Overview
Integrated Assurance Manager – London, ec2r 7bp, UK
Job Description
Location: London, occasional travel to Suffolk (Hybrid – 2 to 3 days in the office)
Contract Type: Office-based, with hybrid working flexibility
Working Pattern: Full time
Salary: Competitive salary, based on experience.
Benefits:
- 28 days holiday + bank holidays
- 10% annual performance bonus
- Market-leading pension (up to 7.5% employee contribution, 15% company contribution)
- Additional comprehensive benefits package
Closing date: Monday 20th October 2025
We operate on an office-based contract model, but support hybrid working where possible. This means you’ll need to be based within reasonable travel distance of the office and able to attend in person when business needs require—typically 2–3 days per week, though this may vary by team or project.
The Role
Sizewell C (SZC) is building Britain’s energy future — and we need brilliant minds to help us do it right. As Integrated Assurance Manager, you’ll play a pivotal role in shaping and embedding a robust assurance environment across one of the UK’s most complex and mission-critical infrastructure projects.
Reporting to the Head of Internal Audit, you’ll lead the ongoing development and enhancement of the enterprise-wide Integrated Assurance Framework that aligns and coordinates assurance activities across all lines of defence — from internal audit to nuclear safety, risk, regulatory compliance, and project controls.
Key Responsibilities:
- Design, implement, and maintain a fit-for-purpose Integrated Assurance Framework, aligned with the Integrated Assurance Strategy.
- Support the Head of Internal Audit and the Integrated Assurance Forum in embedding assurance practices across SZC.
- Collaborate with assurance providers to ensure alignment and consistency in assurance processes.
- Promote awareness and understanding of the Framework across the business through engagement and training.
- Develop KPIs and conduct periodic maturity assessments to evaluate Framework effectiveness.
- Lead the creation and delivery of an annual improvement plan based on assessment outcomes.
- Provide expert advice on assurance methodologies and their application across the organisation.
In 2026, areas of focus in addition to the above are likely to include preparation for Provision 29 of the UK Corporate Governance Code and supporting the enhancement of the fraud risk management framework.
What You’ll Bring
Essential:
- Proven expertise in assurance or internal audit at a senior level.
- Relevant professional qualification (e.g. CIA, CRMA, CMIIA, IRM, CRM).
- Strong experience coordinating Line 1, 2, and 3 assurance activities.
- Skilled in developing assurance plans in complex environments.
- Deep knowledge of assurance tools, techniques, and models (e.g. Three Lines, Risk–Control–Assure).
- Excellent communicator with strong leadership and stakeholder engagement skills.
- Experience in regulated industries or major capital projects (e.g. nuclear).
- Familiarity with standards like ISO 9001, ISO 31000, and digital assurance systems.
- Resilient, delivery-focused, and adaptable to change.
Why Join Us?
At Sizewell C, you’ll be part of a once-in-a-generation project that will power millions of homes with low-carbon energy. You’ll work in a dynamic, forward-thinking environment where your expertise will shape the future of UK energy infrastructure.
Apply now and help shape the next generation of nuclear energy at Sizewell C.
A full job description is available on application.
#DestinationNuclear
#SZCjobs
Power in Diversity
Sizewell C is a great place to work, where everyone is welcome.
To fulfil our commitment of doing the power of good for Britain, our ambition is to have a workforce which reflects and benefits the society we are part of and serve. Every worker on SZC, wherever they are, should help to create and experience the right environment where everyone on the team understands, respects and embraces diversity with a culture where everyone is treated with equal respect and are all given equal access to opportunities. By valuing the different points of view and experiences that having a diverse team brings, and by fostering an inclusive climate, we will create a great place to work and a more successful project.
We create the right environment where people feel able to bring their whole selves to work. Whilst working together there is mutual trust and appreciation created through the building of meaningful relationships with one another, aligned with our key values:
Respect: Value the rules and environment in which we operate
Positivity: Positively challenge poor quality and performance
Humility: Be open to other’s points of view and ideas, be willing to debate and to compromise
Solidarity: One team, working closely together and helping each other
Clarity: Communicate clearly and consistently
Everyone is able to get the most from their work and the workplace, and in return, give their best.
Sizewell C Limited (Sizewell C) is nuclear site licensed company whose business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Sizewell C was formerly under the majority ownership of the EDF Group but is currently majority owned by HM Government and operates as an independent company. EDF remains a key shareholder in Sizewell C and the business therefore maintains close links to EDF as a part of its ‘nuclear family’.
As a Sizewell C employee, you may wonder why you are contacted by colleagues with an EDF email, or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.
Additional Information
Join the team at Sizewell C. The power of good for Britain.
It’s not every day you get the opportunity to shape the working culture of what will be one of Europe’s largest construction projects, while also helping Britain to reach its target of Net Zero emissions by 2050. That’s one of the reasons Sizewell C will be unlike anything you’ve ever experienced before, and you’ll need to be an exceptional professional to reach the high standards this critical infrastructure project demands.
The UK is experiencing a nuclear renaissance and Sizewell C – along with its sister project at Hinkley Point C in Somerset – is powering the change. We’re ramping up at pace as we look ahead to the Financial Investment Decision in early 2025, and the start of construction soon after. With government fully on board and public opinion shifting significantly in favour of nuclear, there’s never been a better time to join our project.
By submitting an application to this role, you acknowledge that you have read and understood Sizewell C’s employee privacy policy and EDF’s employee privacy policy. Just to let you know, EDF will be processing and sharing information about your application on behalf of Sizewell C.
