Senior Mechanical Project Manager

Senior Mechanical Project Manager

M25 Corridor | Data Centre | Permanent

Up to £90,000 + car + bonus + private medical

If you're a Senior Mechanical Project Manager who wants to work on a proper data centre new build rather than another standard commercial M&E scheme, this is a strong opportunity.

You’ll be joining the next phase of a major AI-ready data centre campus development, delivering large-scale mechanical infrastructure across a high-density, mission-critical environment.

The first phase of the campus delivered significant IT capacity and the wider development is planned around multiple purpose-built data centres, with the next stage expected to include a new high-capacity data centre building, vertical extensions to existing buildings and upgrades to supporting infrastructure across the site.

This is not a small upgrade job or a basic plantroom package. The project is being built around high-density compute, AI workloads, resilient services, cooling flexibility, energy infrastructure and long-term operational performance. It needs someone who understands how to manage mechanical delivery properly from design coordination and procurement through to installation, commissioning and handover.

You’ll take responsibility for mechanical delivery across a major new-build data centre project.

That means managing programme, technical coordination, procurement, subcontractors, labour, QA, commissioning, client reporting, commercial performance and close-out.

The mechanical package is expected to include critical cooling, chilled water systems, plant rooms, pumps, pipework, valves, ventilation, CRAH / CRAC units, pressurisation, flushing, pressure testing, BMS interfaces, commissioning support and integration with wider campus infrastructure.

The project is expected to require flexibility around advanced air cooling, liquid cooling and hybrid cooling solutions, so previous exposure to high-density or AI-ready data centre environments would be a strong advantage.

You’ll be working closely with the project director, design team, commercial team, construction managers, supervisors, specialist subcontractors, vendors, commissioning teams and client-side representatives to make sure the mechanical package is delivered safely, correctly and to programme.

This is a role for someone who can lead from the front, manage detail and keep the supply chain accountable.

• Managing mechanical delivery across a large-scale data centre new build.
• Taking responsibility for programme, procurement, labour, subcontractors, technical coordination, QA and handover.
• Leading mechanical works across data halls, plant rooms, cooling systems, pipework, ventilation and associated critical infrastructure.
• Coordinating mechanical interfaces with wider campus infrastructure, energy centres, external services, electrical infrastructure and phased building works.
• Working with design, engineering and construction teams to resolve technical issues before they affect site progress.
• Managing subcontractors, supervisors and specialist suppliers across a busy data centre construction environment.
• Reviewing drawings, technical submissions, RFIs, RAMS, inspection records, commissioning plans and handover documentation.
• Coordinating chilled water systems, critical cooling, pumps, valves, pipework, plant, ventilation, BMS interfaces and commissioning requirements.
• Supporting design coordination around high-density cooling, air cooling, liquid cooling or hybrid cooling strategies.
• Keeping tight control of short-term planning, progress reporting, programme risk, cost movement, change and project close-out.
• Supporting commissioning, witness testing, snagging, O&M production and final handover.
• Working closely with the commercial team to manage change, risk, subcontractor performance and project margin.
• Maintaining high standards around health and safety, quality, coordination and site discipline.
• Representing the business professionally with clients, consultants, subcontractors and third parties.

• You’ll need strong mechanical project management experience within data centres, mission-critical projects, major M&E schemes,…