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Senior Mechanical Design Engineer
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Senior Mechanical Engineer – Data Centres
About The Role
An international engineering consultancy is seeking a Senior Mechanical Engineer to support the delivery of technically complex, mission-critical data centre projects. This role is ideal for an experienced building services engineer who enjoys leading design packages, supporting junior engineers, and working closely with clients and multidisciplinary teams.
You will play a key role in delivering high-performance mechanical systems that prioritise reliability, resilience, and operational efficiency across the full project lifecycle.
Key Responsibilities
- Lead the mechanical design scope on large and technically demanding data centre projects
- Deliver and review detailed mechanical designs including HVAC, chilled water systems, CRAC/CRAH units, ventilation, controls, and fire protection
- Act as a senior technical point of contact for clients, contributing to design assurance and value engineering
- Coordinate with electrical, structural, architectural, and specialist disciplines to ensure integrated design solutions
- Chair and contribute to design and project meetings
- Mentor and support junior engineers, reviewing work and providing technical guidance
- Ensure designs comply with Uptime Institute Tier standards, ASHRAE guidelines, and applicable codes and regulations
- Monitor design delivery against programme, budget, and change control requirements
- Produce high-quality reports, specifications, and technical documentation
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About You
- Degree-qualified in Mechanical or Building Services Engineering, or equivalent
- Strong experience in mechanical building services design, ideally within mission-critical environments such as data centres, healthcare, or high-tech facilities
- Extensive knowledge of HVAC design and a solid understanding of controls, monitoring systems, and fire design
- Confident leading design packages on fast-paced, technically complex projects
- Familiar with tools such as Revit, AutoCAD, IES VE, and CFD software
- Strong communication skills with a collaborative, client-focused approach
- Member of a relevant professional body (e.g. CIBSE, IMechE), with Chartered status achieved or in progress
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What’s On Offer
- Exposure to large-scale data centre and mission-critical projects
- Supportive, technically focused environment with clear development pathways
- Access to structured CPD, chartership support, and global technical expertise
- Competitive salary and comprehensive benefits package, including bonus, pension, healthcare, and flexible working
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