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Commercial Manager (Sizewell C)

Job Category:  Other
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

 

 

Commercial Manager
Sizewell C
 

Contract Type:  Permanent - Office-based with hybrid flexibility (typically 3 days p/w in the office) 
Working Pattern: Full time
Closing Date: Thursday 30th July 2026
 

Location: London
Salary: Circa £66,000 depending on experience
Bonus: 5% annual incentive
Pension: Up to 7.5% employee contribution / 15% employer contribution
Holiday: 28 days plus bank holidays
Benefits: Flexible benefits
 

Impact:


We're looking for an experienced commercial professional with a strong track record in major infrastructure, engineering, or construction projects. Ideally, you'll have experience within heavy civils and knowledge of NEC3/NEC4 contracts. You'll be confident managing commercial activities across allocated contracts or work packages, supporting project teams, assessing change, managing risk, and helping to deliver successful commercial outcomes.
 

Your role will be to:


Manage the commercial administration of allocated contracts and work packages within major infrastructure projects.
Administer NEC3 and NEC4 contracts, ensuring compliance with contractual obligations and project procedures.
Prepare and manage commercial documentation, including early warning notices, compensation events, payment assessments, and programme submissions.
Review and evaluate quotations, subcontractor submissions, and change proposals.
Support the preparation of position papers, commercial reports, forecasts, and cost analysis.
Work collaboratively with project, engineering, procurement, and supply chain teams to ensure effective commercial delivery.
Identify, manage, and mitigate commercial risks and opportunities.
Build strong relationships with internal and external stakeholders, providing clear commercial advice and support.
Contribute to cost control, change management, and commercial governance processes.
Support senior commercial leadership in achieving project and business objectives.


What You'll Bring


Proven experience working within commercial management on major construction, infrastructure, engineering, or heavy civils projects.
Good working knowledge of NEC3 and/or NEC4 contracts.
Strong commercial awareness, contract management, and negotiation skills.
Experience preparing and administering compensation events, early warnings, and payment applications.
Ability to analyse commercial data and provide clear recommendations.
Strong stakeholder management and communication skills.
Knowledge of UK contract law and procurement practices.
Degree-qualified or equivalent industry experience.
Professional membership (RICS, ICES, CIOB, CIPS) desirable or working towards chartership
 

Why Join Us  


A major infrastructure project with national impact  
Hybrid working with flexibility built in  
Competitive salary, bonus and benefits  
Clear progression and development opportunities  
Supportive, collaborative team environment   
 

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.
 


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

 

 

 

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

 

 

Commercial Manager
Sizewell C
 

Contract Type:  Permanent - Office-based with hybrid flexibility (typically 3 days p/w in the office) 
Working Pattern: Full time
Closing Date: Thursday 30th July 2026
 

Location: London
Salary: Circa £66,000 depending on experience
Bonus: 5% annual incentive
Pension: Up to 7.5% employee contribution / 15% employer contribution
Holiday: 28 days plus bank holidays
Benefits: Flexible benefits
 

Impact:


We're looking for an experienced commercial professional with a strong track record in major infrastructure, engineering, or construction projects. Ideally, you'll have experience within heavy civils and knowledge of NEC3/NEC4 contracts. You'll be confident managing commercial activities across allocated contracts or work packages, supporting project teams, assessing change, managing risk, and helping to deliver successful commercial outcomes.
 

Your role will be to:


Manage the commercial administration of allocated contracts and work packages within major infrastructure projects.
Administer NEC3 and NEC4 contracts, ensuring compliance with contractual obligations and project procedures.
Prepare and manage commercial documentation, including early warning notices, compensation events, payment assessments, and programme submissions.
Review and evaluate quotations, subcontractor submissions, and change proposals.
Support the preparation of position papers, commercial reports, forecasts, and cost analysis.
Work collaboratively with project, engineering, procurement, and supply chain teams to ensure effective commercial delivery.
Identify, manage, and mitigate commercial risks and opportunities.
Build strong relationships with internal and external stakeholders, providing clear commercial advice and support.
Contribute to cost control, change management, and commercial governance processes.
Support senior commercial leadership in achieving project and business objectives.


What You'll Bring


Proven experience working within commercial management on major construction, infrastructure, engineering, or heavy civils projects.
Good working knowledge of NEC3 and/or NEC4 contracts.
Strong commercial awareness, contract management, and negotiation skills.
Experience preparing and administering compensation events, early warnings, and payment applications.
Ability to analyse commercial data and provide clear recommendations.
Strong stakeholder management and communication skills.
Knowledge of UK contract law and procurement practices.
Degree-qualified or equivalent industry experience.
Professional membership (RICS, ICES, CIOB, CIPS) desirable or working towards chartership
 

Why Join Us  


A major infrastructure project with national impact  
Hybrid working with flexibility built in  
Competitive salary, bonus and benefits  
Clear progression and development opportunities  
Supportive, collaborative team environment   
 

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.
 


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

 

 

 

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 »