Candidates will be responsible for leading the definition, assurance and delivery of sustainable Nuclear Ventilation & Building Services design solutions that meet the functional and business requirements across all areas within SL. The role requires individuals that are comfortable working within a multi-disciplined team environment and are able to achieve through collaboration. Being able to recognise stakeholders and actively engaging with them is also key to success. In supporting the above, candidates will be expected to both lead and develop other staff within this discipline. Additionally, there will also be opportunities to contribute and use your experience in developing and improving sector specific standards and guidance. Mentoring and development will be given to candidates to help support their progress in the business.
The candidate will be accountable for the design of Nuclear Ventilation & Building Services systems. This would also include specification and selection of plant & equipment. Support through manufacture, installation, commissioning, and operational phases (as well as design). Technical advice when needed across the business and support to assurance activities. The candidate will at times be accountable for supervising others delivering work in this area and the development of specialist staff. The candidates would ideally be degree qualified in Building Services, Architectural or Environmental Engineering. They will either be Chartered Engineers with or working towards Chartered status. Applicants with Mechanical Engineering or other STEM qualifications and experience in the Building Services industry are welcome, as are candidates who have additional qualifications (e.g. specialist Building Services MSc) and experience in the Building Services industry. Applicants without a degree but with Technical Qualifications will be considered. Able to demonstrate delivery experience in design & specification of HVAC & Building Services systems, plant and equipment. Through gaining this experience, your career will have progressed to a point where you have also gained a broad understanding of the needs of other engineering and construction professionals and have the necessary technical & personal skills to be effective in an integrated team. In addition to problem solving capabilities in design, candidates would be familiar with creatively solving problems associated with manufacture, installation and operation of these systems. They will be comfortable with giving authoritative technical advice in this area, together with any necessary engineering justification. Your...
The Delivery Portfolio Director role is accountable for the safety, security, and the environmental performance of their assigned Portfolio. They lead the implementation of the Sellafield Strategy within a defined Portfolio of the business, delivering Portfolio outcomes and benefits through operations, programmes, projects and asset management, working within financial parameters and driving efficiencies, whilst ensuring regulatory compliance and long-term sustainability. The role operates collaboratively across the enterprise to challenge the status quo and improve Portfolio effectiveness and efficiency. In addition, the role includes leading tactical decision making and prioritisation to optimise the outcomes and benefits on behalf of the whole business as a ‘Duty Director’ as required.
The Delivery Portfolio Director has the authority to: Spend (cash) within appropriate delegated powers of financial authority and budget allocation parameters. Define the resources required within the Portfolio organisation to achieve the desired activities. Work to the staffing level parameters agreed with the Executive and business. To lead and direct all resources within their Portfolio to deliver in line with the expectations and standards. Ensure the effective translation of SL Enterprise strategic, technical, engineering and safety case authorities into Portfolio level authority arrangements, with clear accountabilities for setting and delivering to the required standards. They have the authority to challenge and question expectations and standards in line with delivering on a balanced proposition of risk, schedule and cost to establish consensus with key stakeholders. Define the services required from SL Enterprise functions, working collaboratively on priorities and the efficient allocation of resources (people, funding and assets). Implementing the standards and performance requirements as defined by the SL Enterprise Functions. Portfolio Dimensions: £ 270 million Champion health, safety, security, environmental and sustainability excellence. Ensure compliance with all relevant legislation, regulatory frameworks, standards, policies and internal governance. Lead the portfolio delivery to ensure achievement of safety, environmental, quality, and performance targets. Develop and implement strategic plans and annual business objectives to align with corporate goals and regulatory requirements. Define programme and project requirements to provide new capabilities in line with the Enterprise Strategy, acting as Sponsor, Single Point Accountability...
