Mechanical Building Services Design Engineer Job Type: Full-time, Permanent Location: Cardiff Area Benefits: Company pension, health insurance, on-site parking About the Role We are seeking a Mechanical Building Services Design Engineer with at least 3 years’ UK experience to join our growing team in the Cardiff area. You’ll be part of a collaborative, friendly practice delivering innovative and sustainable M&E design solutions for projects across the commercial, industrial, government, and healthcare sectors. With a strong reputation for quality and reliability, we work on high-profile projects nationwide alongside leading architects, designers, and contractors, with a focus on low-carbon and sustainable design. Key Responsibilities Develop and deliver mechanical building services design solutions, ensuring compliance with current legislation and engineering standards. Carry out detailed calculations, analysis, and design reviews. Prepare and review mechanical design drawings and related technical documentation. Coordinate with BIM teams to ensure design packages meet required quality and deadlines. Support project managers throughout design, installation, commissioning, and testing stages. Liaise with clients, consultants, and contractors, maintaining strong professional relationships. Ensure adherence to health, safety, environmental, and quality management policies. Work across multiple projects simultaneou...