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Principal Contractor Site Manager

M Group
The Village · posted 15 August 2026
Job type
contract
Location
The Village, Gwent
Category
Management and Consultancy
About The Role

Is this the role you are looking for If so read on for more details, and make sure to apply today.
Right across infrastructure, theres a requirement to not only maintain, but also renew and reimagine. Whatever stage youre at in your career, with us youll have an opportunity to grow and develop. Delivering essential infrastructure services for life, while being safety first, and client and customer centric in afriendly, fun and respectful environment where you are encouraged to thrive.
Where will you be working?
At M Group Energy, were enabling the energy essential to support our lives.
We provide an end-to-end service, delivering solutions in electricity transmission, distribution, renewable energy, EV, metering and home decarbonisation.
This role will be within our Transmission & Renewables team. We design, build and commission substations at voltages up to and including 400kV. Our teams construct and maintain transmission lines and substations, ensuring the efficient and reliable delivery of electricity.
This is a site-based position covering our substation framework across South Wales & South West England.
Want to come and be a part of it?
What will you be doing?
As a Principal Contractor Site Manager (M&E) , youll oversee major Substation works, ensuring safe, compliant, and high-quality execution from initial mobilisation through to successful handover. Day-to-day management of site operatives, subcontractors and site work
Development and implementation of Safety documentation including Construction Phase plans, site quality plans and Risk Assessments Method Statements
Sensible Monitoring of site operatives and subcontractors regarding Health and Safety, Quality and Environment
Identify training requirements for site personnel
Ensure full compliance with all Morrison procedures and current legislation
Client liaison whilst on site, including client audits
Chairing weekly coordination meetings
Procurement of materials
Planning and programming of current and future works, i.e. rolling programmes
Notify the Construction/Project manager of possible variations and keep suitable contemporary records
Compilation of documents and as-built drawings for Handover files
If youre passionate about driving teams, raising standards, and making a lasting contribution to critical national projects, wed love to hear from you!
What youll bring Extensive knowledge of construction methodologies within the Electricity Transmission industry
Competency to work in Substations up to 400kV inclusive
Knowledge of NEC contracts with Cost / Value reporting exposure
Knowledge of current legislation relating to Health, Safety and Environment
Skilled in organising resources and establishing priorities
Ability to communicate effectively, both orally and in writing
Ability to work within budget and to programme timescales
Ability to work within a team environment including clients, designers, H&S Advisers, site staff, quantity surveyors and estimators
IT literate, specifically in Microsoft Outlook, Word and Excel
Full UK driving licence must be prepared to travel across sites and work away where required
Desirable Qualified to a suitable level in Construction, Mechanical Engineering or an Electrical Engineering discipline
Previous or current authorisation to National Grid TP 137.11, which includes requirements for the following;
Understand the causes and consequences of Impressed Voltage IV awareness certificate or equivalent
Understand the requirements of relevant UK Health and Safety legislation, and in particular CDM Regulations.CITB Site Managers Safety Training Scheme/ NEBOSH General or construction certificate/IOSH Managing Safety Certificate
Understand the general requirements of BS5975:2008 concerning procedural control of Temporary Works. Temporary works supervisor authorisation
National Grid Competent Person Authorised
Understand the general requirements of UK Environmental and Waste Management legislation, EUSR certificate or equivalent
Understanding of avoiding underground services, HSG47 certificate or equivalent
Appropriate working knowledge of relevant current National Grid Transmission Procedures (TP) and Supplier Requirements(SR)

Whats in it for you?
We offer a range of benefits designed to support your life in and out of work, some of which include; Matched or contributory pension scheme
Online GP service, 24 hours a day, 365 days a year
Employee assistance programme
My Rewards portal, access to 1000s of retail discounts
Life assurance
Cycle to work, salary finance and give as you earn schemes
Enhanced maternity, paternity leave and adoption leave
Reward and recognition scheme
In addition, this role offers; Company car and fuel card with a range of EV and hybrid vehicles to choose from
My Car Choice our salary sacrifice EV/ Hybrid car scheme
Private health care and health care cash plan for you
Discretionary bonus scheme
25 days annual leave plus bank holidays
Recommend a friend get rewarded for introducing people to us!

About us
We want to be an employer of choice and a great place to work, attracting diverse and talented people, who join us and make a difference. Were one of the Top 100 UK companies actively supporting and recruiting army veterans. Our ENABLE inclusion networks bring together people who have a shared passion, to help create an environment where everyone belongs.
Our values help to shape our culture and how we work with one another. We recruit with these values in mind, to ensure your aspirations, and ways of working, align with ours. Were responsible and go further for our people, clients, communities and the planet
Were open and seek new and better ways of exceeding expectations
Were together and as one team; the whole is greater than the sum of the parts
Were ambitious and embrace opportunity, to lead essential infrastructure services for life

Whether youre a trainee, apprentice or graduate, or progressing through your career, our people benefit from industry recognised programmes, training and development.
Its an exceptional time to be a part of M Group.
Please note: Occasionally, job adverts might be closed before the stated closing date. Do apply as soon as possible to ensure your application is considered.

For certain roles, successful candidates will be subject to 3rd party background checks as part of the hiring process. xwzovoh Some roles require drug and alcohol testing as part of induction and onboarding.
#MGroupE #LI-BS1 #LI-Hybrid

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