The Low Active Effluent Management Group (LAEMG) Strategy and Technical Team within Spent Fuel and Effluent Management (SF&EM) are offering an exciting opportunity to move into a new role at your current grade. Expressions of interest are welcomed from individuals within the technical profession in a permanent B4A role with relevant experience. The LAEMG Plant Facing Technical Team provide technical support to a wide variety of facilities including the Enhanced Actinide Removal Plant (EARP), Solvent Treatment Plant (STP), Segregated Effluent Treatment Plant (SETP), Salt Evaporator and Medium Active Storage (SEMAS) and Waste Packaging and Encapsulation Plant (WPEP). The support provided to the facilities is broad with opportunities to get involved in underpinning changes to operations, conducting technical investigations and assessing plant performance. It is an interesting time to join LAEMG Technical with work underway to redefine the operational philosophy of the facilities in the new era of post reprocessing. The team provide technical underpinning to the continued operation of the LAEMG facilities. Opportunities also exist to provide technical support to the delivery of a range of studies as well as providing underpinning assessments for Post Operational Clean Out (POCO) and Initial Decommissioning (ID) of the LAEMG facilities. Successful applicants will have the opportunity to solve novel and challenging technical issues within the SF&EM directorate and be at the forefront of defining and implementing new approaches to effluent management. This role not only provides technical support for LAEMG but will also provide the candidate with a broad understanding of the Sellafield site through engagement with donor facilities. A key requirement of the role is collaboration not only with Operations but many other disciplines including Environmental, Engineering and Safety Case. The role is primarily based in Albion Square but with expected regular travel to Sellafield Site and other West Cumbria offices.
Provide technical support to ensure the safe and optimised/effective operation of the LAEMG facilities. Gathering and interpreting plant data. Support investigation and resolution of emergent issues within the LAEMG facilities. Support the preparation for and implementation of POCO and ID of the LAEMG facilities. Provide technical support to LAEMG donor facilities in the production of relevant technical and best available technique (BAT) assessments to ensure process compatibility. Production and checking of technical documentation including reports, justifications and calculations. Effective stakeholder communication and management. Support identification and delivery of plant and process improvements. Developing plant trials and supporting implementation of changes on plant. Demonstrated delivery of work autonomously or leading on packages of technical work. Relevant STEM degree level qualification or equivalent years’ experience in a technical role. Effective communication skills and experience engaging with a range of stakeholders. Experience of data collection, analysis, interpretation and presentation of information. Experience of technical paper writing for both technical and non-technical audiences and approval through relevant governance. SC clearance or the ability to achieve it. Knowledge of LAEMG mission. Knowledge of effluent management processes. Experience working within an operations environment. Experience working with external stakeholders. Member of relevant professional body. Please note you need to be B4A and currently in the Technical Profession to apply for this role. Open VN Number of Vacancies: 1 Contact/s: Kimberley Murphy The informal discussions...
SNM Technical Reporting to Hayley Green. SNM technical are seeking innovative and enthused chemists who want to be at the forefront of complex and technical problem solving at Sellafield. It is a fascinating time to join SNM Technical, with preparatory work underway to develop and progress new two new facilities: SRP, designed to retreat and repack our inventory, and the recently announced Plutonium Immobilisation Plant, which will take the next 30 years to research, mature, and build while continuing to store our SNM inventory (PuO2 and Mixed oxide residues) safely and securely. This offers unique scientific challenges for our technical teams working within SNM. The roles will provide technical underpinning and justification to SNM plants and projects (including the new SPRS Retreatment Plant (SRP) as we head towards active commissioning), delivering data analysis and technical assessments. They offer opportunity to solve novel and challenging technical issues within the SNM directorate by directing the scope of SNM’s Pu Science and Package Surveillance programme in the supply chain. Successful applicants will enable the progression of these projects and enable existing SNM operations through their delivery of technical support calling on their chemical and scientific skills. This will require successful candidates to provide on-plant support in most cases. As a highly collaborative role experience and confident communication with internal and external stakeholders including Major Projects, UKNNL, Universities and international laboratories is essential. Together we work to further mature our understanding of special nuclear materials and the environments that they are stored in. This role not only provides technical support for existing SNM operations but will also provide the candidate with the knowledge and skills necessary to face future challenges and help support Sellafield as a world leader in the long-term storage of SNM. These are primarily office-based roles, working off-site, that may also require plant and supply chain/university visits to support the delivery of the SNM mission.
