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Commercial Assistant (Sizewell C)

Job Category:  Administration
Contract Partner Company:  Jobs Service
Employing Company:  Sizewell C

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

Commercial Assistant (Sizewell C)


Location: London  

Contract Type: Office-based, with hybrid working flexibility 
Working Pattern: Full time 


Why Join Us? 


We’re building the future. Sizewell C is a once-in-a-generation infrastructure project that will power Britain’s energy security and net-zero ambitions for decades to come. Following our recent Final Investment Decision, construction is fully greenlit. This is your chance to be part of the largest investment in homegrown clean energy in decades, delivering low-carbon electricity to 6 million homes for at least 60 years. 


We’re looking for Commercial Assistants to help us deliver one of the UK’s most ambitious infrastructure projects. If you’re ready to make a meaningful impact, this is your opportunity. 


What’s in It for you 


Salary: Starting salary of £40,000 (depending on experience) 

Holiday: 28 days + bank holidays 
Pension: Up to 7.5% employee / 15% employer contribution 
Flexible benefits & hybrid working options 


The Opportunity:


Join a friendly, diverse, and high-performing team directly involved in Europe's biggest construction project - delivering a reliable, low-carbon energy supply for decades to come. By joining our Supply Chain Frameworks Team, as a Commercial Assistant you will play a key role in supporting the delivery of professional services contracts on one of the UK's most exciting infrastructure projects.


Working closely with a Commercial Manager and the wider team, you'll gain hands-on experience in end-to-end contract management, stakeholder engagement, and commercial governance. This fast-paced role is perfect for someone who thrives on accuracy, prioritisation, and clear communication, while enjoying being part of a collaborative team that enables and supports both internal and external stakeholders.


With exposure to multiple contracts and opportunities for progression, this is an excellent step for anyone looking to build a career in commercial management.


Key Responsibilities


• Support the Commercial Manager and team in managing professional services contracts from initiation to completion, including NEC/FIDIC/Bespoke framework agreements.
• Assist with contract administration, including drafting, reviewing, and maintaining accurate documentation.
• Manage Applications for Payment, ensuring timely processing and accurate records.
• Prepare reports, trackers, and updates for senior management, including board-level documentation.
• Prioritise tasks effectively to meet deadlines in a high-volume environment.
• Support supplier relationship management across multiple framework contractors.
• Assist with contract value tracking and budget monitoring.


Skills & Attributes


• Excellent communication skills and attention to detail.
• Ability to build positive relationships with stakeholders at all levels.
• A proactive approach and willingness to learn.
• Strong organisational skills and ability to manage competing priorities.
• Proficiency in Microsoft Office (Excel, Word, PowerPoint).
• Degree in a relevant subject or working towards a commercial qualification (desirable).
• Experience in a commercial, contract administration, or project support role (desirable).
• Understanding of contract management principles (desirable).


What We Offer


• Exposure to end-to-end contract management and commercial processes on a major nuclear infrastructure project.
• Opportunity to work with multiple stakeholders across professional services frameworks worth hundreds of millions.
• A supportive team environment focused on collaboration and development.
• Clear progression pathways for those seeking career advancement.


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 

 

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

Commercial Assistant (Sizewell C)


Location: London  

Contract Type: Office-based, with hybrid working flexibility 
Working Pattern: Full time 


Why Join Us? 


We’re building the future. Sizewell C is a once-in-a-generation infrastructure project that will power Britain’s energy security and net-zero ambitions for decades to come. Following our recent Final Investment Decision, construction is fully greenlit. This is your chance to be part of the largest investment in homegrown clean energy in decades, delivering low-carbon electricity to 6 million homes for at least 60 years. 


We’re looking for Commercial Assistants to help us deliver one of the UK’s most ambitious infrastructure projects. If you’re ready to make a meaningful impact, this is your opportunity. 


What’s in It for you 


Salary: Starting salary of £40,000 (depending on experience) 

Holiday: 28 days + bank holidays 
Pension: Up to 7.5% employee / 15% employer contribution 
Flexible benefits & hybrid working options 


The Opportunity:


Join a friendly, diverse, and high-performing team directly involved in Europe's biggest construction project - delivering a reliable, low-carbon energy supply for decades to come. By joining our Supply Chain Frameworks Team, as a Commercial Assistant you will play a key role in supporting the delivery of professional services contracts on one of the UK's most exciting infrastructure projects.


Working closely with a Commercial Manager and the wider team, you'll gain hands-on experience in end-to-end contract management, stakeholder engagement, and commercial governance. This fast-paced role is perfect for someone who thrives on accuracy, prioritisation, and clear communication, while enjoying being part of a collaborative team that enables and supports both internal and external stakeholders.


With exposure to multiple contracts and opportunities for progression, this is an excellent step for anyone looking to build a career in commercial management.


Key Responsibilities


• Support the Commercial Manager and team in managing professional services contracts from initiation to completion, including NEC/FIDIC/Bespoke framework agreements.
• Assist with contract administration, including drafting, reviewing, and maintaining accurate documentation.
• Manage Applications for Payment, ensuring timely processing and accurate records.
• Prepare reports, trackers, and updates for senior management, including board-level documentation.
• Prioritise tasks effectively to meet deadlines in a high-volume environment.
• Support supplier relationship management across multiple framework contractors.
• Assist with contract value tracking and budget monitoring.


Skills & Attributes


• Excellent communication skills and attention to detail.
• Ability to build positive relationships with stakeholders at all levels.
• A proactive approach and willingness to learn.
• Strong organisational skills and ability to manage competing priorities.
• Proficiency in Microsoft Office (Excel, Word, PowerPoint).
• Degree in a relevant subject or working towards a commercial qualification (desirable).
• Experience in a commercial, contract administration, or project support role (desirable).
• Understanding of contract management principles (desirable).


What We Offer


• Exposure to end-to-end contract management and commercial processes on a major nuclear infrastructure project.
• Opportunity to work with multiple stakeholders across professional services frameworks worth hundreds of millions.
• A supportive team environment focused on collaboration and development.
• Clear progression pathways for those seeking career advancement.


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 

 

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 »