Mechanical Engineer

AtkinsRéalis is one of the world’s most respected design, engineering and project management consultancies, with over 50,000 employees worldwide. We offer the opportunity to work on high-profile, technically challenging projects that shape the built environment and support future generations.

A motivated Mechanical Building Services Engineer is sought to join our team and further develop their career in a collaborative, high-performing environment. We have openings in our London office offering the opportunity to join a national delivery team and work with designers across the UK and internationally through our Global Technology Centre.

This opportunity involves working as part of a national practice of Building Design professionals, delivering engineering design solutions to clients across the UK. The role offers exposure to a broad range of sectors, with experience in Commercial, Defence, Energy, Education and Healthcare particularly beneficial. It is an excellent opportunity for an engineer to broaden their technical capability, gain valuable project experience and develop client-facing skills within a leading building design consultancy.

Our Building Services Engineering team won the "Building Performance Consultancy (over 300 employees)" award at the CIBSE Building Performance Awards 2025. Our focus is on developing our people to realise their full potential, with development plans tailored to individual needs and aspirations.

This role offers the opportunity to build on existing technical strengths while developing digital capability, project management skills and broader career progression within the practice, supported by experienced colleagues across our national team. Energy and carbon are central to this position and, with the growing importance of decarbonising the built environment, improving air quality and delivering energy-efficient design solutions, our team is expanding to meet increasing client demand for sustainable, high-performing buildings and future-ready engineering solutions.

Your role includes:

• Undertaking the design and specification of all mechanical building services systems, from concept through to detailed design, including heating, cooling, ventilation and public health systems.
• Carrying out detailed calculations using industry-standard software tools, including Excel, IES, Hevacomp and MEPworx.
• Preparing technical specifications, design reports and presentations to support effective project delivery.
• Collaborating with our BIM team to develop models and drawings, with a working understanding of Revit.
• Representing AtkinsRéalis at meetings with clients and other professionals.
• Carrying out condition surveys, inspections, and supporting the monitoring of installation and commissioning activities.
• Managing your assigned workload and delivering work to a high standard, within agreed deadlines and budgets.
• Contributing to knowledge sharing and supporting less experienced team members where appropriate.

About you:

• Relevant experience in Mechanical Building Services Engineering, with a strong interest in design excellence and delivering high-quality sustainable building design solutions.
• A proactive and enquiring approach, with an interest in exploring new ideas, digital tools and ways of working that improve design quality and project outcomes.
• Degree qualified, or equivalent qualification, in Building Services Engineering / Mechanical Engineering, or related subjects.
• Working towards Chartered Membership of CIBSE, IMechE, or an equivalent professional body, with a clear interest in continued professional development.
• Experience of industry-standard software and tools such as IES, Hevacomp, StabiCAD, Revit, NBS and Microsoft packages.
• Knowledge of thermal modelling for compliance and design optimisation would be beneficial.
• Knowledge of UK technical standards and codes of practice.
• Familiarity with energy reduction methods and approaches to decarbonising new and existing buildings.
• Awareness of energy and carbon-related data capture and analytics, with an interest in improving building performance and supporting low-carbon design.
• Experience of designing for measurement and verification, including commissioning and post-installation evaluation of performance.

Rewards & benefits include competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Enjoy opportunities for training and professional development to grow your skills and expertise, combined with a hybrid working culture and flexible holiday allowances.

We’re committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive and develop to be the best we can be. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and abilities.