Project Manager- Site Establishment

Sizewell C. The power of good for Britain.

Project Manager - Site Establishment

Location: Leiston, Suffolk (5 days onsite)

Permanent | Full-time

Salary:  £75,000 - £85,000 per annum + benefits

Benefits:

• 28 days annual leave + bank holidays increasing to 30 days after 5 years


• Up to 5% bonus


• Pension:  up to 7.5% employee contribution and 15% employer contribution

• Flexible Benefits

Closing date Monday 22 June 2026

About the Role

We’re looking for an experienced Project Manager to join the Site Establishment team at Sizewell C one of the UK’s most significant infrastructure projects. You’ll support the early delivery of key infrastructure, including roads, rail, utilities, buildings, and security systems.

Reporting to a Senior Project Manager, you will lead the end-to-end delivery of work packages, covering design, procurement, construction, and commissioning, helping shape the infrastructure that enables the main site.

Key Responsibilities

• Define and manage the scope of work and its interfaces within the wider programme


• Secure and manage resources, ensuring Suitably Qualified and Experienced Personnel (SQEP) standards are upheld


• Develop and implement delivery strategies aligned with the Project Execution Plan (PEP)


• Maintain effective communication with internal and external stakeholders


• Drive safe, timely, and cost-effective execution of works


• Monitor progress against milestones, budgets, and deadlines


• Identify, manage, and escalate risks and issues as needed


• Ensure consistency across Level 1–3 schedules and review contractor rolling plans


• Deliver against the List of Deliverables (LOD) and apply Earned Value Management (EVM)


• Interface with other programmes to ensure alignment and adoption of best practices


• Fulfil all contractual obligations and maintain strong working relationships across teams


• Promote continuous improvement and ensure lessons learned are captured and shared

Project Scope & Dimensions

• Manage contracts valued between £250k and £150m


• Lead a team of up to 3-4 Assistant Project Managers, plus a matrix team including commercial, procurement, construction management, H&S, and environmental specialists


• Coordinate with up to 200 contractor staff and multiple external stakeholders


• Deliver infrastructure including commercial buildings, roads, hardstanding, and utilities

On-Site Responsibilities

• Lead and manage on-site project activities, ensuring adherence to timelines and budgets


• Collaborate with cross-functional teams to drive project objectives and milestones


• Oversee contractor and subcontractor activities, ensuring compliance with safety and regulatory standards


• Proactively identify and mitigate project risks to ensure smooth delivery


• Operate in a fast-paced, high-profile environment with multiple stakeholders and interfaces

What You'll Bring

• Proven experience as a Project Manager in large-scale infrastructure or commercial build projects


• Experience managing complex projects valued at £15 million+


• Strong leadership, communication, and stakeholder engagement skills


• Excellent problem-solving abilities and a proactive approach to challenges


• Knowledge of safety and regulatory standards in the energy or construction sector


• Experience with NEC3/NEC4 contracts and multi-programme construction environments


• Familiarity with Modern Methods of Construction (MMC) and innovative delivery approaches


• Ability to manage delivery in a dynamic, high-pressure setting with multiple interfaces


• Experience in contractor management and delivery of associated structures

Qualifications & Experience

• Degree and chartered status in engineering, construction, physics, or a related field


• Strong background in general construction, ideally with a civil engineering specialism in commercial buildings and road/hardstanding construction


• Good knowledge of CDM Regulations


• Practitioner-level understanding of project management methodologies (e.g. APM, Prince2)


• Strong numerical, analytical, and organisational skills


• Experience in PWR design and operations (desirable)


• Proficiency in MS Office, Primavera P6, and SZC systems such as Integrated Management System and Teamcenter (training provided)


• Familiarity with CEMAR contract management system is essential


• Professional memberships such as MAPM, RPP, MCIOB, or RICS are desirable (or working towards)

Are you ready to take the next step in your career?

Apply now and be part of something extraordinary.