Graduate Mechanical Building Services Engineering

Before making an application, please browse all graduate opportunities available as we will only accept one application per candidate. Once you have made an application you will not be able to make changes to your selection or make a new application. The exception is if we open new vacancies in the new year.

To avoid missing out on your preferred role, we recommend applying as early as possible, as positions will close once filled.

• Online strengths-based assessment
• Application form

CVs and cover letters are not required as part of the application process. Candidates will be assessed through a single-stage strengths-based interview.

Start your career with a global, employee-owned consultancy where your work can make a real difference. At Mott Mac Donald, you'll work alongside experts, contribute to meaningful projects, and have the support, learning opportunities, and experience needed to grow your career from day one.

At Mott Mac Donald, we believe every project is an opportunity to improve society. As a wholly employee-owned business, we’re committed to creating outcomes that benefit our clients, communities, and the environment.

As a Graduate Mechanical Building Services Engineer, you'll play a key role in designing the systems that make buildings safe, comfortable, efficient, and sustainable. Working alongside multidisciplinary teams, you'll help deliver innovative solutions for some of the world's most complex and high-profile projects, from healthcare and education facilities to commercial developments, transport hubs, defence infrastructure, and net-zero developments.

This is more than a graduate role. It's an opportunity to develop your technical expertise, work on meaningful projects, and build a rewarding career where your growth and wellbeing are supported from day one.

Building services engineering is at the heart of creating sustainable, high-performing buildings. As part of our Building Services team, you'll contribute to the design of mechanical systems that enhance building performance while reducing energy consumption and carbon emissions.

You'll gain exposure to all stages of project delivery, from concept and feasibility through to detailed design, construction, commissioning, and operation.

As a Graduate Mechanical Building Services Engineer, you will:

• Support the design and specification of mechanical building services systems, including heating, ventilation, air conditioning (HVAC), domestic water, and public health systems.
• Assist with the preparation of calculations, technical reports, drawings, and specifications.
• Contribute to sustainability and decarbonisation strategies, helping clients achieve net-zero carbon targets.
• Use industry-standard software and digital engineering tools to develop and coordinate designs.
• Work collaboratively with electrical, structural, civil, architectural, and sustainability specialists to deliver integrated solutions.
• Participate in site visits, inspections, surveys, and commissioning activities.
• Assist in analysing building energy performance and identifying opportunities for improved efficiency.
• Support project planning, programme management, cost control, and client interactions.
• Develop an understanding of relevant legislation, standards, building regulations, and industry best practice.

At Mott Mac Donald, we’re looking for curious, motivated graduates who want to make a real difference. Join our purpose-driven teams where your ideas matter, your growth is supported, and your work enhances the world we live in.

To be eligible for this opportunity, you will have less than 12 months’ relevant experience (excluding placements) and have a bachelors and a masters degree (obtained no earlier than 2025) or expected to achieve one of the following degree disciplines:

• Mechanical Engineering
• Building Services Engineering
• Architectural Engineering
• Energy Engineering
• Sustainable Building Design
• Building Environment Engineering
• Or a closely related discipline

This opportunity will require you to be eligible to achieve security clearance. Security clearance is dictated by the types of projects we work on and normally requires you to be a UK British national or lived in the UK for five years or more.

In your application, you should aim to demonstrate your genuine interest in both the opportunity and in joining Mott Mac Donald. You can do this by highlighting any relevant experience or…