Play a significant part in the UK’s sustainable nuclear future.

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

We are seeking an Environmental End State Strategy Lead to manage the development, implementation and maintenance of the Sellafield Site End State. The role will support projects in decisions relating to site end state, taking responsibility for developing and maintaining the Site-Wide Environmental Safety Case (SWESC) and working collaboratively with the team to maintain the Waste Management Plan (WMP).

The role requires the individual to lead both regulatory and stakeholder engagement on the Sellafield Site End State and associated deliverables, working with NDA and other Operating Companies to share learning and make improvements on Site End States.

Key responsibilities

• Lead and support optioneering assessments comparing different end state options, development of the site end states and taking through assurance and governance.
• Lead development and maintenance of the SWESC, including delivering new issues/amendments, managing supporting radiological risk assessments, ensuring the requirement for a SWESC is embedded within the management system and liaising with the team maintaining the WMP.
• Staying up-to-date with relevant legislation and guidance, working closely with regulatory organisations and NDA.
• Procure and manage supply chain support for end states/SWESC work packages and act as intelligent client for SL.
• Manage contractor delivered work packages including managing budgets.
• Support facilities and projects regarding decisions that may impact on the end state.
• Work with the Head of Site Strategy and with the Decommissioning Strategic Authority to ensure oversight of decisions within SL that may impact on the site end state.
• Engage with regulators, the NDA and other external stakeholders to deliver end state strategy and SWESC development.
• Engage internally at SL to raise awareness of end states and SWESC requirements.
• Interface with decommissioning planning to ensure a joined-up approach to final stages of decommissioning and clean-up.
• Interface with Strategy and Planning to ensure alignment of strategy assumptions and outyears plans.
• Provide support to ensure Data, Information, Records and Knowledge (DIRK) arrangements adequately consider end state requirements.

Your Skills and Qualifications

• Higher scientific degree (MSc, PhD) alternatively, significant relevant work experience will also be taken into consideration.
• Member of a relevant professional body.
• Experience of land redevelopment projects, industrial sites, a background in treatment technologies, how to reduce waste, radioactive contamination etc
• Experience in the development and assessment of strategic options in support of strategic decision making and/or the development of tactical implementation plans to deliver the strategic intent.
• Experience of communication and engagement with stakeholders and regulators.
• Experience procuring and delivering work with the supply chain.

Skills Considered Desirable:
• Chartered in a relevant discipline.
• Experience in development/implementation of a Nuclear Site End State, or in development of associated guidance.
• Working knowledge of Site Wide Environmental Safety Case and/or radioactive waste disposal environmental safety case.
• Experience in the management/assessment of contaminated land and groundwater.
• Delivery of near surface disposal safety case.
• Delivery of radiological environmental risk assessment.

Why us?

At Sellafield Ltd, we are committed to supporting our employees in fulfilling their potential. With having 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 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. There is also the ability to purchase 3 additional days
• 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-and-development/
• 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/

Sellafield Ltd is a unique place to grow your career, offering a remarkable blend of role variety, job security, personal growth, professional development, and truly significant work. This is your opportunity to tackle some of the biggest challenges in the nuclear, infrastructural and engineering worlds and create a clean and safe environment for generations to come. Explore Sellafield Ltd today.

Additional Information

• The closing date for this vacancy is Monday 20th April 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.

• 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.