Commercial Manager Sizewell C

Sizewell C Company; Sizewell; Hybrid; GBP 60,000 - 70,000; Full time

Benefits offered by this job

Health cover

Cycle-to-work

Hybrid working

Professional development

Job summary

Sizewell C is seeking a Commercial Manager to oversee the commercial administration of one or more SZC contracts, acting as the primary commercial contact and ensuring delivery in line with SZC governance.

You will manage essential site service contracts (catering, accommodation, FM, PPE), lead the team, handle payments, variations and close-out, and work with stakeholders across Nuclear New Build to maximise value and minimise risk.

Qualifications

• Experience with commercial management of large contracts.
• Familiarity with NEC Term Service Contracts and Cemar/SAP tools.
• Ability to lead and develop a team of commercial professionals.

Responsibilities

• Oversee commercial administration of one or more SZC contracts, pre- and post-contract.
• Act as primary commercial contact across SZC teams and stakeholders.
• Manage site service contracts (catering, accommodation, FM, PPE) and ensure governance compliance.
• Lead payment applications, variations, claims, and final accounts.
• Drive commercial close-out and value delivery while minimising risk.

Job description

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

Commercial Manager

Sizewell C

Location: London, Ipswich, Suffolk

Contract: Permanent, full-time.?

Closing date: 26 October 2026

What's in It for You

• Salary: Circa £63,522 (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, Hybrid working & ongoing professional development

The Commercial Manager is responsible, for any contract assigned to them, for all pre and post contract commercial issues relating to a contract on the SZC project.

Nature and Scope

The Commercial Manager is an important role within the SZC Supply Chain Group with accountability to the Senior Commercial Manager for the successful commercial administration of one or more SZC contracts. As such the Commercial Manager is empowered to make decisions around the Principle Accountability areas, under the overall guidance of the Senior Commercial Manager and in accordance with delegated levels of authority.As Commercial Manager you will be the primary point of commercial contact on the contract/s assigned to you and will you'll be required to work closely and pro-actively with the other stakeholders at all levels and across all the teams within Nuclear New Build to ensure that the requirements of the individual contracts and their impact upon the overall SZC Project are successfully delivered.

You will be responsible and accountable for:

• Key Site Operational based service contracts which are essential to the delivery of workforce needs, such as catering, accommodation, fixture furniture and equipment (FFE), personal protective equipment (PPE), and Facilities Management (FM).
• You will typically be responsible for a contract or range of contracts between £0-£50m in value subject to level of risk or complexity. Contracts entered into are typically from the NEC Term Service Contract (TSC) suite, and managed on Cemar.
• The day to day management of Assistant Commercial Assistants under your control.
• Providing commercial management of contracts during the execution phase (post-award).
• Commercial management for the delivery of contract final account agreements (close out).
• Responsible for the delivery of the contract in accordance with SZC governance requirements to meet SZC Project and business objectives.
• Professional development of self and people within the team.

Principal Accountabilities

Execution Phase

As Commercial Manager you're responsible for the commercial administration of the contract during the execution phase including commercially leading and managing the contract/s to successful completion to maximise operational and financial performance and minimise commercial risk in order to help support the safe and cost effective delivery of SZC programme and business objectives. You'll be responsible for knowing the contract including fundamental matters such as: Scope of Work / Services and Associated Programme; Prices and Rates Schedules; Key Personnel and Arrangements for Contract Administration, incentive arrangements along with administration of commercial management tools including, but not limited to, CEMAR and SAP.You will work with collaborative behaviours, in a spirit of mutual trust and cooperation by ensure that the strategy for collaborative working is followed in terms of leading by example in establishing effective collaborative arrangements with all parties in the integrated team. The Commercial Lead will seek to achieve 'win-win, equitable commercial outcomes for all parties. Contributing positively to the various collaborative working initiatives, team building activity and behavioural/relationship assessments and seek and act proactively and positively upon feedback on personal attitudes and behaviours, thereby adopting positive and proactive approaches to facilitate early commercial close out.

As Commercial Manager it's your responsibility for ensuring that all commercial activities are conducted throughout execution of the contract in accordance with SZC Supply Chain Procedures including:

• Participating in the contract kick-off meeting and organising the Supply Chain section of the meeting.
• Commercially Administering the contract including; Notices and Instructions; Applications, Invoicing and Payment; Variations and Changes; Disputes and Claims; Delays, Extensions of Time, Force Majeure and Liquidated Damages; Bonds and Guarantees; Intellectual Property Rights; Termination; Progress Monitoring and Financial Reviews; Liabilities; Confidentiality Agreements; etc.
• Management of the Accepted Programme.
• Manage all commercial correspondence and contractual notices issued in accordance with the contract conditions and SZC Supply Chain Procedures.
• Ensuring the timely production and administration of payment applications and invoices.
• Ensuring contractual deliverables are met