Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards’ principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.  

Sizewell C is economically regulated by OFGEM under the RAB model similar to other UK electricity distribution networks and Thames Tideway.  

Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition. 

Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by; The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.

Senior Project Manager (Utilities and Infrastructure O&M) Site Operations

Location: Leiston, Suffolk, 5 days per week onsite.

Salary: Competitive, dependent on experience, plus benefits

Benefits include:

• Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
• Bonus: Up to 10% annual bonus.
• Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution 15% employer contribution.
• Flexible Benefits: Additional allowance for a variety of benefits.

Closing Date:  Monday 12 October 2026

Lead One of the UK's Most Significant Infrastructure Projects

Sizewell C is one of the UK's largest and most exciting infrastructure projects. We're looking for an experienced Senior Project Manager (Utilities & Infrastructure) to lead the operation and maintenance of critical site handed over built utilities and infrastructure that will support thousands of workers across the Sizewell C programme.

This is a unique opportunity to take ownership of a major operational portfolio, manage significant budgets, lead high-performing teams, and play a key role in delivering a nationally important project.

The Role

Reporting to the Site Operations Site Lead, you'll plan, lead and coordinate the operation and maintenance of wet and dry utilities, site infrastructure and  support the service delivery of the services across the Sizewell C footprint.You'll work closely with senior stakeholders, contractors and service providers to ensure safe, efficient and compliant operations while driving continual improvement and operational excellence.

What You'll Be Doing

• Leading Site Operations Utilities & Infrastructure operations and maintenance of handing over built assets across the Sizewell C site
• Managing Service Delivery Managers, PMs / APMs and specialist contractors
• Overseeing a portfolio with an annual budget of approximately £30m
• Driving health, safety, compliance and operational performance
• Managing stakeholder relationships across the project and supply chain
• Coordinating utility and infrastructure handovers from construction into operations
• Supporting future infrastructure, utilities and site operations projects
• Providing clear leadership, governance and commercial oversight

What We're Looking For

• Degree-qualified in Construction Management, Civil Engineering, Engineering or similar
• SMSTS or IOSH qualified
• Significant experience delivering infrastructure, utilities or major construction projects
• Experience working within a Principal Contractor environment
• Strong leadership, stakeholder management and programme delivery skills
• Proven commitment to safety, quality and operational excellence
•  Strong project controls, programme management and reporting experience.
• Experience In One or More of the Following Areas: Utilities Operations & Maintenance Infrastructure Management, Site Establishment, Logistics, Facilities Management, Earthworks , large Civil Engineering Projects

Desirable

• CIOB or MICE membership
• Experience on large-scale infrastructure projects

Why Join Sizewell C?

• Work on a nationally significant project
• Lead high-profile projects with real impact
• Competitive salary and bonus
• Excellent career development opportunities
• Collaborative and supportive team culture

If this sounds like the next step in your career, we’d love to hear from you. Apply today.

Behavioural Competences  

Humility

Recognise the value brought from different cultures and experiences

Be open to other’s points of view and ideas, be willing to debate and to compromise

Positivity

Positively challenge poor quality and performance

Identify solutions at the lowest possible level

Encourage tier 1s and others to bring new ideas forward

Respect

Value the rules and environment in which we operate

Give and receive feedback with respect

Embrace and engage with new people and ideas

Solidarity

One team, working closely together and helping each other

Empowered teams always looking forward.

Shared responsibility for delivery the project outcomes

Clarity

Communicate clearly and consistently

Promote collaboration and team alignment

Clearer and faster decision making

Drive simplification at all levels

When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email