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.
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...
We are seeking Analysts to join our well established and developing Analytical Services team to carry out extensive analytical techniques on samples across the site, from simple wet chemical techniques to complex instrumentation including spectroscopy, chromatography and radiometric techniques. Working across several laboratories on the Sellafield site you will have exposure to a broad range of analytical methods with opportunity to become a true expert in your field. We invest heavily in our people and offer a variety of opportunities to gain academic qualifications and access training with excellent career pathways to truly develop our employees. We will provide training in both controlled area working and standard laboratory operations, and as you will be working on the biggest decommissioning site in Europe, the scope and variety of work is truly incredible!
Qualified to HNC/HND level, or equivalent, in Chemistry or a science related subject. Ability to work both as part of a team and individually. Good IT skills. Ability to work well under pressure and to be able to meet tight deadlines. Ability to work within a controlled area. Previous experience in a laboratory environment. Hold or have the ability to gain SC clearance. Qualified to degree level, or equivalent, in Chemistry or a science related subject. Problem solving and troubleshooting skills. Previous experience working in radiologically controlled environments. Knowledge and experience of quality management systems (ISO 17025). Membership of relevant professional body. Open VN Number of Vacancies: 8 Contact/s: Ben Walker The interview dates for this vacancy will be confirmed in due course. 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. Competencies will be advised in due course. 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...
To lead and assure the engineering function across a complex, high-value project delivery organisation. The Chief Engineer ensures technical excellence, regulatory compliance, and strategic alignment across the asset lifecycle — from concept to decommissioning. This role drives engineering authority, capability development, and innovation to enable safe, efficient, and mission-critical delivery.
Shapes the organisation’s engineering strategy to align technical delivery with long-term mission outcomes. Influences senior decision-making through expert advice and systems-level insight to ensure engineering supports strategic priorities. Owns and leads the engineering assurance framework to ensure compliance with legislation, internal standards, and regulatory expectations. Acts as the final Engineering Authority on high-risk or novel solutions to safeguard technical integrity and manage escalation. Drives lifecycle engineering strategies to optimise asset performance and reliability to arrest degradation and maximise value. Leads engineering delivery across major frameworks (IDP and PACE) to integrate design, construction, commissioning, and handover for effective portfolio execution. Oversees centralised engineering services to provide specialist support and resolve cross-cutting asset issues to improve operational resilience. Leads engineering strategy for manufacturing and product development to deliver innovation and ensure technology readiness for mission delivery. Develops and deploys engineering capability across the profession to ensure long-term capacity, succession, and resource optimisation. Builds trusted relationships with regulators, suppliers, and industry bodies to influence standards and ensure alignment with external expectations. Champions continuous improvement and LEAN thinking across engineering functions to enhance delivery efficiency and technical performance. Manages a combined engineering budget of £395m pa to ensure strategic investment and value for money across services and programmes. Knowledge Multi-Disciplinary Engineering – Strong technical foundation across civil, mechanical, electrical, and systems engineering disciplines. Regulatory Frameworks – In-depth understanding of UK nuclear regulations, safety cases, and quality systems. Asset Lifecycle...
Job Purpose: To deliver a comprehensive personnel security and vetting aftercare service across Sellafield Ltd and its supply chain, ensuring compliance with regulatory requirements and promoting a proactive security culture. The jobs encompass both investigative case management and stakeholder engagement to mitigate insider threats and support national security vetting processes.
Conduct detailed personnel security interviews and background investigations in accordance with government and organisational standards (e.g., HMG Baseline Personnel Security Standard, NSyP, ONR guidance). Manage individual cases involving potential security concerns, conducting proportionate investigations and risk assessments in collaboration with line managers, HR, Occupational Health and law enforcement. Provide support to SL employees, contractors and ASWs undergoing personal changes to maintain their National Security Vetting (NSV) clearance. Act as the single point of contact for vetting aftercare matters across SL and the supply chain. Develop and maintain relationships with key internal and external stakeholders to provide expert advice on Personnel Security and Vetting Aftercare best practices, enhancing organisational capability and capacity. Manage, retain, and dispose of confidential personal data to ensure full compliance with Data Protection regulations and safeguard individual privacy. Monitor personnel activity through various channels to detect and address suspicious or irregular behaviour. Support early intervention efforts to minimise the risk of insider threats and maintain personnel reliability. Liaise with CNC, Cumbria Constabulary, ONR-CNSS, trade unions and other strategic stakeholders to support investigations, ensure regulatory compliance and align on security objectives. Promote a proactive security culture by contributing to improvement initiatives, delivering development workshops and raising awareness of vetting aftercare and insider threat mitigation across SL and its supply chain. Manage and maintain key programmes such as the Enhanced Target Testing Programme (ETTP) and the National Security Screening Programme (NSSP). Support the administration and continuous improvement of vetting aftercare...
