Job Description
Building Services Engineer – Salary up to £50K + Benefits - Cardiff
Are you a building services 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 Building Services 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.