Development of scientific scope to support understanding of Pu storage and SRP underpinning and manage the delivery of that through the supply chain. Production and checking of technical documents including reports, technical justifications and calculations. Ensuring transition of that knowledge into the SNM directorate maximising the benefit to the business. This includes confirming LFE and best practises are shared with the SRP programme and embedded into future operations. Effective stakeholder communication and management Honours degree in chemistry. An interest in investigating the fundamental underpinning the safe storage and management of PuO2. Experience of justifying own ideas/theories and taking them forward. Relevant experience working collaboratively with technical teams. Knowledge of SNM mission and challenges. DV clearance, or the ability to achieve. Experience working within an operations environment. Experience working with external stakeholders and regulators. Ideally holds a chemistry PhD and holds or working towards chartered status with the Royal Society of Chemistry. Please note as this is a EOI you must be a Band 4A to apply for this role. Open VN Number of Vacancies: 2 Contact/s: Hayley Green The interviews for this vacancy are expected to take place week commencing 2nd March 2026. 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...
The Head of Operations is the senior leader responsible for overall safety, security, safe operations, decommissioning and continuous improvement of a facility / facilities. All senior leaders within their facility / facilities are accountable to this position for the performance and improvement of their respected organisation and teams.
The Head of Operations has the authority to: To suspend any activity which is deemed to be unsafe and / or in violation of approved procedures, regulatory or legal requirements. To approve the restart of plant operations following any significant, unplanned outage. To discharge the accountability of Duty holder. Required to carry out nominated/appointed roles. Exact roles may vary by facility. Dimensions of the role: The Head of Operations requires substantial knowledge of Operations, typically gained by significant experience working across operational delivery roles. Knowledge of Project, construction and design processes, along with commercial arrangements for major frameworks. Must have a depth of experience to manage significant conventional safety hazards and lead frequent interaction with regulatory bodies and stakeholders. The Head of Operations leads operations in the most complex nuclear facilities. Role holders lead all aspects of operational delivery and the management of a significant sized team. Doing this requires planning typically on an annual time horizon and broader encompassing Decommissioning planning and client integration of decommissioning projects. Leads Operations in the highest complexity nuclear and non-nuclear facilities. The most senior leadership role within a facility responsible for creation of the right working climate/culture across all disciplines. Required to develop/coaches others within the facility management team and lead on with complex interactions internal and external stakeholders such as regulators. Requires end translating site standards into local operating policies and procedures. This involves developing better ways to do things...
We are offering an opportunity in the Internal Communications team at Sellafield Ltd. This is a 12 month maternity cover. The successful candidate will be expected to have a broad understanding of digital communication tools and skills. There will be the opportunity to investigate and develop skills to use the following: SharePoint 2013 and OnLine Viva Connections Viva Engage Govdelivery Digital signage (Clever Touch and Clever Live) Part of the role will be to work with the Internal Communication team to ensure these channels and others are being used effectively.
The successful candidate will be fulfilling the role of communications officer within the department, meaning they will be expected to: Develop contacts within the organisation in order to provide advice and support on internal communication and engagement approaches in line with the Sellafield Ltd Communications and Stakeholder Engagement strategy. Offer colleagues suggestions on the best way to tailor content for publications. Edit copy effectively with an eye for a great headline, flair and accuracy. Bring a new perspective to our internal communications campaigns and offer advice on communications tools which could be used to support them. Identify and commission copy from contributors where appropriate, and offer advice on the best way to present/write that content for different channels. Ensure that corporate branding and editorial standards are upheld. Ensure that all communications activity undertaken is backed up with planned effective measurement and feedback, and that this information is used to develop ongoing communications. Contribute to the Sellafield Ltd Emergency Duty team. This is a fantastic opportunity to work at the highest levels of the organisation and develop communication skills. You will need to feel confident about: Using recognised internal communication standards and techniques. Understanding the impact and influence of communication on workforce engagement. Evaluating our communication and engagement methods. Identifying different audiences and producing effective, tailored content. Creating and writing digital platforms. Working quickly and accurately to tight deadlines. Challenging the status quo and making a...
