A multi million pound turnover MandE contractor enjoying continued success seek the solid appointment of a talented and skilled Mechanical Design Engineer to join their highly stable and reputable organisation. Based out of their Edinburgh offices, this award winning contractor covers multiple UK schemes from commercial to industrial based projects. Candidates highly sought after are those ideally from an MandE / Mechanical and Electrical Services / Building Services or HVAC background. We are interested in candidates to consider of varied levels - ESSENTIAL is your background in Mechanical Building Services design. You will ideally be capable of producing heating/cooling (thermal modelling) and ventilation load calculations using industry software, with sizing and selection of AHUs, FCUs, extract fans, pumps, chillers, ASHP, boilers and plate heat exchangers etc. Candidates sought will have experience producing above ground drainage calculations and sizing of drainage systems. Working knowledge of design software such as Hevacomp, Carrier HAP, CyMap, IES/TAS is highly desirable. Joining a very stable player in a position of commercial strength, this is a fantastic time to join in on their ongoing success for 2026. Should you have this background and experience, with a desire to further develop and enhance your career to another level, then please send your updated CV with all relevant experience and skills clearly shown for the best chance of securing an interview. Do you kn