Project Supervisor

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Job Description

About the role

Shape the future of green energy in the UK.

Join us at the heart of nationally significant infrastructure projects that are driving the transition to a low-carbon future. As part of our Pentir to Trawsfynydd reinforcement programme, you'll play a pivotal role in bringing critical energy networks to life-moving from the final stages of development into construction from 2026.

From day one, you'll be immersed in the full project lifecycle-supporting design development, overseeing construction, and guiding projects through delivery to successful commissioning. Once construction begins, you'll take ownership of a dedicated site, becoming the key on-the-ground leader ensuring work is delivered safely, efficiently, and to the highest standards.

As Project Supervisor, you'll act as the vital link between contractors and the organisation, championing a safety-first culture and ensuring compliance with all health and safety legislation, company standards, and contractual requirements. You'll also formally fulfil the role of Project Supervisor under NEC contracts, bringing structure, accountability, and confidence to every phase of delivery.

Given the nature of this role, you will be required to be onsite, in North Wales, 5 days per week.

About You

  • Project Management skills, including management of risk for delivery of projects to scope, time, cost, quality, safety and security of supply.
  • A proven track record of supervising construction in electricity transmission or comparable industry
  • An expert working knowledge CDM regs, Safety and Environmental legislation and practices, and quality management systems as supervisor under NEC contracts.
  • Client Representative experience.
  • Good interpersonal and communication skills, open and collaborative.

What you'll do

Health, Safety & Compliance


Supervise construction works to ensure they are completed safely and to the required quality standard, identify unsafe or non compliant activities and take immediate corrective action.
Champion safety and promote a strong Safe to Say culture across site activities.
Ensure compliance with health and safety legislation, including CDM Regulations 2015.
Review and accept contractors' RAMS and carry out regular safety audits
Work closely with the Senior Authorised Person to maintain site and safety from the system.
Ensure incidents, near misses, and accidents are reported and investigated correctly.


Site Supervision & Delivery


Monitor quality of workmanship and materials against approved documentation and standards
Review contractor quality documentation including Quality Plans, ITPs, and test results
Ensure construction activities align with the accepted programme and raise issues where non compliance is observed
Maintain accurate site records, inspection logs, and photographic records


Commercial & Contractual Support


Enact the role of Supervisor under NEC3/NEC4 contracts,
Monitor and confirm that the Works are executed in accordance with the Scope, accepted designs, specifications, and contractual requirements
Attend, witness, and record testing and inspections in line with Inspection and Test Plans (ITPs)
Identify, record, and notify Defects within the timescales set out in the contract
Issue Defects Certificates and confirm correction of notified Defects where applicable
Provide factual and timely reports to the Project Manager on site activities and compliance


Contractor & Stakeholder Management


Act as a professional interface between the Employer, Project Manager, and Contractor
Support effective communication and coordination across site stakeholders and third parties
Contribute to early identification of issues through NEC mechanisms (e.g. Early Warnings), without managing contractor delivery actions
Promote collaborative behaviours aligned with NEC principles while preserving contractual independence

What you'll get

A competitive salary between £47,000 - £55,000 - dependent on capability.

As well as your base salary, you will receive a bonus based on personal and company performance and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to a number of flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.

More Information

This role closes on 20th May 2026 at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

We work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation , and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.

We're committed to building a workforce that represents the communities we serve, and a working environment in which each individual feels valued, respected, fairly treated, and able to reach their full potential.

Please note that in most cases, National Grid is unable to offer sponsorship for employment under the UK points-based immigration system. As such, applicants must have the legal right to work in the UK without requiring sponsorship now or in the future under the UK points-based immigration system. However, in exceptional circumstances where there is a clear and demonstrable need for specialist skills that cannot be sourced from the local labour market, National Grid may consider offering sponsorship. All applications are welcome from candidates who meet these requirements, regardless of race, nationality, or ethnic origin.

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