Mechanical Engineering design covers a range of activities, project stages and delivery mechanisms including: Develop engineering schemes to support the selection of the viable option during Appraise & Select. Define, implement and deliver engineering design work packages that are safe, legally compliant, fit for purpose and meet functional and business requirements to contribute to the successful completion of Engineering Design tasks or projects. Assist the discharging of Intelligent Customer duties to support the production of design deliverables by the supply chain (as appropriate to the delivery model).
The Mechanical Design Engineer will be required to: Deliver work consistent with the requirements of the staged business model, effective risk management principles and in full alignment with the Project, Study or Task. Deliver work compliant with the relevant legislation, appropriate design and engineering standards, policies and practices to ensure that the design meets all functional, safety and environmental requirements. Deliver the work package in terms of cost, schedule, safety and quality and develop accurate and timely reports to ensure the work is documented appropriately and delivered against plan. Communicate effectively with other engineering disciplines, system engineers, Mechanical Capability and other stakeholders during the delivery of engineering solutions. Assess engineering and technical risks, contribute to the development of mitigation plans to ensure the work is delivered in a safe manner against the plan. Promote best practice and the sharing of LFE to the Mechanical Community. Support/lead teams in the delivery of work packages. All graded at 3B Lower, Risley or Sellafield Roles available are as follows: Project Facing Design Office: Lead Design Engineer (2 Off) Engineering Design Capability; Crane Subject Matter Expert (1 Off) Engineering Design Capability; Packages Subject Matter Expert (1 Off) In the application state which of the above Role(s) you are applying for. The skills required will vary depending upon the exact nature and level of seniority of the specific role in question: IMechE accredited degree (Mechanical Engineering preferred) Incorporated Engineer IMechE or Chartered Engineer...
As part of our membership of WANO, Sellafield have a commitment to provide secondees to work within the WANO Paris Centre. The delivery model for WANO is changing from an assessment-based approach to a more supportive and improvement approach, and as such the products and services provided by WANO have an increased focus on enhanced support and effectiveness whilst still undertaking assessment activities to highlight gaps to excellence standards. This is through the Action for Excellence programme, and therefore in order the facilitate this Action for Excellence programme, secondee requirements are also changing. Who: Predominately based at B3 employees. B4A employees may be considered dependent on the roles available within WANO and their current individual performance/potential ratings. When: Secondments will commence 2027 onwards. Roles: Various roles are available at WANO Paris Centre dependent on the individual’s skill set and the requirements of WANO at the time. These include, but are not limited to; WANO Representative, , Senior Area Experts (Operations, Maintenance and Engineering), Member Support Mission Team Leaders, Operating Experience Engineers, Performance/Data Analysts and Area Leads/Functional Leads (see ‘Role Specifics’ below for further information). Disciplines: Organisation & Administration / Engineering / Maintenance / Operations / Operating Experience. As well as Business Leaders and Area Experts. Other disciplines may be considered. Information related to Role Specifics is within the ‘WANO Opportunity 2026 Presentation’ on https://slportal.ssa-intra.net/pub/SC021/00340/Peer%20Reviews/Forms/AllItems.aspx
WANO secondments are for 3 years. The first 2-years are based predominantly in Paris, whereas the final year is based in the UK. Dependent on the role, there will be periods of time spent travelling for Missions, both within and outside of Europe, balanced with periods of time at the WANO Paris Centre office. WANO missions can be hard work but are rewarding. A secondment at WANO provides the opportunity to experience new cultures, different ways of working and both rewarding and challenging personal growth opportunities. Individuals will leave Sellafield at their current grade and return following secondment at the same grade. At the end of the secondment, support will be provided to enable repatriation Compensation and benefits, whilst seconded, will be in-line with the T&C’s for International Assignments (HR-Reward) at the time of secondment, and are subject to a written agreement between SL and the individual. Secondments can offer employees valuable career opportunities and enriching life experiences, with professional and intercultural experiences. They are a key part of people development, employees benefit by gaining international experience, growing personally and professionally. Sellafield Ltd benefits by expanding the knowledge and skills of the employee, exposure to the worldwide application of nuclear safety excellence standards, supplementing the technical expertise of our secondees, and generally promoting a consistently high nuclear safety culture. Employees and potentially their families will naturally have concerns about issues such as relocation, education, taxes and implications on their careers. Sellafield Ltd makes...
