Site Operations Infrastructure - Assistant Project Manager (Sizewell C)

EDF Energy Limited; Leiston; Hybrid; GBP 55,000 - 65,000; Full time

Benefits offered by this job

5% CIP bonus

28 days holiday

Pension up to 7.5%/15% employer

Professional development

Lifestyle benefits

Closing day: 21 September 2026

Job summary

Sizewell C is seeking an ambitious Site Operations Infrastructure - Assistant Project Manager to support the day-to-day coordination of infrastructure operations and maintenance contracts on site at Leiston.

Reporting to the Site Operations Service Delivery Manager, you will work with contractors to deliver highway and utilities infrastructure, ensuring safety, budget, and schedule in a fast-paced, regulated environment.

Qualifications

• Experience in highways, infrastructure or major projects.
• Proven safety-focused delivery in a regulated setting.
• Experience managing contractors and stakeholders.
• Strong IT and communication skills.
• Ability to work in dynamic, fast-paced environments.

Responsibilities

• Support management of infra operation and maintenance contracts up to £10m annually.
• Coordinate contractors delivering construction and maintenance activities.
• Ensure compliance with statutory, regulatory and site rules.
• Monitor contractor performance against KPIs and safety standards.
• Support budgeting, forecasting and financial reporting.
• Maintain stakeholder relationships across functions.
• Assist with temporary works design coordination and changes.
• Ensure activities integrate with other contractors and teams.
• Contribute to weekly progress reviews and recovery planning.
• Support monthly safety, performance and planning reporting.
• Champion a 'one team' approach.
• Maintain health, safety and environmental standards.

Skills

Highways infra experience

Regulated environment

Contractor management

IT & stakeholder management

Large projects experience

Dynamic fast-paced work

Organizational skills

Decision making

Collaborative mindset

Education

HND/HNC or equivalent

Tools

AutoCAD

Microsoft Project

Microsoft Office

Job description

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Site Operations Infrastructure - Assistant Project Manager (Sizewell C)

Job Category: Project Management / Controls

Contract Partner Company: Jobs Service

Employing Company: Sizewell C

The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs

Site Operations Infrastructure - Assistant Project Manager
Sizewell C

Location: Sizewell C, Leiston, Suffolk (5 days a week on-site)
Contract: Permanent, full - time.
Salary: £55,000 - £65,000 dependent on experience.

Benefits:

• 5% CIP bonus
• 28 days holiday, plus bank holidays
• Contributory pension of up to 7.5% employee/15% employer
• Ongoing professional development
• Other lifestyle benefits
• Closing day: Monday 21st September 2026

Help Deliver One of the UK's Largest Infrastructure Projects

Sizewell C is at the heart of the UK's clean energy future. We're looking for an ambitious and proactive Assistant Project Manager to join our Site Operations Infrastructure team and play a key role in supporting the delivery and maintenance of critical infrastructure across the Sizewell C project.

This is an exciting opportunity for someone with experience in highways, infrastructure maintenance, construction operations, or major project delivery environments who thrives in a fast-paced and highly regulated setting.

The Opportunity

Reporting to the Site Operations Service Delivery Manager, you will support the day-to-day coordination and management of infrastructure operations and maintenance contracts that enable the safe and efficient running of the Sizewell C project.

You will work closely with contractors and stakeholders across a diverse range of activities, including:

• Highway maintenance and minor civils works
• Temporary and permanent infrastructure assets
• Site access roads and pedestrian routes
• Security access plazas
• Temporary buildings and facilities
• Utilities and support infrastructure
• Off-site property maintenance activities

As part of the Site Operations team, you'll help ensure services are delivered safely, efficiently, on time and within budget while supporting a peak construction workforce of approximately 8,000 people.

Key Responsibilities

• Support the management of infrastructure operation and maintenance contracts with values of up to £10m annually.
• Coordinate contractors delivering construction, maintenance and operational activities across site.
• Ensure compliance with all statutory, regulatory and site-specific requirements.
• Monitor contractor performance against KPIs, SLAs, safety standards and project objectives.
• Support budget management, forecasting and financial reporting activities.
• Manage stakeholder relationships across multiple functions and disciplines.
• Assist with temporary works design coordination and design change management.
• Ensure construction and maintenance activities are effectively integrated with surrounding contractors and project teams.
• Contribute to weekly progress reviews and recovery planning where necessary.
• Support monthly reporting on safety, performance, financials and future planning.
• Champion a collaborative "one team" approach across contractors and project stakeholders.
• Promote and maintain the highest standards of health, safety and environmental performance.

About You

We're looking for a motivated individual who enjoys solving problems, managing competing priorities and working collaboratively across large-scale projects.

Essential Experience & Skills

• Experience working within a highways, infrastructure, construction or service-led operational environment.
• Proven experience delivering work safely in a highly regulated setting.
• Experience managing contractors, teams or service providers.
• Strong IT, communication and stakeholder management skills.
• Experience within large, complex projects.
• Ability to work effectively in a dynamic and fast-paced environment.
• Strong organisational and problem-solving skills.
• Confidence to make decisions and manage changing priorities.
• Collaborative approach with a commitment to building positive working relationships.

Desirable Qualifications & Experience

• HND, HNC or equivalent qualification in a related discipline.
• Experience with road and network construction projects.
• Experience delivering modular building projects.
• Experience managing vehicle and pedestrian access infrastructure.
• Knowledge of construction quality assurance and quality control processes.
• Experience using Microsoft Project and Microsoft Office applications.
• AutoCAD experience.
• Experience developing and managing project budgets.

For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.

Why Join Us?

For more than 60 years, nuclear power stations in the UK have been quietly keeping Britain fuelled with massive amounts of home-grown energy.

Our teams up and down the country are proudly continuing to serve the nation – but they also have an eye on the future.

EDF is leading the UK's nuclear renaissance with the construction of a new nuclear power station at Hinkley Point C and plans for a new power station at Sizewell C in Suffolk.

Nuclear power is the most reliable, low-carbon energy source currently available to the UK. EDF is playing a key role in the development of nuclear sites, while Hinkley Point C will provide low-carbon electricity to meet 7% of the UK demand. The project is already making a positive impact on the local and national economy as well as boosting skills and education.

We’re not just building new nuclear power stations. We’re developing careers, upskilling generations and creating thousands of employment and apprenticeship opportunities across a variety of skills areas.

It takes a special kind of person to work in the nuclear energy industry and although we have thousands of them there’s always a need for more.

Our industry has a mind-boggling range of opportunities and more jobs, and in more places, than you might think. But it’s also an industry which is changing.

We’re a responsible business and proud to be Britain’s biggest generator of zero carbon electricity. With size, age and experience, we believe we can do even more.