Principal Electrical Building Services Engineer

Company: Mott MacDonald

Location: Reading

Posted: April 26th, 2026

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 Energy unit delivers services to clients globally across several sectors including hydropower, nuclear, waste, renewable generation and transmission & distribution networks. Together we provide integrated engineering and project management services across the project lifecycle – from concept and design to construction and operations, to decommissioning or repowering and life extension. Together with our clients, we’re helping to deliver the energy transition globally.

About The Role

Join our Energy Unit’s National: Defence and Civil division as a Senior Electrical Building Services Engineer and get the opportunity to work on exciting projects within a highly regulated / secure sector. You’ll play a key role in managing and delivering electrical building services design solutions for single or multi‑discipline small and large scale projects, new and refurbishment projects or be part of an integrated project team, while contributing to technical excellence and collaborating with a successful team across the UK and Europe.

In this role, you will be an integral part of our wider engineering teams, working alongside various Clients and specialist suppliers to deliver innovative, technically excellent solutions.

You will be responsible for the management and delivery of electrical building services design solutions, commensurate to the design phase through sound engineering knowledge.

You will be able to work independently, be highly motivated, have demonstrable engineering experience and be confident in your own ability to deliver the electrical building services design scope for our projects.

Development Responsibilities

All our designs undergo the highest level of validation and verification before installation occurs and health & safety management is crucial to meet our Clients requirements.

Project Types

About You

Candidate Specification

Why Join Us?

We are actively recruiting a diverse workforce that is reflective of the communities we serve. We recognise that differences in ability, skills and experience are a strength and encourage applications from people of all backgrounds.

If you’re ready to lead and make a difference, apply now to be part of our team!

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

UK Immigration

Mott MacDonald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. We continue to welcome applications from candidates who are eligible for alternative immigration routes in the UK, that do not require sponsorship as a Skilled Worker now or in future.

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 reasonable.adjustments@mottmac.com and we will talk to you about how we can support you.

Benefits Overview

We offer some fantastic benefits including:

Health and Wellbeing

Financial Wellbeing

Lifestyle

Enhanced Family and Carers Leave

Learning and Development

Networks, Communities, and Social Outcomes

Apply now, or for more information about our application process, click here.

Location(s)

Altrincham, GB | Reading, GB | Bristol, GB | Derby, GB | Tadley, GB | Norwich, GB | Southampton, GB | Glasgow, GB

Contract Type

Permanent

Work Pattern

Full Time

Market

Energy

Discipline

Electrical

Job Ref

14371

Recruiter Contact

Erinda Hazizi

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