Mechanical Design Engineer

Mechanical Design Engineer – Building Services

££ Southampton (Hybrid Working)
££ Full-Time
££ Competitive Salary + Bonus + Excellent Benefits

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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.

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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

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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

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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 RandD 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 and life insurance
- Enhanced pension scheme
- Cycle to work scheme
- CPD support and training allowance

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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.