Nuclear jobs in United Kingdom

Shape the future of our cities and environments.

You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise and knowledge. And when you join us, you'll be a part of this genuinely collaborative environment, where everyone's voice is valued and treated equally.

We're passionate about what we do, but we don't take ourselves too seriously. Simply put, this a great place to be. So, when it comes to your life outside of work, ask us about our flexible and remote working policies designed to help you get the most out of life.

Our Building Design Practice is seeking an experienced, motivated Mechanical Building Services Design Engineer. This is an excellent opportunity to progress your career in a supportive setting. You’ll work from our Birmingham office, joining a national team of designers across the UK, and collaborating internationally via our Global Technology Centre.

As part of our national Building Design team, you’ll deliver engineering solutions for a broad range of sectors such as Commercial, Residential, Education, and Rail. This client-facing, hands-on role is ideal for engineers looking to develop within a leading consultancy.

We’re committed to staff development and offer tailored growth plans and opportunities to enhance your technical, digital, and project management skills. Our team is focused on energy efficiency and decarbonising the built environment, delivering sustainable solutions for a broad range of clients.

We embrace digital innovation and global collaboration, and we’re looking for someone with strong technical skills and an innovative mindset—ready to contribute to our digital practice and manage diverse teams both locally and remotely.

• Interpret project briefs and contribute to mechanical building services design, prioritising sustainable solutions such as energy efficiency, decarbonisation, and passive approaches.
• Produce calculations using industry-standard tools (Excel, IES, Hevacomp) to support low‑carbon and high‑performance outcomes.
• Prepare technical specifications with NBS, collaborating closely with the Global Technology Centre and BIM team to integrate sustainable design principles.
• Represent AtkinsRéalis at meetings, championing sustainable practices with clients and contractors, and conduct site surveys and inspections to ensure adherence to environmental standards.
• Write reports, maintain records, and ensure compliance with all quality, environmental, and governance processes.
• Manage personal workload, project delivery elements, and assist with junior staff development, encouraging knowledge‑sharing on sustainable design strategies.

• Degree (or equivalent) in Building Services/Mechanical Engineering or related field.
• Chartered Engineer (or working towards CEng) with CIBSE or IMechE.
• Proficient with digital tools: IES, Hevacomp, Navisworks, NBS, Microsoft packages.
• Understanding of energy reduction and decarbonisation methods.
• Basic knowledge of energy/carbon data analytics.
• Familiarity with building physics and passive design principles.
• Experience with measurement, verification, commissioning, and performance evaluation.
• Background in design consultancy or contractor design environment plus, knowledge of relevant technical standards.
• Strong reporting and presentation skills; able to manage deliverables and budgets.
• Willingness to undertake other reasonable duties as required.

Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

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We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

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This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this is necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of 5 years or longer. If applying to this role please do not make reference to (in conversation) or include in your application or CV, details of any current or previously held security clearance.

We are 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. So, we offer a range of family friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability.

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Worker Type Employee Job Type Regular

At AtkinsRéalis , we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world‑class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.