Mechanical Design Engineer

Pertemps; Cardiff; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A multidisciplinary consultancy in Cardiff is seeking a Mechanical Design Engineer to join their growing team. Responsibilities include full lifecycle design of mechanical building services and collaboration with various engineering disciplines. Candidates should have a degree in Building Services or a related field and experience in producing design calculations and reports. The role also offers opportunities for professional progression and includes a comprehensive benefits package promoting wellbeing and career development.

Benefits

25 days annual leave

Access to Mental Health support

Professional development pathways

Performance bonus and car allowance

Qualifications

• Experience delivering mechanical designs from concept to completion.
• Proficient in producing calculations, reports, and detailed design solutions.
• Experience in undertaking site surveys and inspections.

Responsibilities

• Involved in the full lifecycle of mechanical design.
• Produce calculations and reports as part of a multidisciplinary team.
• Review construction details and provide technical commentary.

Skills

Mechanical building services design

Strong communication skills

CAD and BIM (Revit)

Education

Degree or HNC/HND in Building Services

Tools

Revit

IES modelling

Job description

Mechanical Design Engineer - 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.