About the Company We are working with a leading M&E contractor who are specialists in mechanical and electrical building services, with expertise across HVAC, refrigeration, and sustainable engineering solutions. We deliver design, installation, and maintenance services to clients across commercial, industrial, and public sectors. Role Overview We are seeking a Mechanical Design Engineer to join their growing design team. You will be responsible for producing detailed mechanical building services designs (HVAC, hot & cold water, heating, ventilation, refrigeration), from concept through to completion. Working closely with project managers, clients, and contractors, you will ensure designs meet technical standards, budgets, and sustainability targets. Key Responsibilities * Develop mechanical building services designs from initial brief through to detailed design. * Produce drawings, specifications, and technical calculations using CAD and relevant software (AutoCAD, Revit, Hevacomp, IES, etc.). * Undertake heat loss/gain calculations, load assessments, and energy modelling where required. * Collaborate with electrical engineers and other disciplines to deliver coordinated designs. * Provide technical support to project managers and site teams during installation. * Ensure compliance with current UK building regulations, CIBSE, and industry standards. * Attend client meetings and design reviews. * S...