Job Title: Senior/Principal Mechanical Engineer - Office Launch Location: Cardiff, UK Salary: £45,000 to £65,000 Benefits About the Company A well-established building services consultancy has recently opened a new office in Cardiff. The company is known for delivering high-quality, energy-efficient designs across multiple sectors. They offer full lifecycle support, including feasibility studies, detailed design, construction monitoring, project management, and sustainability advisory. The firm has a strong reputation for staff development and a commitment to low-energy, sustainable building solutions. The Opportunity Strategic Leadership : Help launch and grow the Cardiff office, build local client relationships, and influence the company’s strategy in Wales Career Progression : Supported by an experienced leadership team, with the autonomy to make your mark. There is potential to progress to Associate or other leadership roles Project Portfolio : Work across sectors such as education, healthcare, commercial, residential, and specialist projects including laboratories, hotels, and leisure Key Responsibilities Lead mechanical engineering design and delivery, from feasibility through to project close-out Establish and maintain strong relationships with clients, architects, M&E contractors, and other stakeholders Mentor junior engineers and support their professional development Contribute to energy performance and sustainability goals, including Part L compliance, dynamic simulation, and BREEAM Oversee site inspections, CDM compliance, contract administration, cost control, and scheduling Essential Skills & Experience Chartered Mechanical Engineer or working towards chartership, with strong consultancy experience Proven track record delivering projects across sectors such as education, healthcare, labs, and commercial buildings Experience in sustainable design, including energy modelling, Part L compliance, and low or zero carbon systems Confident in client engagement, project management, and technical leadership Experience mentoring or managing junior engineers is desirable What’s In It For You? Make Your Mark : Be part of a growing office and shape its long-term success Career Growth : A clear and supported path to leadership roles such as Associate Supportive Environment : Work closely with experienced leaders in a collaborative team High Standards : Join a consultancy that values professional development and delivers top-quality, sustainable design If you're a motivated Senior or Principal Mechanical Engineer looking for your next step, we’d love to hear from you.