Commercial Manager

Great British Nuclear; Warrington; On-site; GBP 90,000 - 140,000; Full time

Job summary

Great British Energy - Nuclear is seeking an experienced Commercial Manager to support the procurement and commercial contracting for Civils Engineering and Civils Construction within our SMR programme. Role spans an estimated 10–12-year term with aggregate value over £1bn.

You’ll report to the Senior Commercial Lead and manage one or multiple procurements, shaping packaging, sourcing and commercial strategies and coordinating with Finance, Legal and Technical colleagues.

Qualifications

• Experience in nuclear, construction, engineering or critical infrastructure programmes.
• Strong NEC contract drafting and negotiation skills.
• Extensive experience with Government processes and requirements (CAB/CO/HMT) and developing business cases aligned to HMT Green Book.
• Public sector procurement knowledge desirable.

Responsibilities

• Lead procurement and commercial activity across the full lifecycle: strategy to tender to contract award to supplier mobilisation.
• Shape packaging, sourcing and commercial strategies, including mechanisms and incentive-based financial models.
• Oversee ITT development, pricing models, negotiation plans and contract documentation.
• Manage external contractors/consultants and budgets, and support approvals and business case processes.
• Collaborate with Finance, PMO, Legal and Technical teams to provide a seamless service.

Skills

NEC contracts

Nuclear/critical infra

Public sector procurement

Govt procurement processes (CAB/CO/HMT

Job description

Great British Energy - Nuclear is an arm's length body of the Department for Energy Security and Net Zero, dedicated to supporting the development and deployment of new nuclear technologies in Great Britain. We play a crucial role in advancing nuclear new build, ensuring the UK's energy security and achieving net-zero carbon emissions. Great British Energy - Nuclear focuses on fostering innovation, facilitating investment, and coordinating efforts across the nuclear industry to build a resilient and sustainable energy future.

Great British Energy - Nuclear's first step was to start the technology selection process for Small Modular Reactors (SMRs) in 2023. SMRs can potentially be quicker to deploy and less expensive to build than traditional nuclear power plants because they are smaller, have factory based modular manufacturing and more flexible deployment options. In June 2025, Great British Energy - Nuclear announced that Rolls-Royce SMR had been selected as the preferred bidder to build the UK's first SMRs, following a technology selection process that began in 2023.

Great British Energy - Nuclear is aiming to deliver fast, based on a supportive and collaborative culture which values equality and diversity and creates an inclusive workplace.

Our activities will be driven by our values, which are:

• Trust - We prioritise safety, we act responsibly and with integrity.
• Collaboration - We work as a team; we value diversity and expertise.
• Challenge - We are curious and courageous in the way wethink and act.
• Care - We are thoughtful, inclusive and respectful of others.
• Drive - We get things done and we make a difference.

If you have a disability and would prefer to apply in a different format or would like us to make reasonable adjustments to enable you to apply or attend an interview, please contact us at and we will talk to you about how we can assist.

Please note, there are both permanent and fixed term (2-3 years) opportunities available.

We're looking for an experienced Commercial Manager to support the development of the procurement and commercial contracting strategy for the Civils Engineering and Civils Construction element of our SMR Programme. These procurements will be fundamental to delivering SMR projects, spanning an estimated 10-12-year term, with aggregate value in excess of £1bn.

Reporting to the Senior Commercial Lead/Commercial Lead, you'll manage delivery of one or multiple procurements for complex, high-value construction and engineering contracts (typically £20m+, up to hundreds of millions), and set task delivery for commercial and procurement activity across the team.

What you'll do

• Lead procurement and commercial activity across the full lifecycle: strategy to tender to contract award to supplier mobilisation
• Shape packaging, sourcing and commercial strategies, including commercial mechanisms and performance-incentivising financial models
• Oversee key deliverables such as ITT development, pricing models, negotiation plans and contract documentation
• Manage external contractors/consultants and budgets, and support approvals and business case processes
• Work collaboratively with Finance, PMO, Legal and Technical colleagues to provide a seamless service

What we're looking for

• Relevant experience in nuclear, construction, engineering and/or critical infrastructure programmes
• Strong NEC contract experience (including drafting and negotiation)
• Extensive experience working to Government processes and requirements (CAB/CO/HMT) and developing business cases aligned to HMT Green Book
• Public sector procurement knowledge (PCR/Procurement Act) and CCS experience desirable