Mechanical Commissioning Engineer
- Level
- Mid
Not stated in the posting: salary, work type, visa.
Open. First seen 2 October 2026.
About the role
LotusWorks's standard text
LotusWorks is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of work within global manufacturing facilities. LotusWorks operates globally across EMEA and North America partnering with the world's leading manufacturers across the Semiconductor, Pharmaceutical & Biologics, Medical Device and Data Center sectors. Our team of Engineering and Technical professionals is immersed in cutting-edge technologies and innovations.
LotusWorks is committed to a diverse and inclusive workplace, integral to our people-first approach.
The Mechanical Commissioning Engineer is responsible for representing the general contractor in planning and executing commissioning activities within semiconductor or mission-critical facilities. This role works closely with construction, controls, quality, safety, and operations teams to ensure systems are installed, tested, and turned over in accordance with design intent, client standards, and regulatory requirements.
Responsibilities:
- Review design documents, specifications, P&IDs, isometrics, equipment submittals, and control narratives to build the commissioning database.
- Lead and manage commissioning activities for process mechanical, exhaust, and dry utility systems from pre functional checks through system startup, functional testing, and turnover.
- Develop and review commissioning plans, procedures, and checklists for:
- Process Piping Systems (Oil Free Air, Process Cooling Water)
- HVAC Systems (Exhaust, Supply Air, Hydronic Piping)
- Industrial Wastewater / Ultra Pure Water Systems
- Automated valves, dampers, and control devices
- Perform field walkdowns and verification inspections to confirm installation completeness, cleanliness, labeling, and safety compliance.
- Coordinate and support equipment startup with trades and vendors.
- Track, document, and manage commissioning issues, deficiencies, and punch list items to ensure timely resolution.
- Maintain accurate commissioning documentation, including test results, redlines, as built verification, and turnover packages.
- Participate in startup readiness reviews, cutover planning, and transition to operations.
- Enforce EHS, LOTO, and safe commissioning practices, especially when working with hazardous exhaust systems.
- Provide commissioning status updates and technical input during client and project meetings.
- Any other duties or responsibilities that may be assigned to you in your role.
Skills Required:
- 3+ years of experience in mechanical commissioning, startup, or systems testing within semiconductor fabs, data centers, or industrial facilities.
- Strong knowledge of process mechanical systems, HVAC, and system integration in semiconductor or mission critical environments.
- Understanding of airflow dynamics, pressure control, redundancy, and exhaust safety principles.
- Ability to read and interpret P&IDs, isometrics, control diagrams, BIM models, and specifications.
- Familiarity with controls integration, sensors, actuators, and FMCS/BMS interfaces.
- Strong troubleshooting, documentation, and communication skills.
- Comfortable working in active construction and commissioning environments.
- Experience working in cleanroom or high purity environments.
Education / Licenses / Certifications
- Bachelor's degree in Mechanical Engineering/Facilities Engineering, Process Engineering is strongly preferred, but not required
- Proof of education, licenses, and certifications will be required where applicable.
Benefits:
- Medical, Dental and Vision Insurance
- Life, Short-Term, Long-Term Disability Insurance
- Training and Education Assistance
- 401k Retirement Plan
- Extra Annual Leave with Years of Service
- Maternity/Paternity Leave
- Recognition Rewards
LotusWorks's standard text
LotusWorks is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to creating a diverse and inclusive workplace where all employees feel valued, respected, and empowered.
What this role asks for
78% of this description is written for the role. The rest is LotusWorks's standard text, folded away below.
Read against LotusWorks's other open postings on this site.
The team: Commissioning - Semiconductor HIRES STEADILY
This role is one of 11 open in Commissioning - Semiconductor. 1 was posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Microsoft 365 (1 of 11), PLC (1 of 11)
OTHER ROLES ON THIS TEAM
- Senior Operations Manager – Semiconductor Accounts (U.S.) posted Sep 22
- Life Safety Systems Commissioning Technician posted Sep 16
- Waste Systems Commissioning Engineer posted Aug 28
- Electrical Commissioning Engineer posted Aug 26
- CSA Commissioning Engineer posted Aug 25
- Senior Facilities Engineer (Commissioning & Startup) posted Jul 31
- CSA Commissioning Engineer posted Jul 6
- Quality & Commissioning Engineer posted May 19
- Mechanical Commissioning Engineer posted Apr 6
- Electrical Commissioning Technician - Medium Voltage Systems posted Mar 23
From the team and dates on LotusWorks's own job board.
Other openings for this role
2 open postings for this role in Chandler, Arizona, United States, first posted 2 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 2 October 2026 – open
- 2 October 2026 – open (this posting)
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