Mechanical Design Engineer – Salary up to £50K + Benefits - Cardiff
Are you a mechanical design engineer passionate about low-carbon design and sustainable energy? Our client — an innovative engineering consultancy leading the way in heat decarbonisation — is looking for a Mechanical Design Engineer to join their growing team.
You’ll deliver detailed mechanical designs for plant rooms and building services, support major low-carbon heat projects across the UK, and play a key role in shaping efficient, future-ready energy systems.
What you’ll bring
✅ Experience designing mechanical building services
✅ Strong understanding of plant rooms, heating, cooling, and distribution systems
✅ Proficiency with CAD tools (Revit, CAD, SketchUp)
✅ Ability to collaborate across engineering teams and communicate clearly with clients
✨ Desirable: experience in low-carbon/renewable systems or working toward Chartership
What you’ll do
📐 Develop detailed mechanical designs (RIBA/BSRIA Stages 3–4)
📝 Produce drawings, schematics, specifications, and project documentation
📊 Complete load calculations, pipework sizing, and technical assessments
🏗 Carry out site surveys of existing plant and distribution systems
🤝 Support tender reviews and contractor evaluation
🧩 Work closely with internal low-carbon specialists to deliver integrated solutions
📅 Attend and lead client meetings; manage project tasks and deliverables
📚 Support and mentor junior engineers as the team continues to grow
About you
You’re detail-driven, technically sharp, and motivated by delivering high-quality engineering solutions. You enjoy working on complex projects, contributing fresh ideas, and playing a part in the UK’s journey toward low-carbon heating.
This role offers a collaborative environment, meaningful work, and strong opportunities for career development within a respected consultancy.
Join a forward-thinking consultancy driving innovation in low-carbon heat and sustainable mechanical design. Help shape the next generation of energy infrastructure