Job Description Contract location: Suffolk, London or Bristol Contract Type: Office-based, with hybrid working flexibility (typically 2–3 days per week) Working Pattern: Full time We operate on an office-based contract model, but support hybrid working where possible. This means you’ll need to be based within reasonable travel distance of the office and able to attend in person when business needs require—typically 2–3 days per week, though this may vary by team or project. Flexibility to be on site when needed is essential. Closing date: Tuesday 2nd September 2025 Where can a Commercial Manager be a power for good?
At Sizewell C. We’re building one of the UK’s most important infrastructure projects — delivering clean, reliable nuclear energy to six million homes, cutting nine million tonnes of CO₂ every year, and creating thousands of skilled jobs. As a Commercial Manager, you’ll be at the heart of this mission — helping Britain reach Net Zero and shaping the future of energy. Your Role
Join our Supply Chain team and lead the commercial management of our Design, Engineering and Construction contracts. You’ll collaborate with Programme Delivery, Finance, Legal, and suppliers to ensure contracts deliver on cost, quality, and time. What you’ll do:
Manage contracts from tender to post contract final account Manage and support contract drafting and negotiations Transfer best practices from Hinkley Point C to Sizewell C Drive supplier performance and value for money What you’ll Bring
Proven experience in contract administration and commercial management (Consultant or Contractor experience is desired) Proven experience of NEC Contract management from Contract award to completion (Option A, C, E). Experience or knowledge of FIDIC is desirable Strong change management skills and experience in accordance with NEC / FIDIC Proven experience in cost forecasting and performance report production and monitoring Strong negotiation, influencing, problem solving and communication skills Ideally degree level qualified / chartered (RICS, MCIPS) A mindset for team-working, innovation, collaboration, and sustainability Good organisational skills with ability to quickly adapt to changing situations Ability to absorb complex information and assess requirements and make recommendations Experience of CEMAR Contract Management platform desired but not essential What’s in It for You
Salary: £52,000–£70,000, depending on experience. Bonus: 5% annual incentive Pension: Up to 7.5% employee / 15% employer contribution Leave: 28 days holiday plus bank holidays Benefits: Private health cover, Cycle-to-work scheme, Discounts & employee pricing, Ongoing professional development Why Sizewell C?
You’ll be part of a team tackling climate change head-on — in a culture that values inclusion, innovation, and doing the right thing by each other. Ready to shape the UK’s energy future? Apply now and be part of something bigger. Power in Diversity
Sizewell C is committed to creating a diverse and inclusive environment where everyone feels valued and respected. We believe diversity brings different perspectives and ideas, which are essential for our success. We foster an inclusive culture where everyone can bring their whole selves to work, building mutual trust and meaningful relationships, aligned with our core values: Respect, Positivity, Humility, Solidarity, and Clarity. Sizewell C Limited is a nuclear site licensed company responsible for designing, financing, constructing, operating, maintaining, and eventually decommissioning the nuclear power plant at Sizewell C in Suffolk. The project is currently majority owned by HM Government and operates as an independent company, with close links to EDF, which remains a key shareholder. Additional Information
Join the team at Sizewell C. The power of good for Britain. This is a unique opportunity to shape one of Europe’s largest construction projects and help Britain achieve its Net Zero emissions target by 2050. As the UK experiences a nuclear renaissance, Sizewell C is at the forefront of this change. We’re moving quickly towards the Financial Investment Decision in early 2025 and the start of construction shortly after. With government support and public backing, there’s never been a better time to join us. By submitting an application, you acknowledge that you have read and understood Sizewell C’s employee privacy policy and EDF's employee privacy policy. EDF will process and share your application information on behalf of Sizewell C.
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