Blend personal growth and professional development with purposeful work

At Sellafield Ltd, we are harnessing our expertise; bringing together world-class skills and innovative technology to solve complex nuclear, infrastructure, and engineering challenges. By joining Sellafield Ltd, you join an amazing team of people, from all walks of life, where you can thrive in a connected, considerate culture of innovation, collaboration, and community; and play a significant part in the UK’s sustainable nuclear future.​ The challenges we face are amongst the most complex anywhere in the world. We are using advanced technologies to shape, create and advance the world’s nuclear decommissioning knowledge and capability. That’s why our work is driven by people with a passion for problem-solving and innovation.

About the role

The Lead Cyber Security Consultant will support the Deputy CISO and wider Cyber Security and Information Assurance team in delivering strategic cyber security transformation through the development and implementation of cyber policies, security culture education and awareness initiatives, establishing cyber security profession standards, and ensuring cyber projects align with Sellafield Ltd strategy and statutory requirements (including those outside ONR regulation such as GDPR).

Key Responsibilities:

• Act as an internal cyber advisor, ensuring projects and initiatives align with cyber strategy and organisational objectives.
• Provide leadership and coordination in resolving complex or high-profile cyber security issues, facilitating stakeholder engagement and driving effective solutions to remove barriers and ensure progress.
• Serve as a key point of contact for colleagues across the organisation seeking guidance on cyber security matters, providing expert advice, clarifying the organisation’s cyber posture, and facilitating engagement with appropriate teams or resources.
• Support the development, implementation, and maintenance of cyber security policies, standards, and procedures.
• Provide oversight across project portfolios, checking that planned activity is on track and highlighting risks or misalignment.
• Conduct horizon scanning for new technologies, regulatory changes, technology and emerging threats (e.g. AI, compliance shifts), briefing leadership on potential impacts.
• Support assurance assignments to evidence compliance and alignment with the Sellafield Ltd cyber strategy and regulatory obligations.
• Participate in the establishment and development of a cyber profession within Sellafield Ltd, collaborating with HR, Learning & Development and other relevant functions.
• Monitor cyber security trends, threats, and emerging risks to inform decision-making and prioritisation.
• Engage with projects and business functions to ensure cyber requirements are understood and embedded within delivery approaches.
• Support the Deputy CISO with senior level incident management activities where required.

Your skills and qualifications:

• Demonstrable experience in cyber security and information assurance within a large, complex environment.
• Good understanding of cyber security frameworks, risk management, and assurance practices.
• Familiarity with regulatory and legislative frameworks such as ONR SyAPs, CAF, NIS/NIS2, DPA, and GDPR.
• Ability to communicate clearly and influence technical and non-technical audiences.
• Strong problem-solving and analytical skills.
• Capacity to operate autonomously and prioritise tasks effectively.
• Experience contributing to cyber security transformation programmes.

Skills considered Desirable

• Experience in the nuclear or regulated sectors.
• Professional certification (e.g., CISSP, CISM, ISO 27001 Lead Implementer/Auditor).
• Experience in cyber security programmes or change management.
• Familiarity with incident response and reporting in regulated environments.
• Experience with project assurance and business engagement.

Why us?

At Sellafield Ltd, we are committed to supporting our employees in fulfilling their potential. With 100 years of work in front of us, we offer comprehensive training and development opportunities, enabling you to feel inspired in your role. Whatever area you join us in, you’ll find a genuinely exciting and rewarding career.

Making sure our employees feel supported is important to us. Therefore, to help you get the most out of life in and outside of work, we also offer a range of employee benefits:

• You will benefit from an annual bonus of up to 10% – 15%, made up of company and personal performance.
• An attractive defined contribution pension scheme – the company will match up to 13.5% for a 7% employee contribution!
• 30 days annual leave + bank holidays. Plus, the ability to purchase an extra 2.5 days per year.
• The ability to carry over 10 days annual leave each financial year.
• Paid Sick Leave.
• Family Friendly Policies – Visit our Rewards & Benefits page to read more.
• Cycle to Work Scheme.
• Lifestyle Benefits sasra.co.uk
• Learning & Development Opportunities https://careers.sellafieldsite.co.uk/work-with-us/learning-anddevelopment/
• Reward & Recognition Policies.
• Welfare & Employee Assistance Programme.
• Free Aviva Health App & Annual Health Check.
• MyDiscounts – Employee Savings & Discounts.
• MyBenefits – A Charity Giving Scheme.
• Many, many more! Click this link to visit our Rewards & Benefits page: https://careers.sellafieldsite.co.uk/work-with-us/rewards-and-benefits/

Additional Information

• The closing date for this vacancy is 19th August 2026.

• In the event of a high number of responses to any advert, Sellafield Ltd reserves the right to close the advert early. Once closed, the advert will be removed from our website. We encourage you to submit your application as soon as possible to avoid disappointment.

• As part of the application process you will be asked to provide evidence of your qualifications. Attaching them at application stage will ensure a smooth process and prevent delays. A minimum of 3 GCSEs at Grade 4/Grade C or above in English, Maths & Science (or equivalent). Functional Skills Level 2 will also be considered as equivalent to GCSE Grade 4 (Grade C). Other equivalent qualifications may be considered.

• Please regularly check your Spam/Junk folders for news about this vacancy, correspondence could contain invitations to interview and other important updates.

• Sellafield Ltd are recognised as a Disability Confident Employer (Level 3). Disability Confident employers offer an interview to disabled applicants that meet the minimum criteria for a vacancy. Sellafield Ltd define the minimum criteria as the ‘essential skills’ which are listed on the vacancy notice. Whilst completing your application form, you will be able to indicate if you wish to be considered under the disability confident scheme. If you would prefer to discuss this directly with us, please contact the GBS Recruitment team on recruitment@sellafieldcloud.co.uk

• Please be aware that this role is subject to achieving security clearance. This role requires higher level of National Security Vetting where applicants must typically have 5 or 10 years of continuous residency in the UK. Factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the level of clearance you’re able to achieve.