Commissioning Engineer - Mechanical

Due to the continuing success and growth of our AESG team, a fantastic opportunity has opened up at our award-winning Specialist Consultancy, Engineering and Advisory Firm.

We are headquartered in London, Riyadh, Singapore and Dubai, Cape Town, Cairo & Sydney working throughout the Middle East, Europe and Asia. Our areas of expertise are represented in four core verticals: Building Engineering, Planning and Infrastructure, Strategy and Advisory and Commissioning, Handover and Asset Management.

We pride ourselves in being leaders in the industry in each of the services that we offer. We have one of the largest dedicated team with decades of cumulative experience in sustainable design, fire and life safety, cost management, façade engineering, commissioning, building performance, waste management, environmental consultancy, carbon management and acoustics.

Job Purpose

• As part of a multi-discipline project team representing AESG, conduct site inspections and verify the tested results are correct.
• Provide support to the project by delivering commissioning services in line with the high-standards clients of AESG have come to expect.
  
  

• BSc Mechanical Engineering
• BSc Electrical Engineering
• BSc Building Services Engineering
  
  

• HNC, HND or equivalent
  
  

• ONC, OND or equivalent
  
  

• Minimum 5 years of job-related experience + Engineering degree
• Minimum 6 years of job-related experience + college diploma
• Minimum 7 years of job-related experience + college or Trade Certificate
  
  

• Incorporated Engineer, desirable but not essential
• CSA Grade 4 qualifies, desirable but not essential
• Commissioning certification such as BCA, ACG or NEBB, desirable but not essential
  
  

• Significant experience and advanced competencies.
• Able to work independently on complex tasks.
  
  

• Carry out site inspections and witness testing of mechanical systems including chilled water systems, HVAC equipment, AHUs, FCUs, CRAH/CRAC units, cooling towers, pumps, ventilation systems, plumbing, public health, fire protection systems, and associated equipment where applicable.
• Review drawings, sequences of operation, equipment schedules, method statements, testing procedures, and commissioning plans to ensure compliance with project specifications, applicable codes, and industry standards (CIBSE, ASHRAE, BSRIA, etc.).
• Verify installation readiness, including pipework, supports, insulation, labelling, accessibility, maintainability, and system completeness prior to testing.
• Witness and verify pre-commissioning activities including pressure testing, flushing, cleaning, water treatment, equipment start-up, and system readiness inspections.
• Validate system performance by reviewing flow rates, temperatures, pressures, control sequences, setpoints, TAB results, and equipment operation against design intent.
• Coordinate with contractors, TAB specialists, controls/BMS engineers, OEM vendors, and other stakeholders to plan testing activities, resolve technical issues, and ensure system readiness.
• Monitor commissioning progress, maintain commissioning trackers, deficiency logs, and readiness reports, and support programme delivery.
• Prepare high-quality site observation reports, commissioning records, technical comments, non-conformance reports, and punch lists.
• Participate in commissioning meetings, technical workshops, and coordination sessions, providing input on system readiness, technical risks, and programme constraints.
• Support functional performance testing, integrated systems testing, and verification of mechanical system interfaces with electrical, controls, fire protection, and life safety systems where applicable.
• Review TAB reports, water quality results, O&M manuals, as-built documentation, training records, and handover documentation prior to project completion.
• Ensure all commissioning activities are carried out in accordance with project procedures, health and safety requirements, quality standards, and industry best practice while representing AESG professionally in all project interactions.