Sale Group is a leading family-owned building services company specialising in mechanical, public health, air conditioning, plumbing, maintenance, and related solutions across commercial and domestic projects. With our head office in Cheam and a growing team, we''re committed to delivering high-quality services and investing in the next generation of talent. We are seeking an experienced Senior CAD Designer to join our team in Cheam. This is an excellent opportunity for a skilled CAD professional to take a leading role in the delivery of high-quality building services designs within a supportive and dynamic environment. Key Responsibilities: Produce accurate and detailed 2D and 3D drawings using AutoCAD for mechanical and public health systems. Lead the development and coordination of building services designs, ensuring integration with architectural and structural elements. Prepare and review schematics, layouts, general arrangement drawings, and as-built drawings. Manage design changes, carry out clash detection, and ensure full compliance with project specifications, standards, and regulations. Mentor and support junior CAD staff and engineers, providing technical guidance and quality checking of drawings. Utilise Revit for BIM modelling, coordination, and collaboration on multi-disciplinary projects. Liaise with project engineers, site teams, and external consultants to resolve technical issues and optimise designs. Requirements: Significant practical experience (minim