Job Description

Senior Data Centre Mechanical Engineer

(Mechanical Engineer / Critical Facilities Engineer / HVAC & Cooling Systems SME)

Location:

London (UK), Paris or Frankfurt (Europe) - extensive European travel (50-70%)

Salary:

Circa 90,000 basic + Bonus & Excellent Benefits package (subject to experience)

The Opportunity

As a leading global data centre developer, we are seeking a Senior Data Centre Mechanical Engineer to join the expanding European Construction team. This is a senior, high-impact role where you will act as the Mechanical Subject Matter Expert (SME) across major hyperscale projects, delivering resilient, energy-efficient, and scalable mechanical systems for mission-critical data centre facilities.

The Role

As Senior Data Centre Mechanical Engineer / Mechanical SME, you will:

Lead design, installation, testing, and commissioning of mechanical systems for hyperscale data centres. Oversee systems such as HVAC, chillers, cooling towers, air-handling units (AHUs), fire suppression, and fuel delivery systems. Provide technical leadership, acting as the Mechanical SME, ensuring compliance with safety, reliability, energy efficiency, and operational standards. Conduct design reviews, factory witness testing, and commissioning oversight to validate critical equipment performance. Advise on redundancy, maintainability, and scalable mechanical infrastructure solutions. Act as a trusted advisor to contractors, consultants, stakeholders, and tenants across all project phases. You will be based either in or around London (UK wide also considered), Paris or Frankfurt, with extensive travel to European Projects

Key Requirements

Extensive experience in mechanical systems for critical facilities, including data centres, semiconductors, pharmaceutical plants, or large-scale industrial environments. Expertise in HVAC systems, chillers, cooling towers, AHUs, and fire suppression systems. Proven track record delivering and commissioning mechanical systems for complex infrastructure projects. Strong understanding of European building codes, safety regulations, and energy efficiency standards. Excellent communication, stakeholder management, and problem-solving skills. Willingness to travel extensively across Europe (50-70%).

Desirable Qualifications

Degree in Mechanical Engineering, Building Services, or Construction Management. 7+ years' experience in mechanical systems design or delivery for data centres or industrial-scale facilities. Professional certifications such as CEng, LEED AP, or ASHRAE.

What's on Offer

Senior leadership role within a global data centre developer. Opportunity to work on Europe's most exciting hyperscale data centre projects. Circa 90,000 basic salary (subject to experience) Bonus scheme. 25 days holiday + statutory days & additional Christmas shutdown. Death in service x 3 salary. Private healthcare for you and your family. Dental and optical care. Pension scheme. Income protection insurance. Long-term career progression in one of the fastest-growing global industries.
Job Types: Full-time, Permanent

Pay: 80,000.00-100,000.00 per year

Benefits:

Additional leave Company pension Health & wellbeing programme Life insurance Private dental insurance Private medical insurance Sick pay Work from home
Work Location: Hybrid remote in Slough SL1 4QA