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Mechanical Completion Engineer Jobs (NOW HIRING)

MHI

TFA II, Mechanical

Lake Mary, FL · On-site

Ensure timely documentation and sign-off of erection packages, completion checksheets, and ... Bachelor's degree in Mechanical Engineering or equivalent power plant construction experience.

Wood Plc

Turnover Manager

Houston, TX

Populate CMS database from engineering deliverables and track project status through the use of ... Mechanical Completion and ready for start-up processes. CRITICAL SAFETY RESPONSIBILITIES: Be ...

JLL

Building Systems Engineer (Fixed Term)

Juncos, PR · On-site

The Building Systems Engineer (Fixed Term) role will serve as client's primary point of contact for ... Support mechanical completion activities and generate related Maximo Child Work Orders. * Approve ...

INA Solution Inc

Mechanical Engineer

Carrollton, TX · On-site

Mechanical Engineer Location: Carrollton, TX Duration: 4-6 months Experience: 5-10 Years About the ... Perform testing of Oil & Gas completion tools , including packers and sand/flow control tools

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Mechanical Completion Engineer information

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$45.5K

$102.9K

$166.5K

How much do mechanical completion engineer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for mechanical completion engineer in the United States is $102,878.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,500.00 and $126,500.00 per year, depending on experience, location, and employer.

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

To thrive as a Mechanical Completion Engineer, you need a solid background in mechanical engineering, experience with commissioning processes, and a relevant engineering degree or certification. Familiarity with project management software, completion management systems (CMS), and industry standards such as ASME or API is typically required. Strong attention to detail, problem-solving skills, and effective communication are vital soft skills for coordinating multidisciplinary teams and ensuring quality standards. These skills are crucial for delivering projects on time, verifying system integrity, and ensuring safety and compliance during the handover phase.

What are the main challenges Mechanical Completion Engineers face when coordinating with multiple stakeholders on large projects?

Mechanical Completion Engineers often work on complex projects involving multiple contractors, suppliers, and internal teams. One common challenge is ensuring that all parties are aligned with project timelines and quality standards, as delays or miscommunication can impact the overall completion schedule. Effective communication, strong organizational skills, and proactive issue resolution are essential for managing documentation, punch lists, and handover processes. Collaborating closely with commissioning teams and construction managers also helps to identify and resolve issues early, ensuring a smooth transition to the next project phase.

What does a Mechanical Completion Engineer do?

A Mechanical Completion Engineer is responsible for ensuring that all mechanical systems and components of a project are installed, tested, and completed according to specified standards before commissioning begins. They oversee inspections, coordinate with different teams, and verify that construction meets design and safety requirements. Their role is crucial in identifying and resolving any technical issues that could impact project delivery or operation. Mechanical Completion Engineers also document compliance and facilitate the handover process to operations or commissioning teams.

What is the difference between Mechanical Completion Engineer vs Mechanical Supervisor?

AspectMechanical Completion EngineerMechanical Supervisor
Primary RoleEnsures mechanical systems are completed, tested, and ready for commissioningOversees daily mechanical work, manages teams, and ensures safety and quality during construction
CertificationsMechanical engineering degree, relevant certificationsMechanical trade certifications, supervisory training
Work EnvironmentProject sites, commissioning phasesConstruction sites, workshop environments
ResponsibilitiesVerification of completion, punch list clearance, documentationSupervising mechanical crews, safety compliance, work planning

The Mechanical Completion Engineer focuses on verifying that mechanical systems are completed and ready for startup, while the Mechanical Supervisor manages daily construction activities and team supervision. Both roles require mechanical certifications and work closely within the same industry environment, but their responsibilities differ in scope and focus.

More about Mechanical Completion Engineer jobs
What cities are hiring for Mechanical Completion Engineer jobs? Cities with the most Mechanical Completion Engineer job openings:
What job categories do people searching Mechanical Completion Engineer jobs look for? The top searched job categories for Mechanical Completion Engineer jobs are:
Mechanical Completion Engineer jobs near you
Infographic showing various Mechanical Completion Engineer job openings in the United States as of May 2026, with employment types broken down into 98% Full Time, 1% Part Time, and 1% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $102,878 per year, or $49.5 per hour.

Battery Storage Commissioning Engineer

ANS

Columbus, OH • Remote

Full-time

Posted 20 days ago

Job description

At ANS, we’re not just a consulting engineering firm—we’re a team of trailblazers shaping the future of multi-disciplinary engineering. Recognized as one of the Best Places to Work and Top 10 Hottest Engineering Firms in the US by Zweig Reports, and featured in Inc. 5000’s Top 250 for our staggering 1,748% growth, we’re proud of what we’ve built and where we're headed. 
 
We’re allergic to bureaucracy, thrive on innovation, and embrace data-driven decisions. If you love collaboration, creativity, and a fast-paced environment, we might just be your perfect match! 
 
Our team includes professionals licensed in over 20 states, with more than 70 years of collective experience. We pride ourselves on fostering a collaborative and supportive work environment that encourages growth and professional development. 
 
