Commissioning Engineer - Mechanical (CxA)

Overview of Position

Support the planning, coordination and delivery of mechanical commissioning (Cx), ensuring installed heating, ventilation, air conditioning (HVAC) and associated mechanical systems are reviewed and tested against project requirements and design documents.
Work with the owner, contractor and commissioning team to resolve deficiencies, maintain accurate records and support efficient project completion.
Reports to: Commissioning Manager
Primary Responsibilities
Planning and Coordination

Coordinate mechanical commissioning activities between the owner, contractor and commissioning team.
Review and support approval of mechanical commissioning plans in accordance with project guidelines.
Work with team members to develop and complete the commissioning schedule.
Attend commissioning meetings, track progress and act promptly on assigned actions.
Schedule and supervise operational reviews with relevant functional staff.

Site Reviews and Testing

Review mechanical designs, equipment submittals and installed works for compliance with design documents and project requirements.
Supervise on-site mechanical commissioning activities and conduct periodic progress inspections.
Review mechanical system readiness, including records of pressure testing, flushing, cleaning and equipment start-up, before functional testing.
Witness mechanical performance testing, including air and water balancing, operating sequences and controls interfaces, working with specialists to verify results against project requirements.
Review contractor-completed mechanical testing forms to confirm results are appropriately documented and signed off.
Maintain a list of mechanical deficiencies identified during site visits, support their rectification and track retesting to closure.

Documentation and Stakeholder Collaboration

Prepare and maintain commissioning records, including site observations, test results and checklists.
Compile mechanical commissioning report data and maintain clear, up-to-date commissioning records.
Provide required documentation within agreed project timescales.
Collaborate with electrical, controls and other commissioning disciplines to support integrated testing and efficient project delivery.
Contribute to a supportive commissioning team culture and customer satisfaction through adherence to project requirements.

Required Skills – Mechanical

Mechanical/HVAC Inspection: Ability to review installed mechanical and HVAC systems to ensure works are complete, accurate, ready for commissioning (Cx) and compliant with approved designs, specifications and project requirements.
Commissioning & Testing: Oversee and witness mechanical/HVAC commissioning activities, including functional performance testing, ensuring all testing is completed correctly and in line with the overall commissioning schedule.
Technical Verification: Review commissioning test results, including pressure testing, flushing, air and water balancing, equipment start-up and system performance, identifying deficiencies and ensuring compliance with project requirements.
Documentation & Compliance: Verify that all mechanical/HVAC commissioning activities, test results, checklists and associated documentation are accurate, complete and appropriately signed off.
Defect & Punch List Management: Develop and maintain mechanical/HVAC punch lists, prioritise commissioning-critical items and work with contractors to ensure prompt rectification, retesting and closure of outstanding deficiencies.
Technical Knowledge & Coordination: Ability to interpret mechanical drawings, schematics and specifications and coordinate effectively with contractors, engineers and multidisciplinary commissioning teams.
Progress Reporting & Communication: Monitor commissioning progress, maintain accurate records, provide regular updates and escalate technical issues to the Commissioning Manager.