The UK’s nuclear sector has entered a renaissance, with Nuclear Energy now a vital component as the country moves towards a target of Net Zero.
Assystem provides critical support to this mission, accelerating the decommissioning and remediation of our legacy assets with a view to enabling a swifter energy transition, in parallel overcoming some of the largest engineering and environmental challenges of our generation.
As a Global top 3 independent nuclear engineering organisation, Assystem is active across the full decommissioning lifecycle. In the UK, we work across the Civil and Defence nuclear estates, pioneering agile and fit-for purpose, customer-focused solutions, drawing on our established pedigree for delivery engineering excellence. Assystem have a proud heritage gained over decades both in the UK and overseas, (delivering, supporting, managing) some of the most complex engineering projects in decommissioning, repurposing legacy assets and key new build projects such as Hinkley Point C.
Job DescriptionSummary of the Role
The Project Manager (APM)/NEC3 Supervisor is responsible to the Senior Project Manager and has a key role in supporting the overall management and coordination of this capital infrastructure project. The Project manager element of the role requirements is to assists in strategic planning, risk management, and quality control throughout the project lifecycle. Effective communication with stakeholders, contractors, and team members is paramount, as is the ability to adapt to unforeseen challenges and changes in project scope. This position requires a strong understanding of project management principles and a proactive approach to problem-solving, contributing to the successful execution of capital infrastructure initiatives. The candidate will be required to deliver at pace and demonstrate effective application of programme and project management skills, tools and techniques.
For the NEC3 Supervisor element of the role, we are looking for an experienced NEC3/4 construction supervisor to support delivery of project which sits within a nuclear safeguarding setting. You will work collaboratively to ensure construction activities are delivered to the highest quality and safety standards. Previous experience on a large civil engineering project is essential as well as being a dedicated and motivated Supervisor. The work you will do will give you exposure to senior stakeholders and project teams, you will be part of a highly skilled and ambitious team.
Main Responsibilities
Support the Project Manager (PM) in the administration and management of NEC contracts (ECI, ECC & Short Form).
Assist in managing project financial performance, controlling expenditure against approved budgets and updating forecasts. 📊
Contribute to project assurance and gateway reviews, providing confidence to senior leadership and stakeholders.
Monitor contractor, technical support provider, and supply chain performance against contractual obligations.
Maintain productive working relationships with the supply chain throughout delivery. 🤝
💰 Commercial & Cost Control
Review and challenge duration and cost estimates, identifying critical dates and risks.
Apply financial metrics to track cost trends and forecast final costs.
Review and assess proposed changes, determining high-level impacts and advising on options.
Maintain accurate site records to support commercial processes (e.g. daily diaries).
Manage site-based records and document control.
🏗 Contract & Site Oversight
Act in accordance with NEC3 ECC principles, promoting mutual trust and respect.
Conduct inspections and tests to ensure compliance with the Scope.
Attend Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT).
Notify and manage defects through to completion and defects date.
Mark Equipment, Plant and Materials for payment purposes where applicable.
Advise the PM of any contractor performance concerns.
🦺 Health, Safety & Quality
Monitor Contractor Health & Safety performance on site and attend safety meetings.
Review Test & Commissioning documentation and manage commissioning team outputs.
Prepare quality performance reports and track Quality KPIs.
Support lessons learned capture and tracking throughout the project lifecycle.
🔗 Stakeholder & Operational Support
Liaise with base personnel and stakeholders to ensure efficient project delivery.
Support project optioneering and problem-solving activities.
Assist contractors in navigating base permit systems and training certification requirements.
Essential Skills & Experience
Minimum 5 years’ post-graduate experience in engineering or project delivery roles.
Strong technical background with engineering or project management qualifications (ONC/OND or equivalent in Civil Engineering or related discipline).
Excellent working knowledge of NEC3/NEC4 contracts and understanding of CDM and Health & Safety regulations.
SMSTS and CITB CSCS certified.
High attention to detail with a collaborative, solution-focused approach. 🤝
⭐ Desirable
Experience working on ONR/DNR regulated sites.
HNC/HND (or higher) in Civil Engineering or related discipline.
NEC4 Supervisor accreditation and/or NEC PM accreditation.
IOSH Managing Safely and First Aid certification.
Membership of a relevant professional body.
APM PMQ (or higher).
Why join the community of Switchers?:
🔹 The Group is currently ranked Third in the world for nuclear engineering.
🔹A dynamic career management policy to enable our employees to progress through our five business lines: operations, project, technical, sales and support functions
🔹Provide opportunities to work on exciting, global projects
🔹Access to an employee assistance programme with free mindfulness, health, wellbeing resources and a confidential support line available 24/7 via phone or text
🔹Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs
Security clearance:
Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.



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