Our client, a prominent player in the construction industry, is currently seeking an experienced and highly motivated Senior Mechanical Design Engineer specialising in Building Services to join their expanding team. This is a permanent position where you will play a pivotal role in the design and delivery of high-quality mechanical systems for building projects across the UK and Ireland. The role requires a solid background in mechanical building services, including HVAC, heating and cooling, and renewable systems. Key Responsibilities: Lead or support the design and specification of mechanical building services systems in various sectors such as commercial, residential, healthcare, education, and industrial Develop detailed mechanical designs including HVAC systems, heating and cooling systems, domestic hot and cold water services, renewable energy systems, compressed air and steam systems, and Building Management Systems (BMS) Produce detailed design drawings, layouts, schematics, and equipment schedules Carry out mechanical design calculations for pipework, ductwork, pumps, fans, and plant selections Prepare and review specifications, reports, and technical submittals Collaborate with electrical, architectural, and structural engineers to ensure coordinated design solutions Attend design team meetings, client briefings, and site visits Mentor and support junior engineers Ensure compliance with current UK and Irish regulations and standards Job Requirements: Proficiency in AutoCAD and Autodesk Revit MEP for BIM modelling and clash detection Significant experience with HVAC, heating and cooling, and renewable systems in building services Solid understanding of CIBSE Guides, Building Regulations Part L, and BSRIA Application Guides Familiarity with energy and carbon reduction strategies aligned with UK Net Zero targets Experience using Hevacomp, IES VE, and MagiCAD for design and analysis Excellent communication, report writing, and client engagement skills Degree in Mechanical Engineering, Building Services Engineering, or related field Desirable Skills: Experience with lifecycle cost analysis and embodied carbon assessments Knowledge of UK BIM Level 2 standards and ISO 19650 Experience in on-site construction support, commissioning, and witnessing Familiarity with project delivery under RIBA Plan of Work stages Benefits: Competitive salary Opportunity to work on diverse and challenging projects Professional development and training opportunities Supportive and collaborative work culture Comprehensive employee benefits package If you are an experienced Senior Mechanical Design Engineer specialised in building services and looking for a new opportunity, we would love to hear from you. Apply now to join our client's dynamic and talented team.