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Senior Commercial Manager (Sizewell C)

Job Category:  Construction Logistics
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

 

 

Senior Commercial Manager 
Sizewell C
 

Location: London, Manchester, Bristol
Contract Type:  Permanent - Office-based with hybrid flexibility (typically 2–3 days per week) 
Working Pattern: Full time 


Closing Date: Friday 8th May 2026 
 

 

Why Join Us? 
 

Sizewell C is one of the UK’s most ambitious infrastructure projects—a next-of-a-kind nuclear power station that will deliver clean, reliable energy for generations. Following our Final Investment Decision, construction is fully greenlit. This is your chance to lead at scale and play a pivotal role in Britain’s journey to energy security and Net Zero. 
 

What’s in It for You 


Salary: Competitive (depending on experience) 
Bonus: 5% annual target 
Holiday: 28 days + bank holidays 
Pension: Market-leading (up to 7.5% employee / 15% employer) 
Benefits: Health cover, cycle-to-work scheme, discounts & more 
Hybrid working & ongoing professional development.
 

We’re looking for a seasoned commercial professional with extensive experience delivering major programmes, ideally within heavy civils or large-scale engineering and infrastructure projects valued between £10m and £100m+. You’ll bring a deep understanding of construction technology, cost drivers, and supply chain management, combined with strong working knowledge of NEC3/NEC4 contracts—particularly in contract management and administration. Your ability to draft position papers, author change events, evaluate complex quotations, and produce clear commercial reports will set you apart.

 
What You’ll Do 


• Lead the commercial management of major programmes within heavy civils or large-scale engineering and infrastructure projects. 
• Manage and administer NEC3 and NEC4 Engineering and Construction Contracts, ensuring compliance with contract conditions and effective delivery. 
• Prepare and maintain key NEC documentation, including early warning notices, compensation events and programme submissions. 
• Draft position papers, prepare commercial reports and author change events to support project decisions. 
• Apply your understanding of construction technology, cost drivers and supply chain management to optimise outcomes. 
• Mentor and develop junior team members, building capability across the commercial function. 
• Engage confidently with senior stakeholders and clients, providing clear advice and updates. 
• Take ownership of challenges and deliver solutions from start to finish without the need for direction. 
• Contribute to strategic commercial planning and decision-making to support project success. 
 

What You’ll Bring 


• Proven experience in major projects and NEC3/4 or FIDIC contracts 
• Strong commercial, negotiation, and stakeholder management skills 
• Knowledge of UK contract law and procurement best practices 
• Degree or equivalent experience 
• Professional membership (RICS, CICES, IOB, CIPS) desirable 
 

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 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.

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.

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

 

 

Senior Commercial Manager 
Sizewell C
 

Location: London, Manchester, Bristol
Contract Type:  Permanent - Office-based with hybrid flexibility (typically 2–3 days per week) 
Working Pattern: Full time 


Closing Date: Friday 8th May 2026 
 

 

Why Join Us? 
 

Sizewell C is one of the UK’s most ambitious infrastructure projects—a next-of-a-kind nuclear power station that will deliver clean, reliable energy for generations. Following our Final Investment Decision, construction is fully greenlit. This is your chance to lead at scale and play a pivotal role in Britain’s journey to energy security and Net Zero. 
 

What’s in It for You 


Salary: Competitive (depending on experience) 
Bonus: 5% annual target 
Holiday: 28 days + bank holidays 
Pension: Market-leading (up to 7.5% employee / 15% employer) 
Benefits: Health cover, cycle-to-work scheme, discounts & more 
Hybrid working & ongoing professional development.
 

We’re looking for a seasoned commercial professional with extensive experience delivering major programmes, ideally within heavy civils or large-scale engineering and infrastructure projects valued between £10m and £100m+. You’ll bring a deep understanding of construction technology, cost drivers, and supply chain management, combined with strong working knowledge of NEC3/NEC4 contracts—particularly in contract management and administration. Your ability to draft position papers, author change events, evaluate complex quotations, and produce clear commercial reports will set you apart.

 
What You’ll Do 


• Lead the commercial management of major programmes within heavy civils or large-scale engineering and infrastructure projects. 
• Manage and administer NEC3 and NEC4 Engineering and Construction Contracts, ensuring compliance with contract conditions and effective delivery. 
• Prepare and maintain key NEC documentation, including early warning notices, compensation events and programme submissions. 
• Draft position papers, prepare commercial reports and author change events to support project decisions. 
• Apply your understanding of construction technology, cost drivers and supply chain management to optimise outcomes. 
• Mentor and develop junior team members, building capability across the commercial function. 
• Engage confidently with senior stakeholders and clients, providing clear advice and updates. 
• Take ownership of challenges and deliver solutions from start to finish without the need for direction. 
• Contribute to strategic commercial planning and decision-making to support project success. 
 

What You’ll Bring 


• Proven experience in major projects and NEC3/4 or FIDIC contracts 
• Strong commercial, negotiation, and stakeholder management skills 
• Knowledge of UK contract law and procurement best practices 
• Degree or equivalent experience 
• Professional membership (RICS, CICES, IOB, CIPS) desirable 
 

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 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.

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.

Apply now »