Mechanical Design Engineer – Building Services Southampton (Hybrid Working) Full-Time Competitive Salary Bonus Excellent Benefits About the Role An established and growing MEP consultancy on the South Coast is looking to appoint a Mechanical Design Engineer to join their friendly, technically focused team in Southampton. Working on a broad range of building services projects across the healthcare, education, commercial, and research sectors, you’ll be part of a collaborative, multi-disciplinary environment delivering technically sound, sustainable engineering solutions. This is a great opportunity for someone with a few years of consultancy experience to step into more project ownership, supported by senior mentors and clear career progression. What You’ll Be Doing Deliver mechanical building services designs including HVAC, ventilation, heating, cooling, and domestic water systems Produce calculations, specifications, reports, and technical drawings using design tools and software Coordinate designs with internal electrical, sustainability, and BIM teams Contribute to sustainable and low-carbon strategies across mechanical systems Attend client and design team meetings and contribute to technical discussions Conduct site visits and surveys to gather technical data Ensure designs meet current UK building regulations, CIBSE guides, and client requirements Support more junior staff and work closely with senior engineers for project delivery What You’ll Bring Degree or HND in Mechanical or Building Services Engineering (BEng, MEng, or equivalent) 2–5 years’ experience in mechanical design within a building services consultancy Proficient with mechanical design software (Hevacomp, IES, Revit, AutoCAD, etc.) Understanding of HVAC systems, plantroom layouts, pipework, ductwork, and energy efficiency principles Strong awareness of current UK regulations and CIBSE best practices Excellent written and verbal communication skills A proactive, organised, and detail-focused approach to your work Ambition to develop professionally – working towards chartership is encouraged and supported Why You’ll Want to Join Work with one of the South Coast’s most respected independent consultancies Hybrid and flexible working built around trust and autonomy Broad project exposure from hospitals and schools to large-scale commercial and R&D buildings Supportive leadership, collaborative culture, and structured career development Full backing towards chartership (CEng) Competitive salary and full benefits, including: 28 days annual leave bank holidays Discretionary bonus Private healthcare & life insurance Enhanced pension scheme Cycle to work scheme CPD support and training allowance If you're looking for a supportive environment, varied project work, and a clear route to progress—this could be the perfect next step. Apply now for a confidential conversation