Commercial Assistant (Sizewell C)
The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs
Commercial Assistant
Sizewell C
Location: Leiston
Contract: full-time, 12 month Fix Term contract
Closing Date: Friday 1st May 2026
What’s in It for You
Salary: £32,000 per annum, depending on experience
Bonus: 5% annual incentive
Pension: Up to 7.5% employee / 15% employer contribution
Leave: 28 days holiday plus bank holidays
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. As Commercial Assistant, you'll provide essential support to the SZC Contracts and Procurement Team, working with senior stakeholders whilst maintaining the highest standards of integrity and confidentiality.
Key Responsibilities
• Team / Departmental support.
• Provide high level administrative support to the Commercial team
• Duties include complex diary and email management, preparing briefs and presentations, coordinating cross departmental communications and ensuring smooth daily operations of divisional office.
• Assist the secretariat for monthly Commercial Approval
• Assist the secretariat for the bimonthly Commercial Approval Committee (CODEM). This includes collating and distributing papers, ensuring submissions have correct authorisations, recording minutes and actions, and following up on decisions. The role acts as the deputy secretariat function for CODEM.
• Assurance, Audit & Regulatory administration
• Provide support to the assurance, audit, and regulatory compliance activities. Responsibilities include preparing documentation for audits, maintain registers (e.g risk, actions, tracking deadlines for submissions and organising evidence for internal / external reviews.
• Team Coordination
• Maintain confidentiality of all commercial and personal information
• Maintain data/records so that information is readily available and easily accessible
• Arrange meetings and co-ordinate the booking of rooms, arrange travel, accommodation, pool/hire vehicles and hospitality as required
• Creation of presentations and reports for the wider team
• Support to document management lead – management of the transfer of information
The successful candidate will be confident in working with many different people, you will also interface with other teams across the SZC Project, such as Finance, supply chain and Site delivery.
Skills & Attributes:
• The ideal candidate will have:
• 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).
• Good understanding of Power BI and other reporting tools
• Able to organise their own time and others, working in an environment where priorities and requirements can change quickly.
• Able to work largely unsupervised, and confident in personal organisation.
• Is comfortable talking to a wide range of people at lots of levels in a large organisation.
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 Assistant
Sizewell C
Location: Leiston
Contract: full-time, 12 month Fix Term contract
Closing Date: Friday 1st May 2026
What’s in It for You
Salary: £32,000 per annum, depending on experience
Bonus: 5% annual incentive
Pension: Up to 7.5% employee / 15% employer contribution
Leave: 28 days holiday plus bank holidays
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. As Commercial Assistant, you'll provide essential support to the SZC Contracts and Procurement Team, working with senior stakeholders whilst maintaining the highest standards of integrity and confidentiality.
Key Responsibilities
• Team / Departmental support.
• Provide high level administrative support to the Commercial team
• Duties include complex diary and email management, preparing briefs and presentations, coordinating cross departmental communications and ensuring smooth daily operations of divisional office.
• Assist the secretariat for monthly Commercial Approval
• Assist the secretariat for the bimonthly Commercial Approval Committee (CODEM). This includes collating and distributing papers, ensuring submissions have correct authorisations, recording minutes and actions, and following up on decisions. The role acts as the deputy secretariat function for CODEM.
• Assurance, Audit & Regulatory administration
• Provide support to the assurance, audit, and regulatory compliance activities. Responsibilities include preparing documentation for audits, maintain registers (e.g risk, actions, tracking deadlines for submissions and organising evidence for internal / external reviews.
• Team Coordination
• Maintain confidentiality of all commercial and personal information
• Maintain data/records so that information is readily available and easily accessible
• Arrange meetings and co-ordinate the booking of rooms, arrange travel, accommodation, pool/hire vehicles and hospitality as required
• Creation of presentations and reports for the wider team
• Support to document management lead – management of the transfer of information
The successful candidate will be confident in working with many different people, you will also interface with other teams across the SZC Project, such as Finance, supply chain and Site delivery.
Skills & Attributes:
• The ideal candidate will have:
• 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).
• Good understanding of Power BI and other reporting tools
• Able to organise their own time and others, working in an environment where priorities and requirements can change quickly.
• Able to work largely unsupervised, and confident in personal organisation.
• Is comfortable talking to a wide range of people at lots of levels in a large organisation.
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.