Identity and Access Management Lead

Sizewell C Limited; Greater London; Hybrid; GBP 56,000 - 78,000; Full time

Benefits offered by this job

Annual leave 28 days

5% annual bonus

Pension scheme

Job summary

Sizewell C Limited seeks an experienced Identity and Access Management Lead to define and operate a robust IAM capability across the Sizewell C programme. You will lead the strategy, governance and delivery of identity security services, ensuring secure access to critical systems and OT environments.

You will work closely with Cyber Security, Infrastructure, Digital and HR teams, as well as external suppliers, in a high‑impact, safety‑critical setting.

Qualifications

• Proven experience leading IAM or Cyber Security programmes in large, complex organisations.
• Experience within regulated sectors such as energy, utilities, infrastructure, defence, or nuclear.
• Extensive knowledge of IAM technologies and security controls.

Responsibilities

• Define, implement and operate a robust IAM capability across the Sizewell C programme.
• Lead strategy, governance and delivery of identity security services.
• Ensure secure and compliant access to critical systems, applications and OT environments.
• Collaborate with Cyber Security, Infrastructure, Digital, HR and third‑party suppliers.

Skills

IAM leadership

Regulated sector experience

Stakeholder engagement

Supplier management

Security governance

Tools

Entra ID / Azure AD

Active Directory

SSO

MFA

PAM

IGA

Job description

London, GB, EC2R 7BP Bristol, GB, BS32 4TP Manchester, GB, M1 4HN Felixstowe, GB, IP10 0DD Leiston, GB, IP16 4EW

Career Area: Data, Tech & IT

Identity and Access Management Lead

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 Regulated Asset Base (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.

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 Regulated Asset Base (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.

Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects.We are now recruiting the below position.

Identity & Access Management Lead

Location:

Based in London on a hybrid basis with travel to Suffolk as required.

Contract

Permanent, full-time.

Salary

Circa £66,866 per annum, dependant on experience, plus benefits.

Benefits include

• Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
• Bonus:5% annual bonus.
• Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution 15% employer contribution.

Closing Date

Thrusday 24th September 2026

Impact

We are seeking an experienced Identity & Access Management (IAM) Lead to define, implement, and operate a robust IAM capability across the Sizewell C programme.

You will lead the strategy, governance, and delivery of identity security services, ensuring secure and compliant access to critical systems, applications, and operational technology environments. Working closely with Cyber Security, Infrastructure, Digital, HR, and third-party suppliers, you will support the development of a resilient and scalable IAM function aligned with regulatory and industry best practice.

This is a high impact leadership role within a complex, safety critical environment where security, resilience, and operational excellence are essential.

About You

• Proven experience leading IAM or Cyber Security programmes in large, complex organisations
• Experience within regulated sectors such as energy, utilities, infrastructure, defence, or nuclear
• Extensive knowledge of enterprise identity and access management technologies, including Microsoft Entra ID (Azure AD), Active Directory, Single Sign-On (SSO), Multi-Factor Authentication (MFA), Privileged Access Management (PAM), and Identity Governance & Administration (IGA).
• Knowledge of cyber security frameworks and compliance standards
• Strong stakeholder engagement and leadership skills
• Experience managing suppliers and technical delivery teams

Why Join Us?

• Be part of one of the most important low-carbon energy projects in the UK.
• Work in a mission-driven environment that values innovation, integrity, and long-term sustainability.
• Comprehensive benefits, and opportunities for career development.
• Flexible and hybrid working options.

Behavioural Competences

Humility

• Recognise the value brought fromdifferent culturesand experiences
• Be open to other’s points of view and ideas, be willing to debate and to compromise

Positivity

• Positively challengepoor qualityand performance
• Identifysolutions at the lowest possible level
• Encourage tier 1s and others to bringnew ideasforward

Respect

• Value the rules and environment in which we operate
• Give and receive feedback with respect
• Embrace and engage with new people and ideas
• One team, working closely together and helping each other
• Empowered teams always looking forward.
• Shared responsibility for delivery the project outcomes

Clarity

• Communicate clearly and consistently
• Promote collaboration and team alignment
• Drive simplification at all levels

When joining Sizewell C, 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.

At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work.It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK.

To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.