Key role in ensuring that cyber security is embedded by design into digital, enterprise, and operational technology systems. This role supports the development and implementation of security architectures and standards across the organisation, delivering expert technical input and advising projects and programmes to reduce cyber security risk. Working across the three areas (Enterprise, Security, and Operational Technology), the role provides critical input to protect sensitive systems, data, and infrastructure in a nuclear-regulated environment. Job Context and Challenges: The role operates within a complex and regulated environment where security by design is critical to operational safety and national infrastructure protection. Cyber Security Architects must balance technical depth with risk-based pragmatism and be able to operate across a wide range of technology domains. The introduction of these roles is part of a growing cyber capability within the organisation, aligned to the Cyber Assessment Framework (CAF) and wider Digital Strategy. Architects will need to collaborate with colleagues across IT, OT, and business functions to ensure security is embedded consistently.
Support the development and implementation of security architectures and patterns aligned to enterprise strategy, regulatory expectations and control standards. Provide technical guidance and assurance on cyber security design during project and solution delivery. Translate business and technical requirements into secure architectural designs. Collaborate with Enterprise, Solution and OT Architects to ensure security is integrated into all designs. Assist in defining and maintaining security standards, guidelines, and reference architectures. Participate in technical design authorities and review boards, representing cyber security concerns. Keep abreast of emerging cyber threats and technologies to provide forward-looking security architecture advice. Provide clear and actionable cyber security advice to a range of technical and non-technical stakeholders. Support risk assessments, threat modelling and security control selection. Champion a ‘Secure by Design’ approach across ISO/ICT. Authorities & Dimensions No direct budget or line management responsibility. Responsible for providing technical cyber security advice and assurance. Operates across multiple technical domains and project teams. May lead work packages or task teams within wider architectural initiatives. Degree or equivalent experience in cyber security, information systems, or a related technical field. Demonstrable experience in a technical cyber security role. Knowledge of enterprise IT systems, networks, cloud platforms (e.g. Azure), and associated security practices. Familiarity with secure design principles and architecture frameworks. Strong written and verbal communication skills, with the ability to explain complex topics clearly. Experience of working with stakeholders at multiple levels...
To provide deep specialist security architecture expertise in one of the three domains (Enterprise, Security, or Operational Technology), contributing to the development, assurance, and implementation of the organisation’s Security Architectural Framework. Senior Architects lead the design of secure systems and platforms, working collaboratively across multi-disciplinary teams to embed secure-by-design principles and ensure alignment to security strategies and standards. These roles are pivotal in translating security policy into technical design. Job Context & Challenges: The Security Architecture function is a newly established team, formed to strengthen our approach to cyber resilience across a complex, regulated, and high-stakes nuclear environment. The team operates at the intersection of legacy and emerging technologies, balancing technical rigour, regulatory compliance, and delivery pace in equal measure. Security Architects must navigate a constantly evolving threat landscape, embedding resilience into design thinking while making pragmatic trade-offs under delivery and operational constraints. They play a critical role in enabling secure outcomes through deep technical expertise, cross function collaboration, and maintaining domain ownership across enterprise, security, and operational technology areas. This team ensures that security is not only an overlay, but a foundational design principle—integrating best practice, informed by current risks, and aligned to regulatory expectations, including the Cyber Assessment Framework (CAF), particularly Objective B.
