they operate correctly before handover. Mechanical Maintenance Engineers, on the other hand, maintain and repair existing systems to ensure continuous operation. Both roles require technical skills and certifications but serve different stages of the equipment lifecycle.

What does a Mechanical Commissioning Engineer do?

A Mechanical Commissioning Engineer is responsible for ensuring that mechanical systems in buildings or industrial facilities are installed, tested, and functioning according to design specifications and safety standards. They oversee the commissioning process, which includes reviewing designs, inspecting installations, conducting tests, and troubleshooting any issues. Their work ensures that all mechanical equipment, such as HVAC, plumbing, and other systems, operate efficiently and safely before the facility is handed over to the client.

What are some common challenges faced by Mechanical Commissioning Engineers during project handover, and how can they be addressed?

Mechanical Commissioning Engineers often encounter challenges such as incomplete documentation, last-minute design changes, and coordination issues between different trades during project handover. Addressing these challenges requires proactive communication with project managers, thorough documentation throughout the commissioning process, and early involvement in project meetings. Staying organized and developing checklists for system validation can help ensure all mechanical systems meet performance specifications before handover, resulting in a smoother transition to operations.
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Infographic showing various Mechanical Commissioning Engineer job openings in the United States as of July 2026, with employment types broken down into 100% Full Time. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $96,653 per year, or $46.5 per hour.
Mechanical Commissioning Engineer

$135/day

Per diem

Posted 3 days ago


Job description

On Grid Infrastructure Services is seeking a qualified and experienced Mechanical Commissioning Engineer for an on-site position. The position is set to commence the 1st week of August and is expected to last around 6 months. Project Name: LG&E Mill Creek Location: Louisville, KY Position Required: Mechanical Commissioning Engineer Start Date: August 2nd Project Duration: Approximately 6 months Job Description Summary The Mechanical Commissioning Engineer ensures planning, preparation, and execution of the commissioning, operation, trial run, and acceptance testing for Water-Steam-Cycle and BOP systems in Combine Cycle Power Plants. Roles and Responsibilities • Responsible for cold and hot commissioning of the Water-Steam-Cycle and BOP systems and process of Combined Cycle Power Plants (CCPP): - Takeover of the systems from construction - Correctness and completeness of loop checks and instrument calibration/adjustment - Flushing of systems, function group start up, and adjustments - Water steam cycle system cleaning, blow out, and restoration - Water steam cycle system and steam turbine start up in manual and automated control mode, part load, and base load adjustment, and tuning • Preparation and execution of plant tests and performance tests and reliability run • Ensure that all activities are carried out in accordance with the site EHS plan requirements and specifically defined safe systems of work • Coordinate the contractual tests with customer, adequacy with contract, turnover to customer without defects, follow-up of punch list items • Manage, assess, supervise, support and promote the commissioning and other personnel assigned to him/her • Accept the turnover of systems from construction to commissioning and execute the turnover from commissioning to the customer in accordance with current procedure/work instruction and the contract • Manage, perform, coordinate and monitor the commissioning of systems specified within the scope of work according to time schedule and contract and by arrangement with the Commissioning Manager, project management and customer • Ensure the project milestone are achieved on time and within the budget cost • Respect project milestones and provide information to the Commissioning Manager to assist in their realization • Provide update information to the Commissioning Manager for reporting purposes, for the commissioning system time schedule and commissioning staff planning • Support and train the Commissioning Engineers assigned to him/her • Train the customer staff in operation and maintenance as instructed by the Commissioning Manager to coordinate adequacy of as-built systems with commissioning documentation, put under fluid, under voltage, and control of results in the respect of the GE process • Participating in daily and weekly commissioning meetings on site • To identify and analyze technical problems, observe for defects, and find solutions, ask for adequate technical support, report problems • To follow-up with non-conformities, cost analysis, and as-built documentation Required Qualifications o Bachelor's degree from an accredited university or college or a high school diploma o Commissioning experience and strong knowledge of the mechanical BOP equipment and the Water-Steam Cycle process of Combined Cycle Power Plant (CCPP) o Knowledge in of power plant principles and work processes of EPC environments o Driving License Desired Characteristics o Excellent communication and interpersonal skills. Able to work with large complex project team reviews as well as to simplify complex messages o Resilient and the ability to work under pressure o Fluency in written and spoken English o Experience of working with international teams and complex environment and open for travel o Experience in Extension of time claims / forensic planning Please note for this project per diem is set at $68/day for meal and incidentals, and the maximum daily expense for hotel is $135/day