Contract location: Suffolk, London or Bristol
Contract Type: Office-based, with hybrid working flexibility (typically 2-3 days per week)
Working Pattern: Full time
Closing date: Tuesday 2nd September 2025
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.
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 emissions 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
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 include 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 an inclusive environment where everyone is welcome. We value diversity and aim to reflect and benefit society through our workforce. We foster an environment where everyone feels respected, included, and able to bring their whole selves to work.
Join the team at Sizewell C. The power of good for Britain. It's not every day you get the opportunity to shape the working culture of one of Europe's largest construction projects, while also helping Britain reach its Net Zero emissions target by 2050. With government support and public backing, the UK is experiencing a nuclear renaissance, and Sizewell C is at the forefront.
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