ANS has quickly become a major player in solar energy, battery storage, and broader renewable energy engineering space. The company offers a comprehensive suite of services, covering project development, engineering, procurement and construction, operations and maintenance, financing, and M&A. ANS aims to redefine the conventional relationship between engineers and clients, prioritizing agility, collaboration, and a deep understanding of client challenges.
Specializing in design analysis, detailed engineering, and development support for solar and energy storage projects across the United States, the company, while historically focused on geotechnical and electrical engineering, is further diversifying into the entire value stream of Renewable Development.
ANS has differentiated itself through a highly customer-centric approach to their services; this is evident in their high customer retention, ability to command some of the highest premiums in the market, and market penetration of ~15% despite being a relatively lean team.
 
Overview:
 
Commissioning is the intersection of design, construction, and manufacturing so an incredibly fun and challenging phase of the project. Utility scale battery projects require 4-8+ months of testing before safe and reliable operation on the grid. As a Commissioning Engineer at ANS, you will be leading and ensuring project design and construction is meeting all contractual, code and local requirements. Completion of this review and sign off ensures clear mechanical completion and the project is ready for energization and testing. To define success for the project we must evaluate the metrics from the owner and performance required for market operation. Operating within our Owners Engineering team, you will be leading the project through the commissioning process. Stakeholders include utilities, contractors, engineers, manufacturers, owners, and a variety of other parties. You will coordinate and lead commissioning activities, so the project achieves sync with the grid and is participating in markets. To ensure commissioning success the candidate must develop comprehensive test plans, keep organized and detailed notes, and address any challenges head on.
Qualifications and Skills
  • Degree in Engineering, Computer Science, or equivalent experience.
  • 1+ year of commissioning experience with an engineering degree, or 3+ years without.
  • Knowledge of relevant codes and standards for energy storage systems and inverters.
  • Strong understanding of plant controls and communication systems.
  • Experience in construction, commissioning, and analytical problem-solving.
  • Excellent communication skills, both written and verbal.
  • Commitment to safety protocols and industry standards.
  • Ability to delegate and collaborate effectively within a team.
Core Duties
  • Communicate clearly with our client who is the Owner and operator of these projects.  The main duty is to serve the owner’s best interest.  Ensure the equipment purchased meets specifications, the project is built to approved design, the project meets interconnection requirements to operate on the grid, and lastly the project meets or exceeds the quantities being sold from the project (energy, capacity and ancillary services).
  • Provide responses to close out the construction of the project by supporting the EPC and contractors to deem the project mechanically complete and substantial completion.  This is completed through an onsite inspection and review and confirmation of all EPC testing.
  • Prioritize and lead the team in which testing comes first to ensure a safe and on time project.
  • Lead Reoccurring meetings with all stakeholders including the owner, EPC, vendors, engineers, utility and others.  Bi-weekly meetings in the early phase of the project to daily POD meetings during the testing phase.
  • Complete key testing deliverables.  Examples are project efficiency and capacity tests, Master test plan, and interconnection testing results including AVR, Reactive 4-Quad, PFR tests with appropriate plan, inputs, and results.
  • Provide detailed review of all projects Mechanical and substantial completion tests from the EPC or contractor. This will include reviewing Fall of potential grounding tests, VLF cable testing, Insulation resistive testing, Thermography, IV Curve test, Transformer FAT and onsite tests, and inspection of the construction milestones of Mechanical and Substantial completion. If results do not meet the owner’s technical spec or standards the OE team will recommend and observe remediation is complete.
  • Lead interconnection testing with the utility to witness, record and pass utility energization and sync testing.  Examples are reactive four quad testing, automatic voltage regulation, power frequency regulation and not violating the interconnection limits on maximum capacity and ramp rate.
  • Each project goes through dozens of tests. It is the job of the owners’ engineer to witness and provide guidance and support for passing each test.  Typically, projects require multiple re-tests and rarely pass on your first few tries. So, a big part of the job is prioritizing time and resources to get appropriate testing, tuning and re-testing until all requirements are met.  Example test plan is on the table below.
  • Travel is required for this position, which must be ok with approximately 10 days out of every month during the commissioning period of the project.  Example trips would be to visit the site to witness energization, a trip to troubleshoot reactive power testing, or travel to a vendor factory to observe acceptance testing.
  • Workflow consists of weekly internal team meetings to discuss project plans, professional development, training and industry issues related to safety, new technology, and standards.  External team meetings are set up weekly to daily with the larger project team and are used to effectively manage the project to complete testing on schedule. Time spent in between internal and external meetings will be used to observe, witness and record the testing results and communicate that to the owner, EPC, utility and your internal team.  Issues and RFI’s will come up and the owners engineer must respond immediately to items that can hold back testing to ensure the project stays on schedule.
  • Manage different login portals for the site. VPN access to the site substation and HMI.  Use your remote access to the data historian, HMI and telemetry to troubleshoot issues around data quality and compliance.  Candidate must learn and eventually be proficient with the use of SCADA systems provided by the battery vendor, inverter vendor, O&M, SCADA vendor, and others.  This is key to project commissioning and achieving commercial operations.
Benefits: 
  • 401(k) + company match 
  • Health, dental, and vision insurance 
  • Life insurance 
  • Unlimited PTO
  • Professional development assistance 
  • Bonus opportunities 
  • Supportive, growth-oriented team environment 
  • #LI-ANS
Why Join ANS? 
 
Work on high-impact projects that shape communities and the environment. 
Be part of a team that values collaboration, mentorship, and professional growth. 
Gain hands-on field experience while developing technical and project management skills. 
Enjoy a supportive workplace culture that encourages innovation and creative problem-solving. 
Take advantage of career development opportunities, including continuing education and industry involvement. 

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.