Mechanical Design Engineer

Elastic Ltd; Wales; On-site; GBP 45,000 - 50,000; Full time

Job summary

A leading engineering consultancy in the United Kingdom is seeking a Mechanical Design Engineer to join their team in Cardiff. This role involves delivering detailed mechanical designs for low‑carbon heating projects and requires experience in designing mechanical building services and proficiency with CAD tools like Revit and SketchUp. The ideal candidate should be detail-oriented, technically sharp, and passionate about sustainable energy solutions. You will work collaboratively to shape the future of energy infrastructure.

Qualifications

• Experience designing mechanical building services is essential.
• Strong understanding of plant rooms, heating, cooling, and distribution systems required.
• Proficiency with CAD tools is a must.

Responsibilities

• Develop detailed mechanical designs for projects.
• Produce drawings and project documentation.
• Conduct load calculations and technical assessments.
• Carry out site surveys of existing systems.
• Support tender reviews and evaluations.
• Collaborate with specialists to deliver integrated solutions.
• Manage project tasks and attend client meetings.
• Mentor junior engineers as the team grows.

Skills

Mechanical building services design

Plant rooms expertise

Proficiency in CAD tools (Revit, CAD, SketchUp)

Collaboration and communication

Experience in low-carbon/renewable systems

Tools

CAD software (Revit, CAD, SketchUp)

Job description

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