Commercial Manager (Civils Engineering & Construction) - SMR Programme
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 we think and act.
* Care - We are thoughtful, inclusive and respectful of others.
* Drive - We get things done and we make a difference.
This role can be based in either Warrington (Head Office) or London.
Job Profile
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 → tender → contract award → 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
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