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General information

Posting ID
GBN03
Type of employment
Permanent
Organisation
Great British Nuclear
Salary Banding MIN
£ 63300
Location
Sellafield
Salary Banding MAX
£ 63300
Workplace Type
Hybrid

Description & Requirements

Overview

Originally named, Great British Nuclear, 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.  

Job Profile

The Commercial Project Manager supports the effective delivery of major projects within Commercial. The role works closely with cross-functional teams to manage plans, interdependencies, risks, and resource commitments, ensuring delivery activities remain aligned. The role supports key assurance activities including business cases and gateway reviews and works closely with internal and external stakeholders to drive delivery.

Accountabilities & Responsibilities

  • Support the Commercial team with developing and maintaining detailed plans and schedules, working alongside the Commercial Senior Project Manager to produce and manage the overall commercial delivery plan.
  • Responsible for audit readiness, supporting commercial colleagues with project set up and ensuring effective delivery structures and documentation are established at initiation.
  • Coordinate with cross-functional teams to manage project dependencies, risks, and resource commitment and allocation.
  • Identify, assess, and mitigate risks, ensuring potential disruptions are addressed and managed proactively.
  • Maintain robust governance and be responsible for weekly reporting to drive key commercial activity and support informed decision-making.
  • Support the commercial team with assurance and approvals activities including key activities such as business cases and gateway reviews.
  • Identify and manage stakeholder relationships, including senior stakeholders where there is a need for senior level support.
  • Support commercial leads with resource planning, working with the Commercial Senior Project Manager to create an integrated Commercial resource plan.
  • Provide direction and guidance on the development of programmatic ways of working to the team and more broadly across GBE-N.


Knowledge, Skills & Experience Required:

  • Proven experience in managing complex projects within a fast-paced environment.
  • A strong understanding of risk management and the ability to anticipate, identify, and mitigate project risks.
  • Experience of developing and maintaining project plans and identifying and managing interdependencies.
  • Experience in supporting projects and programmes through government approvals and assurance processes.
  • The ability to establish and develop productive relationships with internal and external stakeholders, bringing people together to benefit the project.
  • The ability to influence, change and impact decisions with both internal and external stakeholders.
  • Experience in engaging, motivating, and mentoring colleagues.
  • Exceptional organisational skills, with a keen attention to detail and the ability to manage multiple projects simultaneously.
  • Experience in or prior knowledge of the nuclear sector is desirable.
  • Experience of project managing high value or complex procurements would be advantageous but not essential.


Qualifications

The following qualifications and skills are essential to the role and proof will be required at interview.

It is essential to hold at least one of the following qualifications:

  • Degree level qualification preferably in a relevant subject, or equivalent level of knowledge and experience.
  • Managing Successful Programmes Practitioner.
  • PRINCE2 Practitioner.
  • Managing Successful Programmes Advanced Practitioner.
  • P3O Practitioner.
  • Association for Project Management (APM) Registered Project Professional.
  • Project Leadership Programme.


Close Date:
Tuesday, July 7th

Accessibility:
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 recruitment@greatbritishnuclear.uk and we will talk to you about how we can assist.

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