Overview

Mechanical Design Engineer – Building Services

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

What You’ll Be Doing

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.