Expression of Interest - Building Services Engineers (Mechanical) – Intermediate - Senior Levels.

Expression of Interest - Building Services Engineers - Mechanical - UK wide

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

Joining Arup

Arup’s Building Services Engineers tackle diverse challenges – from sustainable strategies to fire suppression systems, and from drainage in high‑rise buildings to supplying ultra‑pure water and piping specialist gases and fluids for healthcare, science and industry facilities. Together with our mechanical and electrical engineers, we provide integrated building services to our clients.

The Opportunity

We are looking for Mechanical Building Services Engineers at all levels to join our growing teams and contribute to a wide variety of exciting, technically challenging & cutting‑edge projects across sectors including Rail, Science & Industry, Data Centres, Education, Residential, Commercial, and Healthcare.

Whether you’re early in your career or bring years of experience, you’ll have the opportunity to shape sustainable, efficient, and innovative mechanical systems that support the functionality and wellbeing of diverse environments. From feasibility studies and detailed design to completion, you’ll collaborate with multidisciplinary teams to deliver high‑quality engineering solutions that make a real impact.

We would be interested in hearing from Building Services Engineers at all seniority levels who have experience in the following areas:

• Multi-disciplinary projects across a variety of sectors – collaborating across engineering and architectural teams to design and integrate efficient, sustainable, and technically robust mechanical systems tailored to the unique demands of diverse sectors.
• Data Centres & Mission Critical Projects – designing and delivering resilient HVAC, ventilation, and environmental control systems that ensure operational continuity, safety, and compliance with stringent performance and regulatory standards.
• Decarbonisation Strategies – developing strategies for both new and existing assets including life‑cycle carbon and costing optioneering assessments, using and developing analytical tools and economic models to optimise asset energy, carbon and financial performance.
• Coding / Digital – leveraging software development and automation tools to enhance the design, simulation, and performance analysis of mechanical systems, enabling smarter, more efficient solutions across complex, multidisciplinary projects.

Are these roles right for you?

• Have a degree in Mechanical Engineering, Building Services Engineering, Architectural Engineering. You will either be chartered, working towards chartership or be keen to work for a company who will support you through your chartership journey.
• Have a demonstrable background in the field of mechanical building services design with knowledge and interest in sustainable building design in terms of both energy and carbon.
• Are proficient in BIM environments, particularly using Revit, and have experience with dynamic thermal modelling (preferably IES).
• Demonstrate strong Leadership & Strategic Leadership skills (Senior / Principal levels) to lead complex, multidisciplinary projects and manage project teams; provide technical oversight, quality assurance, and strategic direction and support business development, client engagement & innovation in sustainable and digital engineering.
• Have commercial awareness and experience in predicting, planning and managing resource requirements to achieve financial targets.

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 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

We are committed to making our recruitment process and workplaces accessible to all candidates. Please contact Louise.Raisbeck ( ) 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.

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