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Mechanical Design Enigneer - Cardiff
Building Services 

Your Opportunity
A skilled Mechanical Engineer is needed to join a growing design team in Cardiff. This role gives you the chance to broaden your technical expertise across a wide range of projects, play an active part in the development of the business, and collaborate closely with a supportive group of engineering professionals.
The Cardiff team has a strong and expanding presence throughout South Wales, contributing to projects reaching values of up to £200 million. Work spans tall buildings, student accommodation, colleges, schools, universities and blue-light facilities. You’ll have the opportunity to lead and support high-profile regional projects while also contributing to nationally significant schemes.

Role and Responsibilities
You’ll be involved in the full lifecycle of mechanical building services design, including:

Producing calculations, reports, performance assessments and detailed design solutions as part of a multidisciplinary team
Using CAD, BIM (Revit) and other specialist software to deliver compliant, coordinated system designs
Completing mechanical design calculations to demonstrate compliance with client requirements
Undertaking site surveys, inspections, defect reviews and witness activities
Reviewing construction details and providing technical commentary
Working closely with structural engineers, architects, surveyors and contractors across internal and external teams
Attending design meetings, project reviews and technical workshops
Ensuring all building systems meet legislative, statutory and health and safety obligations
Experience and Skills Required

Experience delivering mechanical building services designs from concept to completion, including drawings, specifications and calculations in line with RIBA stages and BSRIA BG6
A degree or higher education qualification (HNC/HND) in Building Services or a related discipline
Revit experience is beneficial
IES modelling experience is an advantage
Strong written and verbal communication skills
Support can be provided towards professional registration (EngTech/IEng/CEng) through an accredited mentor programme
About the Organisation
This is a multidisciplinary built environment consultancy that helps clients improve the performance, sustainability and long-term quality of their buildings and estates. With a diverse team of more than 1,400 specialists, the organisation brings technical depth, creativity and a collaborative mindset to thousands of projects each year. The culture is built on quality, ingenuity, long-term partnerships and a shared drive to deliver meaningful outcomes.
Your Benefits
The benefits package is designed to support your wellbeing, career and life outside work, including:

25 days annual leave plus the option to buy, carry over or sell days
Three paid volunteering days per year
Access to Mental Health First Aiders and wellbeing support tools
Life assurance, pension scheme and income protection
Medical insurance, private GP access and discounted gym membership
Hybrid working with flexibility to suit you and your team
Professional development pathways aligned to your career goals
Additional benefits such as performance bonus and car allowance depending on role and progression
The organisation is committed to creating an environment where everyone feels valued, supported and able to be themselves, recognising that people do their best work when they feel they truly belong