Site Management Strategy and Technical are a multi-disciplinary team that primarily support Infrastructure and Analytical Services, but also interact with each of our value streams. The appointed Strategy Team Member will focus on the Utilities and Energy scope within the team’s deliverables, completing strategic studies, business-critical data analysis to inform decision making, and supporting the implementation of sustainability strategies across the business. This role offers opportunity to influence and impact; it is fundamental in developing and implementing the Site Integrated Energy Strategy. The Strategy Team Member will support our mission, taking action to satisfy our Carbon Footprint and Climate Change responsibilities. This is an opportunity to enhance and broaden your skills and knowledge, while working in a varied area of the profession. The appointed individual will collaborate closely with other NDA group members, improving their visibility with the infrastructure leadership team, Environment and Sustainability teams, and external stakeholders.
Strategic Development: Lead and support strategic assessments and studies to develop underpinned strategic positions. Project Support: Assist projects in maintaining strategic alignment and support operations and engineering teams in developing asset care programs. Data Analysis and Management: Manage business-critical data and analysis to provide insights into best-value approaches for mission-enabling functions. Stakeholder Engagement: Engage with stakeholders on the Integrated Energy Strategy and Carbon Management Plan. Share learning and make improvements on Energy and Carbon strategies with the NDA Group-Wide Energy Programme. Work with plant operations and engineering teams, and the Programme teams to develop and implement strategic requirements. Bachelor’s degree in a science or engineering subject (BSc, BEng), or the equivalent relevant experience. Ability to achieve membership of a relevant professional body. Experience of optioneering and studies/strategic assessment work Demonstrable experience authoring technical documents. Strong communication skills and the ability to work with people at various levels of the organisation. Chartered in a relevant discipline. Experience engagement with a wide range of stakeholders. Experience delivering implementation plans based on strategic assessments. Open VN Number of Vacancies: 1 Contact/s: Gary Hewitt The interviews for this vacancy are expected to take place week commencing 23rd February 2026. 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...
To operate as a leader within the Engineering Design community. Being accountable for, the development and maintenance of company wide capability to support the SL Value Streams in the CE&I Security Subject matter specialism. By ensuring the provision of expert advice and guidance, standards and training, design assurance, and delivery of fit for purpose design solutions that meet functional and business requirements. Individuals within this Engineering Design Level will be performing a Principal Design Engineer 1 job within a business area. The appropriate delivery role is Design Capability Leader. For responsibilities, accountabilities and authorities refer to the relevant R2A2 namely ED15.
Experience & Performance: Significant and broad experience working in roles where knowledge of engineering is a key attribute. Significant and broad experience working within a highly regulated and quality assured system in roles where professional engineering judgement is the key attribute. Experience working in a variety of roles within the Engineering Profession. Demonstrable experience of successfully leading and delivering large, fit-for-purpose design engineering solutions to time, cost and quality requirements. Extensive team leadership experience. Significant experience of managing professionally qualified engineers. Significant experience of having personal responsibility for decisions involving substantial resources and their consequences. Considerable experience of leading change and / or improvement programmes amongst engineering teams with demonstrable results. Extensive experience of working collaboratively with the supply chain to deliver successful projects and work packages. Knowledge: Considerable knowledge of specific engineering discipline and its application within nuclear projects. Knowledge of the CE&I Security in Design specialist area Breadth of knowledge across all engineering disciplines. Provides local leadership on nuclear safety and security. Comprehensive knowledge of governing laws, key regulations and standards for the nuclear industry and considerable experience in applying them appropriately on projects. Thorough understanding of the structure of the Engineering Design community and the key interfaces with other areas of the business. Knowledge of the Sellafield Ltd. Management System structure and the hierarchy of standards with a thorough understanding of those standards most relevant to Engineering Design and considerable experience...
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