Senior Mechanical Design Engineer Building Services Consultancy - Berkshire Permanent A well-established and growing building services consultancy based in Berkshire is seeking a Senior Mechanical Design Engineer to play a key role in the delivery and leadership of mechanical building services projects. This is an excellent opportunity for an experienced engineer looking to take ownership of projects, mentor junior engineers, and work closely with clients on a varied and technically interesting workload. The Role As a Senior Mechanical Design Engineer, you will lead the mechanical design on projects from concept through to completion, acting as a technical authority within the business and supporting the development of the wider team. Key responsibilities include: Leading the mechanical design of HVAC, ventilation, heating, cooling, and public health systems Managing projects through all RIBA stages, from feasibility and concept to construction support Producing and reviewing calculations, specifications, reports, and detailed designs Coordinating with electrical engineers, architects, and external consultants Acting as a key point of contact for clients and attending design and site meetings Providing technical guidance and mentoring to junior and intermediate engineers Ensuring designs comply with current UK regulations, standards, and best practice About You Degree or equivalent in Mechanical Engineering or Building Services Engineering Significant experience within a UK building services consultancy Strong technical knowledge of mechanical building services systems Good working knowledge of UK building regulations, CIBSE guidance, and British Standards Experience using design software such as Hevacomp, IES, or similar AutoCAD and Revit experience preferred Confident, professional communicator with client-facing experience What's on Offer Competitive salary dependent on experience Hybrid and flexible working arrangements Clear route to Principal / Associate level Support with Chartership and ongoing CPD Friendly, professional consultancy environment Diverse project portfolio across multiple sectors Ready to take the next step in your career? Apply today to join a dynamic consultancy where your expertise will shape the future of building services design.