Associate / Senior Associate Mechanical Engineer (Data Centres and Mission Critical)

Hoare Lea; Greater London; Hybrid; GBP 65,000 - 95,000; Full time

Benefits offered by this job

Private medical cover

EV salary sacrifice scheme

Stock options

25 days of annual leave (increasing on

Flexible and hybrid working

Job summary

Hoare Lea is seeking an Associate/Senior Associate Mechanical Engineer to join the Data Centre & Mission Critical (MCDC) team in a hybrid role. You will lead mechanical design for data centre projects, work with design teams and clients, and deliver reports, specifications and guidance across the UK, Ireland and Europe.

You will mentor engineers and graduates, support site appraisals and feasibility studies, and oversee plant design, commissioning and operational optimisation within a

Qualifications

• Proven experience delivering mission-critical and data-centre projects.
• Strong knowledge of HVAC, chilled water, refrigerant systems, cooling plant.
• Experience with Revit, BIM workflows and AutoCAD.
• Excellent client-facing consultancy experience.
• Mentoring and developing engineers, apprentices and graduates.

Responsibilities

• Lead mechanical design delivery for data centre and mission-critical projects.
• Act as a senior client-facing engineer across design teams and stakeholders.
• Prepare and review specifications, reports and technical deliverables.
• Support strategic site appraisals, feasibility, masterplanning and test-fit studies.
• Oversee plant design, commissioning, handover and operational optimisation.
• Support fee, resource and project delivery management.
• Mentor and develop engineers, apprentices and graduates.

Skills

HVAC systems

Chilled water

Refrigerant systems

Cooling plant

Air distribution

Heat rejection

Revit

BIM workflows

AutoCAD

Client-facing

Mentoring

Tools

Revit/BIM

AutoCAD

Job description

About Us

Hoare Lea is a human-centric and planet-conscious engineering consultancy. We offer intelligent and sustainable solutions to complex design challenges for the built environment throughout the UK and further afield.

Hoare Lea is a human-centric and planet-conscious engineering consultancy. We offer intelligent and sustainable solutions to complex design challenges for the built environment throughout the UK and further afield.

We provide a wide range of engineering and consultancy services, including acoustics, air quality, building services (MEP), fire, lighting, security and sustainability to name but a few. Together, our highly skilled teams use technical expertise and problem-solving skills to bring buildings to life. We ensure that whatever the building, its design is outstanding, and its operations meet the needs of the communities it serves.

We are as committed to providing an environment where everyone can realise their unique potential. So, in joining Hoare Lea, you will experience a business that enriches your knowledge, supports your wellbeing, and welcomes your individuality. You’ll have the opportunity to participate in our 9-day fortnight scheme, thriving community groups, varied social and networking events, and extensive professional and technical development schemes.

• 9-day fortnight scheme
• thriving community groups
• varied social and networking events
• extensive professional and technical development schemes
• private medical cover
• an electric vehicle salary sacrifice scheme
• stock options
• 25 days of annual leave (increasing with service)
• flexible and hybrid working

Whatever your ambitions or circumstances, our aim is to enable everyone to develop their knowledge, give their best, and enjoy what they do.

About The Role

We have an exciting opportunity for an Associate / Senior Associate Mechanical Engineer to join our Data Centre & Mission Critical (MCDC) team at Hoare Lea.

Data centres are central to the modern economy and the technology that powers them is evolving rapidly. Our Mission Critical team helps clients navigate these changing requirements. At Hoare Lea you’ll gain a truly unique experience working across the full spectrum of the data centre sector — from early-stage site appraisal, master planning and feasibility studies through detailed plant and HVAC design, live plant upgrades, test-fits, commissioning and operational optimisation.

You’ll work across close-control environments, data halls, live plant replacement and refurbishment, critical engineering and due-diligence reviews of existing facilities. Projects span mainly in UK, but also across Ireland and Europe.

You will join a collaborative, knowledgeable and highly engaged team with a positive, supportive and flexible culture. Working alongside the Project Leader, you will engage directly with clients, develop designs and produce reports, specifications and guidance, and support testing and commissioning activities to deliver consistent, high-quality outcomes.

In This Key And Varied Role You Will

• Lead mechanical design delivery for data centre and mission-critical projects.
• Act as a senior client-facing engineer across design teams and stakeholders.
• Prepare and review specifications, reports and technical deliverables.
• Support strategic site appraisals, feasibility, masterplanning and test-fit studies.
• Oversee plant design, commissioning, handover and operational optimisation.
• Support fee, resource and project delivery management.
• Mentor and develop engineers, apprentices and graduates.

About You

• Proven experience delivering mission critical and data centre projects.
• Strong knowledge of HVAC, chilled water and refrigerant systems, cooling plant, air distribution and heat rejection.
• Experience with Revit, BIM workflows and AutoCAD.
• Strong client-facing consultancy experience.
• Excellent technical judgement and a collaborative mindset.
• Experience mentoring and supporting others.

Desired Specialist Experience

• Mission-critical and data centre mechanical engineering across new-build, live operational upgrades, technical due diligence, feasibility studies and test-fits.
• Large-scale, multi-megawatt data centre developments.
• Hyperscale, colocation and enterprise/research environments.
• Early-stage site appraisal, masterplanning and test-fit studies.
• Cooling infrastructure and heat-rejection options.
• Resilience and uptime design thinking.
• High-density and AI-ready cooling.
• Live operational environments and phased upgrades.
• Campus-scale developments and multidisciplinary coordination.
• Energy efficiency and sustainability in mission-critical design.
• Experience working across the UK; international experience is desirable.

Adjustments and accommodations

If there are adjustments or accommodations that we can put in place to help you participate and give your best at any stage of the recruitment process (whether relating to disability, neurodivergence or anything else) please let us know.

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