Act as the domain lead architect within their area (Enterprise, Security, or OT), accountable for design integrity and secure-by-design practices. Translate business and risk requirements into secure architectural designs across IT and OT systems. Develop security architecture artefacts (e.g. threat models, design patterns, blueprints) in alignment with strategic frameworks and regulatory expectations. Support and guide projects through architecture governance and risk assessment. Provide technical leadership to less experienced architects and engineers, supporting career development and capability uplift. Collaborate across architecture, cyber, and delivery functions to ensure architectural alignment and risk mitigation. Perform security assurance activities including design reviews and architecture assessments for new and evolving solutions. Influence key design and investment decisions by providing expert-level risk insight and solution options to stakeholders. Contribute to the evolution of the Security Architecture Framework, providing insight into domain-specific trends, vulnerabilities, and technologies. Maintain current knowledge of cyber threats and security technologies within the relevant domain. Authorities & Dimensions: Direct line management responsibilities at Level I and both levels I&II expected to coach and guide less experienced team members. Expected to act as domain SME in technical design and governance forums. Operates with significant autonomy on security architecture matters within their domain. Represents the architecture team in strategic projects and stakeholder engagements. Expected to contribute to the development of policy and standards relevant to their domain. Proven track record in security architecture or secure systems engineering within complex...
Safety Cases form the backbone of nuclear safety at Sellafield, helping develop safe solutions for projects and maintain safe conditions on our facilities. The Safety Case is not only a fundamental requirement of our licence to operate, but essential in our understanding of hazards and safety controls. Safety Case professionals work on projects and facilities site-wide and through the full facility lifecycle from design, through operations, to decommissioning and demolition. They are responsible for not only understanding and analysing the nuclear hazards and risks that could occur but identifying how safety can be managed and ensuring robust controls are implemented in practice. Our Profession Mission: To deliver Sellafield Ltd legal obligations in achieving the mission of delivering a clean and safe environment for future generations, through the development and management of nuclear safety cases. Our Profession Vision: We are One Team with an enterprise-wide focus, with the right people, skills and tools to deliver the SL mission. Our structure provides everyone with clarity on their contribution and we operate in an environment where individuals and teams can thrive. The Safety Case Manager is responsible for the management of Safety Cases on behalf of the Safety Case Owner. This role includes accountability for implementation, maintenance and review of these safety cases, in accordance with relevant legislation, good practice and business needs. The role holder will be required to provide high quality safety case advice to all stakeholders and ensure that the safety case is managed efficiently and effectively whilst utilising the Safety Case profession behaviours and values.
Typical tasks undertaken by Safety Case Managers include, but not limited to: Management of singular or multiple nuclear safety cases, including implementation, review, and ongoing maintenance of the safety case to ensure its currency and validity. Develop, implement, and maintain a clear strategy for the ongoing management of the safety case. Provide high quality safety case advice to all stakeholders. Identify and drive improvement initiatives on safety case understanding and implementation in the workplace. Sponsor relevant nuclear safety case documentation through appropriate governance routes, in line with project and programmatic expectations. Proactively engage with both the Safety Case Owner and Head of Profession for Safety Cases to ensure effective safety case management. Support all pillars of the safety cases profession, including Capability and Process and Methods activities as required. Significant evidence of understanding and application of the Nuclear Safety Case process. Experience of a leadership role. Experience of delivering work within in a technical/complex industrial environment. Experience of working in a highly regulated environment. Experience of delivering outcomes through others (and developing others). Experience of delivering to challenging timescales. Experience of building relationships with a variety of different stakeholders. Strong communication skills and a variety of communicating styles, able to adapt style to different stakeholders. Understanding of fault identification techniques and risk assessment. A variety of influencing strategies. Resilience. Embraces and leads change. Completion of the Safety Case Workbook. ...
1. Role Purpose To provide specialist Engineering Support services to Engineering & Maintenance (E&M) through the use of appropriate technology and systems. Using Continuous Improvement methodology to drive the business forward and enable more informed data driven decision making. 2. Deliverables Promote and support overall nuclear safety (along with all other areas of safety – conventional, industrial, radiological, environmental) by maintaining a safe operating envelope through ensuring all work activities are to site standards, policies, processes, and procedures. Deliver and undertake key engineering support roles to meet the facility, value stream or enterprise goals and commitments. Contribute to the continuous improvement programme and governance and control framework to ensure safe delivery of engineering activities against defined standards, company objectives and key performance indicators. Support independent assurance activities with ONR, EA, LRQA, WANO, internal and external regulators/customers. Support and may act as subject matter expert for engineering / compliance standards, Plant administration activities through the generation and control of plant indicators, visual management, Instruction ownership and review to ensure that a high standard of work is delivered. Drive standards during delivery of activities, ensure incorrect delivery is resolved. Meet customer, process owner, and business expectations, maintaining strong working relationships across all levels of the business. Analyse, interrogate, compile, present and process information from required systems to identify root causes and Key Performance Indicators, share learning, inform decision making or outcomes across the business. In addition to the above role holders are expected to fulfil other duties and tasks that are commensurate with their grade assigned to them by management to ensure efficient engineering & maintenance delivery and the success of the team/organisation.
