Mechanical Design Engineer (Building Services)

Company: PT Renewables
Apply for the Mechanical Design Engineer (Building Services)
Location: Cardiff
Job Description:

Mechanical Design Engineer | Cardiff | £45k–£55k

Ready to take ownership of mechanical designs from concept through to delivery?

An established Building Services consultancy is looking for a Mechanical Design Engineer to join their Cardiff team, working across commercial, industrial, education and public-sector projects.

Ideal for an Intermediate to Senior Engineer with a strong MEP background.

The role

• Design HVAC, heating, ventilation & public health systems

• Produce calculations, specifications & technical reports

• Develop & coordinate designs using Revit

• Work with electrical, structural & architectural teams

• Take projects from concept through to construction

• Attend design meetings & liaise with clients

What we’re looking for

✔️ Mechanical Building Services Design experience

✔️ Strong HVAC / MEP knowledge

✔️ Confident with Revit

✔️ Experience with Hevacomp, MagiCAD, IES VE or similar

✔️ Strong mechanical calculation & design knowledge

✔️ Degree, HND or equivalent

What’s on offer?

£45,000–£55,000

️ Varied & technically interesting projects

Clear progression towards Senior / Principal Engineer

Technical & professional development

Support towards professional accreditation

🤝 Established consultancy with a strong project pipeline

Cardiff | Permanent | Full-time

If you’re a Mechanical Design Engineer looking for more ownership, varied projects and a clear progression path, get in touch.

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Posted: September 25th, 2026