Assistant Commercial Manager

Assistant Commercial Manager
Location: Preferrably London, with occasional travel to Ipswich. Successful candidate must be prepared to travel to the London office 2-3 days per week, if required, and on occasion to Suffolk and Bristol.
Contract Type: Office-based, with hybrid working flexibility
Working Pattern: Full time
Closing date: 24/11/2026
Salary & Benefits
Salary: £42,000-£47,000 (depending on experience)
Bonus: 5% annual incentive
Pension: Up to 7.5% employee contribution, 15% employer contribution
Holidays: 28 days annual leave plus Bank holidays
Additional Benefits:
Ongoing professional development
Cycle-to-work scheme
Employee discounts and pricing
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.
Join Us at a Pivotal Moment in UK Energy History
Sizewell C (SZC) has recently secured Final Investment Decision (FID) approval, marking a major milestone in the UK’s energy future. As we transition into a standalone organisation, we’re laying the foundations for long-term success—and we’re looking for a Assistant Category Manager – Professional Services to support the Category Manager and help shape that journey.
About the Role
You’ll play a key role in delivering end-to-end procurement activities (source to contract) across SZC’s Corporate Functions by supporting the Category Manager in meeting the category’s objectives. You’ll support the development and execution of procurement strategies, manage stakeholder relationships, and ensure compliance with governance frameworks—all while driving continuous improvement and best practice.
This is a unique opportunity to be part of a high-impact project from the ground up, helping to build a fair, transparent, and commercially robust procurement environment, whilst continuing your growth within Procurement.
Key Responsibilities
Support the Category Manager with the following:
Lead and support procurement processes from strategy to contract award.
Manage commercial aspects of contracts during execution.
Build trusted relationships with internal stakeholders to support pipeline development.
Ensure compliance with SZC’s procurement policies and governance.
Collaborate with legal teams on contract terms and NDAs.
Develop RFP/RFQ packages and manage supplier engagement.
Maintain accurate procurement records and reporting dashboards.
Drive lessons learned and continuous improvement across procurement activities.
What We’re Looking For
Experienced in procurement in the Professional Services, Legal, Insurance, Business Intelligence categories would be preferential.
Strong stakeholder management and communication skills.
Experience in corporate functions procurement and contract negotiation.
Solid understanding of commercial law and contractual terms.
Proven ability to manage high-value, multi-d

Employment type
Full Time