Mechanical Building Services Engineer

MOTT MACDONALD; Leeds; On-site; GBP 45,000 - 65,000; Full time

Benefits offered by this job

Private medical insurance

Pension matching 4.5–7%

Life assurance 4x salary

Flexible benefits

Bonus schemes

Job summary

Mott MacDonald in the UK is seeking a Mechanical Building Services Engineer to join our Building Services team. You will work on a range of private and public sector projects across major frameworks and one-off schemes, contributing to design, calculations, and energy performance.

You will have a degree in building services, be progressing chartership, and possess knowledge of current codes. The role offers hybrid working, career development, and opportunities to mentor junior engineers.

Qualifications

• Experience of mechanical engineering in the built environment, preferably within a consultancy business.
• Degree in building services engineering specializing in mechanical services.
• Actively working towards chartership.
• Up to date knowledge of current building regulations, legislation and standards.
• Proficient with NBS specifications and IES/TAS/H2X; BIM knowledge.
• Self-motivated with ability to work on own initiative and collaborate.

Responsibilities

• Prepare and review documentation (design basis, specifications, procurement specs, reports) for mechanical services.
• Conduct detailed surveys of mechanical services and propose upgrade design options.
• Produce and review mechanical design drawings and calculations (HVAC, water, drainage).
• Produce fee estimates for work elements.
• Advise on energy consumption and improvements for energy performance.
• Monitor design and project management of building services within programme.

Skills

Mechanical services

Building services design

NBS specifications

IES/TAS/H2X

BIM

Chartered (in progress)

Team collaboration

Education

Building services degree

Tools

NBS

IES/TAS/H2X

BIM software

Job description

Location/s: Manchester, Leeds, Sheffield, Cambridge, Glasgow; UK

Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices.

We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance – we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.

Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, you're surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, and each other, investing in creating the right space for everyone to feel empowered, included, and valued. Whatever your ambition, Mott MacDonald is where people come to be brilliant.

About the business unit

The Buildings Unit (BLD) has a major presence in Mott MacDonald’s regional offices throughout the UK and mainland Europe, providing a wide range of diverse and transferable cross-sector skills across five key Sectors; Advisory, Built Environment, Energy, Transportation and Water. We also provide local services to customers and technical leadership to the rest of the Group in these sectors.

Overview of the role

We are seeking a Mechanical Building Services Engineer to join our successful Building Services team. The role provides the opportunity to work on an exciting range of projects in both private and public sector, including major framework & infrastructure developments in addition to one-off projects. The role will be challenging, varied and offer opportunities for skills development and career development.

As the successful candidate, you will have a strong background and proficiency in Building Services Mechanical Engineering design and good technical competencies. Your strong written and verbal communication of technical issues to varied technical and non-technical audiences will be key to your success in the role.

Key responsibilities and duties include

• Preparation and review of documentation e.g. basis of designs, technical/design specifications, procurement specifications, assessment reports, survey reports, each tailored to a required stage of project completion, covering all aspects of mechanical services
• Implementation of detailed surveys of mechanical services and equipment to establish status of the existing installations and gain sufficient information to recommend new/upgrade design proposals
• Producing and reviewing mechanical design drawings and detailed calculations incl. HVAC, water, drainage, etc
• Producing fee estimates for work elements
• Advising on all aspects of energy consumption and utilisation with recommendations to improve energy performance
• Monitoring of the design and project management of building services elements of projects within agreed programmes
• Compliance with Construction (Design and Management) Regulations, current legislation and standards associated with all engineering aspects of delegated project
• Supporting/ mentoring/ coaching junior mechanical engineers and apprentices to develop their skill set

As you contribute to the collective growth of our team's capability, we will offer you exceptional opportunities for technical and management skillset development and long term career progression.

Candidate specification

Essential

• Experience of mechanical engineering in the built environment, preferably within a consultancy business
• A degree in building services engineering specialising in mechanical services
• Actively working towards chartership
• Up to date knowledge of current building regulations, legislation and standards applicable in building / infrastructure design environments
• Highly competent user/ knowledge of industry recognised software and mechanical engineer design tools including NBS specifications and IES/ TAS/ H2X
• BIM knowledge and experience
• Self‑motivated, with the ability to work on own initiative and the confidence to make decisions
• Ability to work well collaboratively, both internally and with external partners and sub‑contractors

Please be advised that offers for this role are conditional upon obtaining the appropriate level of Security Clearance.

Agile working

At Mott MacDonald, we believe it makes business sense for you and your manager to choose how you can work most effectively to meet your client, team, and personal commitments. We offer a hybrid working policy that embraces your well-being, flexibility, and trust.

Equality, diversity, and inclusion

We put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they can contribute.

Accessibility

We want you to perform your best at every stage in the recruitment process. If you are disabled or need any support to enable you to apply or attend an interview, please contact us at [e-mail] and we will talk to you about how we can support you.

We offer some fantastic benefits including

Financial wellbeing

• We match employee pension contributions between 4.5% and 7%.
• Life assurance equal up to 4 x your basic salary, with an option to increase the level of cover to 6 x your salary.
• Our income protection scheme provides a financial benefit, as well as absence and return to work support due to long‑term illness or injury.
• Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing.
• As an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes.

Employee Ownership

• Our employee ownership model means no external investors, just us, creating a culture of shared success.
• Our employees have a stake and a voice in our business, giving them a direct connection to our success through our personal and group performance bonuses.
• As your career grows, so does your stake, recognising your long‑term impact and contribution.
• Your voice matters, with the opportunity to connect directly with senior leadership through formal channels to help shape our future.
• For our senior roles you will have a direct pathway towards ownership from day one.

Health and wellbeing

• Private medical insurance for all UK colleagues.
• Health cash plan to support you with every day health costs and treatments.
• Access to Peppy, providing free support from menopause experts for all UK colleagues.
• A variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family.
• Ability to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too.

Lifestyle

• A minimum of 33-35 days holiday each year, inclusive of public holidays and dependent on level, with the ability to buy or sell leave through our flexible benefits programme.
• Holiday entitlement increased to a minimum of 35 days after 5 years' service.
• Variety of employee saving schemes and discounts from high‑street retailers.

Enhanced family and carers leave

• Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave.
• Our shared parental leave matches maternity leave meaning we pay up to 24 weeks at full pay.
• Up to five additional days leave are provided for those with significant caring responsibilities, two of which are paid.

Learning and development

• Primary annual professional institution subscription.
• A broad range of opportunities to enhance both technical and soft skills through mentoring, formal training, and self‑development options.

Networks, communities, and social outcomes

• Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.
• Make a difference within our communities through our social outcomes.