Mechanical Commissioning

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 Lead is responsible for the mechanical commissioning scope from design review through Integrated Systems Testing (IST) and final turnover. This role provides accountability to the Commissioning Authority and Commissioning Manager for mechanical system readiness, testing, documentation, and issue resolution across chilled water, condenser water, heat rejection, air handling, room cooling, ventilation, pressurization, BMS controls, fuel oil, and applicable plumbing and process water systems. The position directs mechanical commissioning engineers and technicians while coordinating mechanical contractors, controls integrators, TAB firms, and OEM representatives throughout the commissioning lifecycle.

Responsibilities:

• Lead the mechanical commissioning process from design review and planning through startup, functional performance testing, Integrated Systems Testing, and final turnover.

• Review mechanical drawings and specifications at the 30%, 60%, and 90% design stages, including flow diagrams, equipment schedules, sequences of operation, points lists, piping and duct layouts, and control diagrams.

• Review mechanical design against the Owner's Project Requirements (OPR) and Basis of Design (BOD), including cooling redundancy, thermal ride-through, concurrent maintainability, design-day capacity, setpoints, and system failure behavior.

• Review sequences of operation to identify gaps, conflicts, system integration concerns, and requirements that cannot be effectively tested during commissioning.

• Identify commissionability gaps including missing test ports, inadequate system isolation, insufficient metering, and limitations affecting load simulation or redundancy testing.

• Develop the mechanical sections of the Commissioning Plan and applicable Division 23 and Division 25 commissioning specifications.

• Define commissioning levels, witness requirements, TAB scope, trend-log requirements, and mechanical documentation deliverables.

• Establish clear responsibilities between TAB, commissioning, and controls integration activities.

• Identify Factory Witness Testing (FWT) requirements for chillers, CRAH/CRAC units, AHUs, pumps, VFDs, cooling towers, dry coolers, and other applicable mechanical equipment.

• Develop and maintain the mechanical commissioning schedule, including flushing, system fill, water treatment, TAB, load simulation, and seasonal testing milestones.

• Attend or coordinate Factory Witness Testing for major mechanical equipment and verify testing against project design conditions and required part-load operating points.

• Witness packaged equipment controls simulation including staging, failure response, alarm mapping, and BMS integration.

• Document factory testing nonconformances and track identified issues through resolution or owner acceptance.

• Review and witness mechanical completion activities including equipment installation, alignment, vibration isolation, piping supports, valve identification, insulation, labeling, and equipment access.

• Verify piping and duct installation against approved drawings, including sizing, valve orientation, strainers, flow direction, expansion provisions, air vents, and drains.

• Witness or review pressure testing, flushing, cleaning, system fill, and initial water treatment activities.

Skills Required:

• Extensive knowledge of mechanical commissioning within mission-critical or data center environments.

• Strong knowledge of chilled water and condenser water systems, cooling plants, heat rejection equipment, CRAH/CRAC systems, AHUs, ventilation, pressurization, fuel oil, and associated mechanical infrastructure.

• Strong understanding of Level 0–5 commissioning processes and system readiness requirements.

• Experience with mechanical design review, Factory Witness Testing, installation verification, startup, functional performance testing, and Integrated Systems Testing.

• Strong BMS and controls knowledge with the ability to interpret sequences of operation, points lists, control logic, graphics, alarms, and trend logs.

• Experience with Testing, Adjusting, and Balancing (TAB) activities and interpretation of air and hydronic balancing reports.

• Ability to read and interpret mechanical drawings, P&IDs, flow diagrams, equipment schedules, control diagrams, and technical specifications.

• Strong understanding of redundancy, concurrent maintainability, thermal ride-through, failure-mode testing, and load simulation within mission-critical facilities.

• Working knowledge of ASHRAE Guideline 0 and Guideline 1.1, ASHRAE TC 9.9 guidance, AHRI performance standards, and NEBB/AABC TAB standards.

• Strong troubleshooting, technical analysis, and issue-resolution capabilities.

• Ability to direct mechanical commissioning engineers and technicians while coordinating contractors, controls integrators, TAB firms, and OEM representatives.

• Strong leadership, stakeholder management, and communication skills.

• Strong commissioning documentation, reporting, and quality control capabilities.

• Ability to coordinate effectively across mechanical, electrical, controls, construction, commissioning, and operations teams.

Education / Licenses / Certifications:

• Bachelor's degree in Mechanical Engineering or related technical field preferred.

• ACG Certified Commissioning Authority (CxA) certification preferred.

• Building Commissioning Association Certified Commissioning Professional (CCP) certification preferred.

• Certified Building Commissioning Professional or equivalent commissioning certification preferred.

• 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

Compensation

Hourly Rate: $[50.00] – $[75.00] USD per hour

The pay range shown reflects the minimum and maximum hourly rates the company may offer for this position. The final rate will depend on factors such as skills, experience, and qualifications.

Monthly Per Diem: $[4000] USD per month

Eligibility for per diem is determined by company policy and applies only under specific circumstances, based on job location and travel requirements.

The pay range shown reflects the minimum and maximum hourly rate the company may offer for this position. The final rate will depend on factors such as skills, experience, and qualifications.

Hourly Rate$50—$75 USD

Eligibility for per diem is determined by company policy and is applicable only under specific circumstances, based on job location and travel requirements.

Monthly Per Diem $4,000—$4,000 USD

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.