Senior / Principal Mechanical Engineer (Data Centres) in London, Greater London, United Kingdom presso Arup

Job Title - Senior / Principal Mechanical Engineer ( Data Centres)

Location - London

Joining Arup

Arup’s purpose, shared values and collaborative approach has set us apart for over 75 years, guiding how we shape a better world.

We are an independent firm, owned in trust by our employees. The projects we work on are chosen so that we can make a positive difference in the world. This may be as a direct output of the project or where we can influence our client’s direction in a beneficial way. Arup’s independent ownership model fosters a unique culture built on collaboration, innovation, and long-term thinking. Team members benefit from a supportive environment that encourages personal and professional growth, alongside access to global expertise through our international network. We reinvest in our people and ideas through initiatives like Invest in Arup, which funds research and development beyond client projects for broader industry impact. With opportunities for career progression across 140 countries, including short- and long-term assignments, our structure enables diverse career paths. 

Arup’s Data Centre and Critical Facilities team is globally recognised for being at the forefront of the industry. We deliver a comprehensive range of services that support clients throughout the entire lifecycle of their projects. From initial site due diligence and masterplanning to fully integrated ACSMEP and specialist systems design—including security, telecoms, and other critical infrastructure—we provide tailored solutions that meet the evolving demands of the industry.

Our expertise extends to enhancing operational performance and sustainability through energy efficiency and carbon reduction initiatives on live facilities. We also offer whole lifecycle carbon analysis to help clients make informed decisions that align with their environmental goals. In addition, our team supports strategic growth and transformation through merger and acquisition advisory services, as well as project, programme, and cost management.

Joining our team means contributing to high-impact projects that shape the future of data centres and critical environments, while working alongside industry-leading professionals in a collaborative and forward-thinking environment.

Watch this short clip to discover how Arup are shaping a better world and how you could be a part of it!

The Opportunity

This is a very exciting role, providing you with the opportunity to develop into a leadership position, with the support and mentoring of our large and expanding team. You will be given the support to develop your team and client leadership skills, whilst taking responsibility for leading small projects and developing your multi-disciplinary knowledge.  

Our Data Centre Team is a global network of Architects, Engineers and Specialist Consultants working with the largest and most innovative businesses in the sector. Whilst many projects are Data Centre focussed there are lots of opportunities for involvement in other Critical Facility projects including Healthcare and TV/Film Studios. 

Our clients include developers; enterprise users; telecommunication services; edge; retail and wholesale colocation providers and all the major hyperscale cloud services providers.  

Our London team delivers projects across the UK, Europe, India and Africa. Our unique delivery model of Engineered Architecture co-locates Arup’s Architects, Engineers and specialists as one project team which improves collaboration and coordination. In these highly serviced buildings, our Architects appreciate that the engineering must lead the design and the architecture follows the function - although there is room for design flair and innovation. 

Responsibilities will include:

• Managing the mechanical design concepts that encompass the latest design thinking on low energy/water data centre design, resilience, commissioning and maintenance 

• Coordinating the design analysis and working with the team to optimise systems 

• Managing the production of models, drawings, reports and specifications 

• Supervising and coordinating the work of others and coordinating work with engineers of other disciplines including in-house specialists 

• Mentoring and development of junior colleagues and continuing your own professional development 

At Arup, you belong to an extraordinary collective – in which we encourage individuality to thrive. Our strength comes from how we respect, share and connect our diverse experiences, perspectives and ideas. 

You will have the opportunity do socially useful work that has meaning – to Arup, to your career, to our members and to the clients and communities we serve.

Is this role right for you?

We’re looking for a candidate who:

• Is a Chartered Engineer, or on track to achieve Chartered status (CIBSE / IMechE) within 6–12 months, in the field of Building Services ( CIBSE / IMechE).
• Has experience working on the development of data centre projects throughout all stages of design and construction & will have had some experience of direct client and contractor interaction regarding topics such as:
  • Design of different cooling solutions including chilled water systems; 
  • PUE/WUE calculations and efficiencies 
  • TIER levels of resilience and business continuity:
  • Testing and commissioning 
• Has strong commercial awareness, with experience in predicting, planning, and managing resource requirements to achieve financial targets

• Is Proficient in energy modelling software, ideally IES, and experienced in using 3D modelling tools such as Revit. Familiarity with 6Sigma CFD software  in the context of Data Centre projects, is desirable.

• Has an inquisitive nature and a strong interest in investigating and researching new opportunities, ways of working, and technologies that enhance our Critical Systems offering. Also committed to developing the Data Centre business by attending industry events, speaking at conferences, and cultivating relationships with industry partners.

   

Not ready to apply just yet, or have a few questions? Contact Louise Raisbeck ([email protected]). Please note, to ensure we remain GDPR compliant do not send your CV directly to us via this email.

What we offer you

At Arup, we care about each member’s success, so we can grow together.

Guided by our values, we provide an attractive total reward package that recognises the contribution of each of our members to our shared success. As well as competitive, fair and equitable pay, we offer a career in which all of our members can belong, grow and thrive – through benefits that support health and wellbeing, a wide range of learning opportunities and many possibilities to have an impact through the work they do.

We are owned in trust on behalf of our members, giving us the freedom, with personal responsibility, to set our own direction and choose work that aligns with our purpose and adds to Arup’s legacy. Our members collaborate on ambitious projects to deliver remarkable outcomes for our clients and communities. Profit Share is a key part of our reward, enabling members to share in the results of our collective efforts.

We also provide Private medical insurance, Life assurance, Accident insurance and Income protection cover. In addition, you’ll have access to flexible benefits to help you look after all aspects of your wellbeing and give you the freedom and flexibility to find the best solutions for you, your family, and your individual needs.

Different People, Shared Values

Arup is an equal opportunity employer that actively promotes and nurtures a diverse and inclusive workforce. We welcome applications from individuals of all backgrounds, regardless of age (within legal limits), gender identity or expression, marital status, disability, neurotype or mental health, race or ethnicity, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. We are an open environment that embraces diverse experiences, perspectives, and ideas – this drives our excellence.

Guided by our values and alignment with the UN Sustainable Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture: from race, ethnicity and cross-cultural working to gender equity and LGBTQ+ and disability inclusion – we aim to create a space for you to express yourself and make a positive difference.

Discover more about life at Arup at http://www.arup.com/careers/your-life-at-arup.

We are committed to making our recruitment process and workplaces accessible to all candidates. Please contact Louise Raisbeck ([email protected]) to let us know if you need any assistance or reasonable adjustments throughout your application or interview process, and/or to perform the essential functions of the role. We will do everything we can to support you.

Our Application Process

To understand what to expect next, please visit our https://www.arup.com/careers/recruitment-process/

Stay safe online - Arup will never ask for payment or your bank details as part of our recruitment process.

Recruitment Agencies - We have a Preferred Supplier List of trusted partners to assist us when required and do not acknowledge any speculative CVs or unsolicited candidate introductions from agencies not on the list.

Closing date: 10th December 2025 -  We may close the role earlier than the advertised date should we receive a large number of applications, so please ensure you apply early.

DC2025