Senior Mechanical Commissioning Lead

TLG Infrastructure Limited; Greater London; On-site; GBP 85,000 - 100,000; Full time

Job summary

TLG Infrastructure Limited is seeking a Mechanical Commissioning Manager to lead commissioning across our growing project portfolio in London. The role covers planning through to handover, coordinating with site teams, consultants, and subcontractors to keep testing on programme.

You will oversee testing, plant start-up, BMS integration, and client handovers, bringing a strong track record in mechanical building services commissioning on sizeable projects.

Qualifications

• Requires a relevant mechanical qualification.
• Minimum five years' experience as a Commissioning Manager (Cx Manager).
• Experience managing mechanical building services commissioning on sizeable projects from planning to handover.
• Strong understanding of mechanical testing, BMS and controls, and life-safety interfaces.
• Experience coordinating specialist subcontractors and managing consultant and client witnessing.
• Ability to manage commissioning programmes, spot risks early and drive defects to close-out.
• Residential, commercial or mission-critical project experience is desirable.

Responsibilities

• Develop commissioning plans, programmes and trackers, chair readiness meetings and flag risks to key milestones.
• Inspect mechanical installations against project specs and close out defects before testing.
• Manage and witness mechanical pressure testing and coordinate flushing, cleaning and water treatment.
• Oversee plant start-up, testing, and coordinate consultant/client witnessing.
• Coordinate BMS and controls commissioning, including point-to-point checks and system integration.
• Collaborate with life-safety specialists on wet risers, sprinklers and smoke extract systems; review RAMS and testing procedures.
• Manage commissioning records, certification, final reports, and assist with O&M manuals and handover demos.

Skills

Commissioning management

BMS & controls

Risk management

Client liaison

Defect resolution

Subcontractor coordination

Project planning

Education

Mechanical qualification

Tools

BMS systems

Job description

TLG Infrastructure Limited is seeking a Mechanical Commissioning Manager to lead commissioning across our growing project portfolio in London. The role covers planning through to handover, coordinating with site teams, consultants, and subcontractors to keep testing on programme.

You will oversee testing, plant start-up, BMS integration, and client handovers, bringing a strong track record in mechanical building services commissioning on sizeable projects.