MECHANICAL COMMISSIONING MANAGER

Mechanical Commissioning Manager

Location: London – Liverpool Street / Hybrid Salary: Up to £110,000 basic Bonus: 20% Benefits: Pension, Healthcare, Travel & Company Benefits Travel: International travel required – no fixed rotation Sector: Data Centres / Mission Critical

We are currently recruiting for a Commissioning Manager – Mechanical Bias to join a major Data Centre Developer / Operator within its Global Technical Operations team.

This is a central, multi-site commissioning position supporting data centre projects from design and pre-construction through construction, commissioning, handover and live operations.

The role will have responsibility for commissioning strategy, technical governance, programme delivery, design assurance, contractor/vendor management, testing, acceptance and operational readiness across a growing data centre portfolio.

The Role

• Lead commissioning strategy, standards and governance across multiple data centre projects.

• Manage integrated commissioning programmes from design review through to handover.

• Provide technical oversight across mechanical building services and critical infrastructure.

• Lead commissioning input during pre-construction, tender and design stages.

• Review designs from a commissionability, maintainability and operational-readiness perspective.

• Manage and coordinate CxA, commissioning contractors, vendors and specialist commissioning teams.

• Lead and witness FAT, SAT and IST activities.

• Oversee L1–L5 commissioning and L6 checklists.

• Manage commissioning documentation, test scripts, test records and commissioning dossiers.

• Drive defect, snag and punch-list close-out through to client acceptance.

• Work closely with Construction, Design, Project Management, Commercial and Operations teams.

• Support live data centre commissioning and asset lifecycle works.

• Ensure operational readiness, O&M documentation and training requirements are completed.

• Drive continuous improvement, lessons learned and standardisation of commissioning processes.

• Provide technical input into resilience, availability and fault-tolerance initiatives.

Experience Required

We are looking for someone with:

• Significant Data Centre Commissioning experience.

• Strong Mechanical Building Services / MEP background.

• Experience across Colocation and Hyperscale Data Centres.

• Strong knowledge of commissioning processes from pre-construction through handover.

• Proven L1–L5 Commissioning / L6 experience.

• Strong FAT, SAT and IST experience.

• Experience managing CxA, contractors and vendors.

• Experience reviewing data centre designs from a commissionability perspective.

• Strong understanding of ASHRAE and relevant international design standards.

• Experience with BMS / Controls and critical mechanical systems.

• Experience with commissioning programmes, ITPs, test documentation and handover.

• Experience working within a matrix organisation.

• Strong stakeholder management and communication skills.

• Willingness to undertake international travel.

• Full driving licence