Job Description

• Leading the development and maintenance of the Sellafield Site End State.
• Supporting projects and facilities to make decisions relating to end states and the final condition of soils and structures in the subsurface and managing decisions relating to the site’s end state.
• Developing and Maintaining the Site-Wide Environmental Safety Case (SWESC), to include delivering updates and new issues of the SWESC as required and working collaboratively with the team maintaining the Waste Management Plan (WMP).
• Ensuring end state and SWESC requirements are adequately reflected in Data, Records, Information and Knowledge (DIRK) arrangements within the business.
• Leading regulatory engagement on the Sellafield Site End State and associated deliverables.
• Leading stakeholder engagement on the Sellafield Site End State and associated deliverables.
• Working with NDA and other Operating Companies to share leaning and make improvements on Site End States.

Please note this is an EOI. Only individuals currently at grade 3B Upper are eligible to apply.

Principal Accountabilities

• 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.

The role holder will be accountable for:
• Developing and maintaining the Site End State.
• Maintaining a clear alignment of the SWESC to the agreed Site End State, including delivering the improvement plans.
• Ensuring that the SWESC is periodically reviewed in line with agreed dates and underpinned by technical assessments.
• Completion of appropriate technical assurance.

Knowledge & Experience

Essential Skills

• Higher scientific degree (MSc, PhD) alternatively, significant relevant work experience will also be taken into consideration.
• Member of a relevant professional body.
• Experience in the development and assessment of strategic options in support of strategic decision making; 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.

Desirable Skills

• Chartered in a relevant discipline.
• Experience in development 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.

Additional Information

• Open VN
• Number of Vacancies: 1
• Contact: Nick Atherton

Please note this is an EOI. Only individuals currently at grade 3B Upper are eligible to apply.

The interviews for this vacancy are expected to be towards the end of November.

ASW’s may have the right to apply for internal Sellafield Ltd vacancies. Please note if you are an Agency Supplied Worker you are required to attach evidence of all qualifications obtained to support your application. We require a minimum of A*-C GCSE in English, Maths & Science/IT or equivalent / higher qualification.

If you choose to apply for this role and your application is shortlisted by the hiring manager, you will be invited to a competency based interview. In the interview, you will be assessed against the below competencies:

Behavioural:
Drive for Results
Holding Self and Others to Account
Effective Communications
Resilience

Technical:
315.7 Environmental Protection
215.9 Knowledge and interpretation of regulatory requirements

Please see link to the competency framework for further information:
https://slportal.ssa-intra.net/pub/SC001/00027/Competency%20Framework/Forms/AllItems.aspx

If your technical competency is not in the above framework, please refer to the profession’s share point page for further information.

During the interview, you will also be expected to give a 10 minute presentation on ‘What are the key challenges and solutions to developing and maintaining the Site End State strategy for the Sellafield Site’

This presentation should be sent to recruitment@sellafieldcloud.co.uk via email at least two working days before your interview. You should also take four paper copies of your presentation to your interview in case of any IT issues on the day.

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 ensure that you save a copy of this advert for future reference if you make an application for this role.

What we’re proud of:

Environmental End States Specialist

Job number

SP06503

Profession

Technical

Location

Sellafield West Cumbria

Contract type

Internal Recruitment

Posting date

23 October 2025

Closing date

5 November 2025

Band

3B Upper

Work Schedule

Days