We are looking for an experienced and proactive Mechanical Design & CAD Engineer with a strong background in mechanical building services design, including HVAC and public health systems. This role is ideal for someone who thrives in a hands-on design environment, enjoys varied project work from large-scale domestic properties to school developments and is confident taking projects through RIBA Stages 3 to 5. As a senior member of the team, you will also be expected to mentor junior engineers, provide technical guidance, and ensure design consistency and quality across multiple projects. Key Responsibilities * Lead mechanical building services design on projects from RIBA Stage 3 (developed design) through to Stage 5 (construction). * Produce high-quality detailed design drawings, schematics, and schedules using CAD and BIM software (e.g., AutoCAD, Revit MEP, or similar). * Develop energy-efficient HVAC systems, hot and cold-water services, drainage layouts, and other public health engineering elements. * Ensure compliance with current building regulations, CIBSE guidelines, and other relevant codes of practice. * Coordinate mechanical services with architectural, structural, and electrical disciplines. * Conduct site surveys, attend design meetings, and support site installation reviews. * Mentor junior engineers and review their work to ensure quality and consistency. * Participate in client meetings a...