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 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.

Internal Audit Manager, IT

Location: Manchester or London, with hybrid working and attendance in the office 2 to 3 days per week. Travel between Manchester and London will be required as and when needed.

Contract: Permanent, full-time.

Salary: £75,840 to £86,000 per annum, depending on experience + bonus + benefits.

Benefits include:

• Up to 10% annual bonus.
• 28 days’ annual leave, increasing to 30 days after five years of service, plus bank holidays.
• Opportunity to purchase extra holiday.
• Defined Contribution Pension Scheme with up to 7.5% employee contribution and 15% employer contribution.
• Private healthcare.
• Access to benefits portal offering a range of health, financial wellbeing and lifestyle options.

Closing Date: Wednesday the 7th of October 2026

Please note: We reserve the right to close this advert early if we receive a sufficient number of suitable applications, so we recommend applying as soon as possible.

The Opportunity

Sizewell C is looking for an experienced Internal Audit Manager specialising in IT to join our Finance function and help provide independent, objective assurance across technology, cyber security, data, operational technology and digital transformation risks.

This is a genuine manager-level opportunity for an established IT audit leader who can oversee several complex audits at once, lead engagements from initial planning through to final reporting and action tracking, and confidently challenge findings before they reach senior leadership.

You will direct and quality-assure the work of the Senior Internal Auditor, working alongside co-sourced audit providers and senior stakeholders across the organisation. You will also help shape our risk-based Internal Audit Plan, strengthen technology governance and controls, and support the continued development of our Internal Audit capability.

Why Join as an Internal Audit Manager, IT?

This role offers far more than responsibility for delivering individual audits. You will help shape the overall IT audit programme and provide assurance on some of the most important technology risks facing Sizewell C.

You will lead multiple audits simultaneously, manage and develop audit professionals, review and sign off work, challenge the quality of findings and reports, and provide clear assurance to senior leaders and governance forums. You will also have the opportunity to influence audit coverage as emerging technology, cyber threats and organisational priorities evolve.

With one direct report, this is an ideal opportunity for an established IT Audit Manager who enjoys combining hands-on technical audit leadership with people management, quality assurance and senior stakeholder engagement.

What You’ll Be Doing

As our Internal Audit Manager, IT, you will:

• Lead the delivery of multiple IT internal audit engagements from planning and fieldwork through to reporting, closure and action tracking.
• Oversee audits covering IT governance, cyber security, cloud services, IT operations, operational technology, digital transformation and data management.
• Review audit scopes, risk assessments, testing strategies, evidence, findings and reports to ensure a consistently high standard of work.
• Direct, coach and develop the Senior Internal Auditor, including workload allocation, performance management and development planning.
• Challenge findings and recommendations, ensuring reports are evidence-based, proportionate and clearly communicated.
• Build trusted relationships with senior stakeholders, acting as the primary Internal Audit contact throughout engagements.
• Provide assurance and insight to senior management and governance forums.
• Monitor emerging technology risks, cyber threats and regulatory developments and assess their impact on audit planning.
• Contribute to the development and continued refresh of the risk-based Internal Audit Plan.
• Coordinate effectively with co-sourced providers and other assurance teams to strengthen coverage and reduce duplication.

What We’re Looking For

The hiring team is particularly interested in candidates who offer a combination of both IT Audit and Internal Audit experience. This could be someone who started in technology audit and gained broader internal audit experience, or someone from internal audit who has developed strong technology risk expertise. Having exposure to both is essential. The successful candidate will have:

Recent and significant experience of IT internal audit.

A proven track record of leading IT internal audit engagements from start to finish.

Experience managing multiple concurrent audits within a large, complex or regulated organisation or a Big Four professional services environment.

Essential line management experience, including coaching and developing auditors.Experience reviewing and signing off the work of ot