VINCI Facilities
Mechanical Engineer
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Mechanical Engineer
Location: London
Contract Type: Permanent
Hours: Full Time - 40 hours - Monday to Friday
Creating and maintaining great places to live and work delivered by excellent people who care…
Purpose of Role
We are seeking an experienced Lead Mechanical Engineer to take ownership of mechanical building services within a high-profile Ministry of Defence (MoD) estate in Whitehall. This role is ideal for a technically strong engineer who thrives in complex, compliance-driven environments and can lead from the front.
Job Description
This is a hands-on leadership role where you will take full technical ownership of mechanical building services across a complex, high-security government site. The role involves managing a diverse range of systems, including aged and legacy infrastructure, critical plant, and compliance-driven assets.
The environment requires a mechanically biased engineer with strong fault-finding ability and practical experience maintaining and improving older plant while ensuring system reliability. You will act as the lead mechanical authority on-site, combining day-to-day operational maintenance with project delivery in a zero-failure, mission-critical environment.
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Key systems include:
- HVAC & environmental systems (AHUs, chillers, pressurisation)
- Water systems (including hygiene & compliance)
- Heating & energy systems
- Fuel storage and associated plant
- A combination of modern and legacy mechanical infrastructure
Ex-military engineers are highly desirable due to transferable engineering and operational experience: Royal Navy | British Army | Royal Marines
Responsibilities
- Take technical leadership of all mechanical systems and projects across the estate
- Deliver Planned Preventative Maintenance (PPM) and reactive maintenance on critical mechanical plant
- Diagnose faults and carry out hands-on troubleshooting of mechanical systems
- Manage, maintain, and improve the performance of legacy and ageing plant
- Ensure compliance with statutory regulations, safety standards, and contractual obligations
- Oversee contractors and specialist service providers for both maintenance and project work
- Prepare technical specifications, reports, and quotations for remedial works and upgrades
- Maintain high standards of health & safety, documentation, and engineering reporting
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Essential Qualifications/Skills
- Strong mechanical engineering background within building services / facilities management
- Experience working with older or legacy plant and infrastructure
- Proven experience in critical environments (defence, healthcare, data centres, or similar)
- Hands-on knowledge of HVAC systems, water hygiene compliance, pumps, valves, and pipework
- Solid understanding of statutory compliance and safe systems of work
Security Requirements:
Candidates must be sole UK nationals eligible for DV clearance; they may start after SC clearance but will be shadowed on-site for approximately six months until DV clearance is granted.
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