Senior / Principal Mechanical Building… at AtkinsRéalis · Cardiff

Senior / Principal Mechanical Building Services Engineer Location: GB.Cardiff.2 Capital Quarter Tyndall street Job Description Overview 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. Your role Take responsibility for understanding client requirements through clear briefings and effective stakeholder management, ensuring strong and trusted working relationships. Prepare mechanical specifications and equipment schedules with attention to detail and alignment to project needs. Carry out accurate heating, cooling, and ventilation calculations to support safe, efficient, and compliant designs. Produce detailed technical calculations using industry‑standard digital tools, while also supporting and guiding others in producing high‑quality outputs. Collaborate closely with the AtkinsRéalis Global Technology Centre (GTC) to enhance design quality and add value to building services projects. Confidently represent AtkinsRéalis in meetings with clients, contractors, and project partners, contributing positively and professionally. Undertake site surveys and regularly review site progress to ensure designs are delivered as intended. Manage project delivery responsibilities, supporting projects through key stages to successful completion. Actively contribute to the growth of the team by assisting in the development and mentoring of colleagues. Take advantage of opportunities to step into a lead role within the Mechanical Design Delivery team. Benefit from clear opportunities for career progression and professional development within the organisation. About you Degree qualified, or equivalent qualification, in Building Services Engineering or related subject. Chartered Engineer with CIBSE / IMechE or working towards chartership. Good level of computer literacy in Microsoft packages. Experience and awareness of mechanical design tool software packages such as IES, HEVACOMP, NBS and Revit. CIBSE Low Carbon Consultant (LCC). Experience working in a design consultancy and/or experience of working within a contractor design environment is essential. Have a detailed knowledge of appropriate technical standards. Able to take charge of project deliverables, make decisions, act on own initiative and operate in a pro-active way. Awareness and management of available project budget. Rewards & benefits 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. Be rewarded. Find out more. About AtkinsRéalis 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. Find out more. Additional information Security clearance 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. As a Disability Confident Leader, we are committed to offering an interview to all applicants who have a disability and meet the essential criteria. If you would like to be considered under this commitment, please let us know at the application stage. #LI-INFRASTRUCTURE | #LI-UK 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.