Commercial Manager

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Job Description

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 aCommercial 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.

#DestinationNuclear

#SZCjobs

Power in Diversity

Sizewell C is a great place to work, where everyone is welcome.

To fulfil our commitment of doing the power of good for Britain, our ambition is to have a workforce which reflects and benefits the society we are part of and serve. Every worker on SZC, wherever they are, should help to create and experience the right environment where everyone on the team understands, respects and embraces diversity with a culture where everyone is treated with equal respect and are all given equal access to opportunities. By valuing the different points of view and experiences that having a diverse team brings, and by fostering an inclusive climate, we will create a great place to work and a more successful project.

We Create The Right Environment Where People Feel Able To Bring Their Whole Selves To Work. Whilst Working Together There Is Mutual Trust And Appreciation Created Through The Building Of Meaningful Relationships With One Another, Aligned With Our Key Values

Respect: Value the rules and environment in which we operate

Positivity: Positively challenge poor quality and performance

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

Solidarity: One team, working closely together and helping each other

Clarity: Communicate clearly and consistently

Sizewell C Limited (Sizewell C) is nuclear site licensed company whose business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Sizewell C was formerly under the majority ownership of the EDF Group but is currently majority owned by HM Government and operates as an independent company. EDF remains a key shareholder in Sizewell C and the business therefore maintains close links to EDF as a part of its ‘nuclear family’.

As a Sizewell C employee, you may wonder why you are contacted by colleagues with an EDF email, or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.

Additional Information

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 what will be one of Europe’s largest construction projects, while also helping Britain to reach its target of Net Zero emissions by 2050. That’s one of the reasons Sizewell C will be unlike anything you’ve ever experienced before, and you’ll need to be an exceptional professional to reach the high standards this critical infrastructure project demands.

The UK is experiencing a nuclear renaissance and Sizewell C – along with its sister project at Hinkley Point C in Somerset – is powering the change. We’re ramping up at pace as we look ahead to the Financial Investment Decision in early 2025, and the start of construction soon after. With government fully on board and public opinion shifting significantly in favour of nuclear, there’s never been a better time to join our project.

By submitting an application to this role, you acknowledge that you have read and understood Sizewell C’s employee privacy policy and EDF's employee privacy policy. Just to let you know, EDF will be processing and sharing information about your application on behalf of Sizewell C.

Seniority level

Seniority level
Mid-Senior level

Employment type

Employment type
Full-time