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 systemsProduce calculations, specifications, reports, and technical drawings using design tools and softwareCoordinate designs with internal electrical, sustainability, and BIM teamsContribute to sustainable and low-carbon strategies across mechanical systemsAttend client and design team meetings and contribute to technical discussionsConduct site visits and surveys to gather technical dataEnsure designs meet current UK building regulations, CIBSE guides, and client requirementsSupport 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 consultancyProficient with mechanical design software (Hevacomp, IES, Revit, AutoCAD, etc.)Understanding of HVAC systems, plantroom layouts, pipework, ductwork, and energy efficiency principlesStrong awareness of current UK regulations and CIBSE best practicesExcellent written and verbal communication skillsA proactive, organised, and detail-focused approach to your workAmbition 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 consultanciesHybrid and flexible working built around trust and autonomyBroad project exposure from hospitals and schools to large-scale commercial and R&D buildingsSupportive leadership, collaborative culture, and structured career developmentFull backing towards chartership (CEng)Competitive salary and full benefits, including:
28 days annual leave + bank holidaysDiscretionary bonusPrivate healthcare & life insuranceEnhanced pension schemeCycle to work schemeCPD support and training allowanceIf 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.