Mechanical Design Engineer

Position: Mechanical Design Engineer (Permanent)
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, Sketch Up)

✅ 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