Mechanical Building Services Contractor, with a strong and stable order book secured through 2027 , are seeking a practically minded, mechanically biased CAD Design Engineer Joining a close-knit, 5-strong design and delivery team you will bridge the gap between engineering design and practical project delivery Key Responsibilities Produce accurate 2D/3D plant room layouts, schematics, and pipework arrangements using AutoCAD (Primary) and Revit (Occasional). Review design inputs, calculate spatial/containment requirements, and specify mechanical equipment (boilers, chillers, pumps) in close collaboration with Project Managers. Collaborate with structural, electrical, and architectural teams to resolve spatial conflicts digitally before materials hit the site. Conduct site surveys, work alongside site installation teams to troubleshoot practical issues, and amend drawings for as-built documentation. Ensure all drawings and layouts adhere to UK Building Regulations. What We Are Looking For Proven 3D CAD Design experience An understanding of mechanical building services and basic pipe stress/routing constraints. Proficiency in AutoCAD is essential Excellent problem-solving skills and the confidence to liaise with site teams, and interpret technical specifications ..... full job details .....