Some experience in an Engineering and Maintenance role ideally previous experience in an Engineering support B4C would be desirable. Knowledge of safety case structure or processes associated with role. Examples of resilience and interpersonal skills to be able to interact with all levels of the organisation (both internal and external to Sellafield) Demonstrable experience of analytical skills with knowledge of problem-solving tools. Demonstrable evidence of being able to advise and influence at a senior leadership level. Demonstrable experience of delivering change. Demonstrates accuracy, quality, and attention to detail in their work. Experience of coaching individuals on processes Experience in the schedule change process and how Plant Maintenance Schedule data is structured in the CMMS. Good understanding of company policies and procedures, SLMS 1.06 Plant Engineering, Asset Management and Equipment Reliability and 1.08 Maintenance and Task Delivery. Detail knowledge of Engineering Information Systems (M3, Qlikview). Knowledge and experience of configuration management processes, applying processes and taking corrective action as required. Open VN Number of Vacancies: 1 Contact/s: Debbie Eilbeck The interviews for this vacancy are expected to be w/c 17th November 2025 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...
The Digital Engineering Capability (DEC) is a department within Sellafield’s Engineering Directorate, tasked with overseeing the development and implementation of modern digital tools and techniques to support Sellafield’s projects/assets during the full lifecycle phases. The Development Lead role exists to support the Head of the Digital Engineering Capability in setting and implementing a cohesive software application strategy, and in underpinning that strategy with appropriate policies, procedures, and continuous improvement activities. The role holder will report directly to the Head of the DEC and will in turn manage direct reports that act as a Subject Matter Experts (SME’s) for digital engineering applications. This involves providing daily support to Application System Owners and Key Users in the implementation, configuration, and use of Computer Aided Engineering (CAE) applications, providing support in the resolution of helpdesk incidents related to CAE applications, and for proactive digital tools lifecycle management from deployment through to retirement. It is expected that a small proportion of the role will involve the direct support of Sellafield projects with the specification, deployment, and management of the DEC model for digital project delivery and implementation of the strategic vision and mission of the Capability. The role requires wide-ranging interactions with stakeholders across project delivery, construction, and operations business units, as well as the ability the clearly communicate complex concepts and topics to a range of technical and non-technical groups. Key challenges include managing legacy systems alongside modern platforms, ensuring minimal disruption during upgrades or transitions, and maintaining robust documentation and compliance. The role demands a high level of technical expertise, problem solving capability, and a proactive approach to continuous improvement in a fast-paced, service-driven environment.
Oversee the creation and implementation of the software application pipelines for Sellafield’s CAE product suites, ensuring that their use-case, support arrangements and future states are well-defined and communicated to the business and its suppliers. Support the Head of DEC in managing the continuous development of the Sellafield Digital Engineering integrated application system map – the template for how all SL’s Digital Engineering software applications work with each other to support project delivery. Collaborating with cross-functional teams to deliver and maintain robust engineering Design software tools solutions that align with Sellafield's strategic objectives and regulatory requirements, through participation and contribution to relevant Application, Delivery and Domain Governance. Represent the DEC at events and conferences as required. Also, regularly interfaces with relevant technical / engineering networks to support the continuous improvement of processes and practices, leveraging the latest technologies and methodologies to enhance operational efficiency and effectiveness. Work with the DEC Assurance Lead to capture, co-ordinate and communicate LFE coming in from the various system owners and DEC engagements. To work with the relevant Vendors, ISO Applications, Architecture and Service Delivery Leads to co-ordinate the submission of DEC requests, new demands and associated ISO activities that enable compliant and cost-effective solutions within allocated portfolio. Maintaining comprehensive documentation of applicable processes, and procedures to support knowledge sharing and continuity of operations. Overseeing the day-to-day operations of related Information & Communications Technology (ICT) systems, specialist support/guidance across the Sellafield business and support teams, to ensure high...
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