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About the Role

We are seeking a Principal Electrical Building Services Engineer to join our growing Energy Networks team. This role offers an exciting opportunity to contribute to the design and delivery of major transmission and distribution projects across the UK and internationally. You will play a key role in developing building services solutions for converter stations, substations operational facilities, and other energy infrastructure projects, working within multidisciplinary teams to deliver innovative, sustainable, and technically robust designs.

Responsibilities

Deliver building services engineering designs for energy infrastructure and industrial facilities.
Produce and review detailed design calculations to support project requirements.
Prepare technical documentation including basis of design reports, specifications, assessments, condition reports, and procurement documents.
Develop and review detailed design drawings, layouts, and schematics covering HVAC, mechanical systems, electrical building services, water services, and associated infrastructure.
Collaborate closely with protection and control, civil, structural, primary plant, and other engineering disciplines.
Support the development of sustainable, energy-efficient, and resilient building services solutions.
Assist in the preparation of bids, proposals, and fee estimates.
Manage and coordinate project deliverables to agreed quality, budget, and programme requirements.
Ensure compliance with relevant legislation, standards, and Construction (Design and Management) Regulations.
Engage with clients, contractors, and other stakeholders throughout project delivery.
Mentor and support the development of junior engineers and graduates.

Requirements

Degree qualified in Building Services Engineering, Mechanical Engineering, Electrical Engineering, or a related discipline.
Chartered Engineer status, or working towards chartership, with CIBSE, IET, IMechE, or another relevant professional institution.
Experience delivering building services design within utility, industrial, energy, infrastructure, or other highly regulated environments.
Ability to produce and review technical reports, specifications, calculations, and design documentation.
Experience using industry-standard design software and engineering tools.
Strong understanding of relevant British and European standards, regulations, and engineering best practice.
Ability to work effectively within multidisciplinary project teams.
Excellent communication and stakeholder management skills.
Self-motivated with a proactive approach to problem-solving.

Skills

HVAC systems for industrial and utility buildings
Building Management Systems (BMS)
SCADA environments
AutoCAD
Revit
BIM workflows
Sustainability
Net-zero
Resilient infrastructure design principles

Location

Glasgow
Newcastle
Brighton
Altrincham
York
Croydon
UK

Work Type

Hybrid working

Experience Level

Principal

Education Level

Degree qualified in Building Services Engineering, Mechanical Engineering, Electrical Engineering, or a related discipline
Chartered Engineer status

Benefits

Pension contributions matched between 4.5% and 7%
Life assurance equal up to 4 x basic salary, with an option to increase to 6 x salary
Income protection scheme providing financial benefit, absence, and return to work support
Flexible benefits including increased life assurance cover, critical illness insurance, payroll saving, and will writing
Annual bonus schemes
Private medical insurance for all UK colleagues
Health cash plan
Access to Peppy for menopause support
Comprehensive wellbeing program
Ability to flex salary for a wide range of health benefits
Minimum of 33-35 days holiday each year, inclusive of public holidays
Ability to buy or sell leave
10 days additional paid leave for Armed Forces Reservists and Cadet Force Adult Volunteers
Holiday entitlement increased to a minimum of 35 days after 5 years’ service
Variety of employee saving schemes and discounts
Enhanced family leave policies
26 weeks paid maternity and adoption leave
Two weeks paid paternity/partner leave
Shared parental leave matching maternity leave (up to 24 weeks at full pay)
Up to five additional days leave for significant caring responsibilities (two paid)
Support for military families
Primary annual professional institution subscription
Opportunities to enhance technical and soft skills through mentoring, formal training, and self-development

About the Company

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.
The Energy unit delivers services to clients globally across a number of 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, through construction and operation, to decommissioning, repowering and life extension.
Together with our clients, we're helping to deliver the energy transition globally.
Within Energy, the Energy Networks (ETO) team provides multidisciplinary engineering services for electricity transmission and distribution infrastructure, supporting the delivery of substations, converter stations, grid connections, and other critical network assets required for the transition to a low-carbon future.

Equal Opportunity

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.