Cyber Operations Manager

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 seeking an experienced Cyber Operations Manager to oversee day-to-day cyber security operations within a highly regulated and safety-critical environment.

You will be responsible for managing security monitoring, threat detection, vulnerability management, incident response coordination, and operational cyber resilience activities across the organisation. Working closely with Cyber Security, Infrastructure, Digital, Operational Technology, and third-party providers, you will ensure that cyber security controls and services operate effectively to protect critical systems and data.

This role offers the opportunity to contribute to a nationally significant infrastructure programme where operational resilience and cyber defence are essential.

Proven experience managing cyber security operations or security operations teams within large, complex organisations

Experience managing third-party cyber security providers and operational service delivery

Knowledge of cyber security frameworks such as NIST, ISO27001, CIS, or IEC 62443

Strong leadership, stakeholder management, and communication skills

Ability to manage competing priorities within high-pressure operational environments

Security Operations Centre (SOC) processes and technologies

SIEM, endpoint detection, and security monitoring platforms

Threat detection, threat intelligence, and incident response

Vulnerability management and cyber hygiene practices

Network, infrastructure, cloud, and endpoint security

Cyber security operational governance and risk management

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.

Competitive salary, comprehensive benefits, and opportunities for career development.

Flexible and hybrid working options.

Recognise the value brought from different cultures and experiences

Be open to other’s points of view and ideas, be willing to debate and to compromise

Positively challenge poor quality and performance

Identify solutions at the lowest possible level

Encourage tier 1s and others to bring new ideas forward

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

Communicate clearly and consistently

Promote collaboration and team alignment

Clearer and faster decision making

Drive simplification at all levels

If this sounds like the next step in your career, we’d love to hear from you. Apply today.

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.

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