Mechanical Design Engineer

Mechanical Design Engineer – Building ServicesLocation: Southampton | Hybrid Working | Full-TimeSalary: Competitive + Bonus + Excellent Benefits

About the Role
We are looking for a Mechanical Design Engineer to join a respected and growing MEP consultancy in Southampton. This role offers the opportunity to take ownership of mechanical building services projects, contributing to sustainable, technically robust solutions across healthcare, education, commercial, and research sectors.
As a Mechanical Design Engineer, you will work in a collaborative, multidisciplinary team, gaining exposure to varied projects while receiving mentorship and support for career progression toward chartership.
Key Responsibilities

• Deliver mechanical design solutions for HVAC, ventilation, heating, cooling, and domestic water systems
• Produce calculations, specifications, technical reports, and design drawings using Hevacomp, IES, Revit, AutoCAD, and other software
• Coordinate with electrical, sustainability, and BIM teams to ensure fully integrated MEP designs
• Support sustainable and low-carbon strategies across mechanical systems
• Attend client meetings, design reviews, and technical discussions
• Conduct site visits and surveys to collect technical data and validate designs
• Ensure compliance with UK building regulations, CIBSE guidance, and client requirements
• Mentor junior engineers and support project delivery in conjunction with senior engineers

Candidate Profile

• 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
• Strong understanding of HVAC systems, plantroom layouts, pipework, ductwork, and energy efficiency principles
• Knowledgeable in UK building regulations and CIBSE standards
• Excellent communication, organisation, and teamwork skills
• Proactive, detail-oriented, and committed to professional development
• Ambitious and motivated to work toward chartership (supported by the consultancy)

Why You’ll Want to Join

• Join one of the South Coast’s most respected independent MEP consultancies
• Hybrid and flexible working arrangements based on trust and autonomy
• Work on a diverse portfolio: hospitals, schools, commercial, and research projects
• Structured career development with clear progression toward senior roles and chartership
• 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

Take the next step in your career as a Mechanical Design Engineer and join a collaborative, forward-thinking team delivering sustainable building services solutions.