Assistant Commercial Manager

London, GB, EC2R 7BP
Felixstowe, GB, IP10 0DD
Bristol, GB, BS32 4TP
Manchester, GB, M1 4HN

Career Area:
Supply Chain

Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards’ principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.

Sizewell C is economically regulated by OFGEM under the Regulated Asset Base (RAB) model similar to other UK electricity distribution networks and Thames Tideway.

Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition.

Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by;
The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.

Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects.

We’re looking for motivated a delivery‑focused Senior Project Manager with experience in large‑scale infrastructure, engineering or complex construction environments.

Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects. We are now recruiting the below position.

Location:

London

Contract:

Permanent, full-time.

Closing date: Friday 3rd July 2026

• Salary: £47,000 depending on experience
• Bonus: 5% annual incentive
• Pension:
  Up to 7.5% employee / 15% employer contribution

The Assistant Commercial Manager is responsible for the end-to-end procurement of business requirements assigned to them in support of the establishment of SZC as a standalone entity.

This includes identifying a range of third‑party services required to support the Projects objectives, developing procurement strategies, gaining Supply Chain Manager and Business Stakeholders “Buy in” and timely delivery of a portfolio of contracts to support the agreed procurement strategy.

The Assistant Commercial Manager is an important role within the SZC Supply Chain team, with accountability to the Supply Chain Manager for the successful commercial administration of multiple SZC contracts across the Project’s central functions. As such the Assistant Commercial Manager is empowered to make decisions under the overall guidance of the Supply Chain Manager and in accordance with delegated levels of authority.

As Assistant Commercial Manager you will be the primary point of commercial contact on the contract/s assigned to them and will be required to work closely and pro‑actively with the other stakeholders at all levels and across all the teams within the SZC Project. The post-holder will ensure that the requirements of the individual contracts and their impact upon the overall SZC Project are successfully delivered.

The Assistant Commercial Manager is responsible and accountable for:

• Managing the procurement process during the Procurement phase (pre‑award).
• Providing commercial management of contracts during the execution phase (post‑award).
• 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 others within the team.

Providing support to the procurement process and Supply Chain Manager/Supply Chain during the contract creation phase (pre‑award); including assessing the scope, duration and expected value of each of the Contracts against the budget and defining the commercial…