The Head of SIXEP leads, directs and develops a complex sub-portfolio which may consist of a combination of operations, programme, projects and decommissioning activities to ensure safe and secure delivery to meet strategic performance outcomes, targets and realise benefits while reducing waste and maximising value for our stakeholders.
The Head of SIXEP holds full accountability for the overall SIXEP programme and is formally appointed as its Senior Responsible Owner (SRO). This strategically significant role centres on complex programme leadership, business case development and the integration of multiple major capital projects within a £4–9 billion new capability programme. These include potential GMPP projects such as SIXEP Continuity, SIXEP Retrievals, and the SIXEP Waste Treatment Project, supported by a wider suite of enabling activities that collectively secure the site’s long‑term effluent treatment capability. While the SRO does not directly deliver these projects, the role provides strategic alignment, governance, assurance and sponsorship to ensure they collectively achieve the required programme outcomes and future operational capacity. In parallel with this change portfolio, the postholder manages an annual programme budget of approximately £30 million. This demands rigorous prioritisation, robust financial governance and effective performance management to maintain safe, efficient and value‑driven delivery. The Head of SIXEP also leads a substantial organisational footprint, with accountability for up to 100 direct staff and a similar number indirectly through contractors and partnered delivery models. The role requires high‑quality engagement with executive, board‑level and government stakeholders, representing the programme externally, shaping strategic decisions and securing sustained long‑term support. Alongside these programme responsibilities, the postholder holds full accountability for the safe, reliable and compliant operation of the existing SIXEP plant, ensuring ongoing operational performance while balancing day‑to‑day plant demands with the delivery of transformational future capability. Manage all activities within the business area to ensure agreed performance targets are...
The Head of Effluents leads, directs and develops a complex sub-portfolio which may consist of a combination of operations, programme, projects and decommissioning activities to ensure safe and secure delivery to meet strategic performance outcomes, targets and realise benefits while reducing waste and maximising value for our stakeholders.
The Head of Effluents is accountable for leading one of Sellafield’s most complex and safety‑critical operational portfolios, overseeing the highly challenging HAL and LAEMG facilities. These represent some of the most radiologically significant operations on the site, requiring exceptional judgement, resilience and an unwavering commitment to safety. The role carries responsibility for a substantial organisational footprint comprising approximately 520 direct employees and around 400 indirect personnel, operating a large and intricate estate of 15 major nuclear facilities and more than 70 supporting buildings. The postholder manages an annual operating and improvement portfolio of around £120 million, requiring strong commercial governance, prioritisation and performance delivery. Operationally, this is a 24/7, high‑pressure environment that demands coordinated and collaborative working across multiple internal groups to maintain safe, compliant and reliable plant performance while navigating highly complex inventory and waste‑management challenges. Strategically, the Head of Effluents provides leadership for defining and delivering the long‑term end‑state requirements for these facilities and plays a central role in maintaining international and government‑level relationships. This includes oversight of obligations linked to the repatriation of overseas waste for key external customers, including Japan, Italy and Germany. Balancing immediate operational risk with long‑term strategic transformation, this role is critical to the safe stewardship of some of Sellafield’s most important assets. Manage all activities within the business area to ensure agreed performance targets are met and nuclear safety remains an overriding priority. Responsible for the overall leadership and safe operation of facilities, programmes and projects to realise agreed programme and...
We are currently recruiting for 2 Executive Project Managers for the roles detailed below: Head of Projects (Non PPP): The Executive Project Manager provides leadership to the Heads of Projects/ Senior Project Managers and wider team to facilitate safe delivery of a portfolio of projects in the approved project baseline. The Executive Project Manager reports directly to a Value Stream Lead/ Director and implements appropriate governance arrangements to ensure all business and facility risks within their portfolio are mitigated. Principal Accountabilities: To ensure that the Project Delivery Fundamentals are understood, embedded and compiled with by their delivery teams. Develop Leadership standards across Develop and set the environment so project succeeds, eg. developing commercial strategies. Develop and deliver improvement plans for their portfolio taking into account Assurance outputs, in conjunction with the PM Function, to address identified shortfalls and drive broad business performance improvements and Develop effective communication between the project teams and engaging and influencing Establishing and managing the portfolio baselines (cost, schedule and risk) and Programme contingency with the Programme Manager. Linking and logically sequencing inter-related projects if Monitoring overall portfolio performance (in terms of cost, schedule, safety and quality) and assuring corrective actions are implemented, if required, via the appropriate PM. For developing accurate and timely portfolio reports which highlight safety, quality, cost and schedule performance and issues. Develop and conduct visual management across In agreement with the PMs under their control, ensure a project staffing plan is prepared in line with the agreed directorate business needs/execution Serving as the focal point for both internal and external communication on the portfolio. Implementing improvements and enhance performance of projects
Head of Asset Lifecycle: To arrest the degradation of assets on the Sellafield Site through the delivery of a safe, efficient and effective asset delivery cycle. This includes the delivery of a highly complex/high risk portfolio of Asset Care projects and tasks utilising an extended enterprise approach, accountable to the Chief Engineer. Principal Accountabilities Develop a comprehensive forward demand profile for the major assets on the Sellafield Site to under-pin the forward Enterprise plan. Implement appropriate cross organisational governance to ensure that the delivery capability and capacity is prioritised appropriately. Develop an efficient front-end definition capability to reduce the project norms associated with the decision making and sanction up to FEL2 without impacting subsequent phase norms. Implement an integrated Intelligent client and intelligent customer capability across all the partner vehicles to ensure appropriate standardisation; maximise post award value creation. Delivery of up to £300m per annum minor and major projects via the appropriate delivery route following appropriate make:buy consideration; developing and maintaining appropriate supply chain relationships. Deliver smooth transition and mobilisation of new vehicles IDP/PACE/DSP Ensure appropriate oversight and governance of the major project delivery vehicles (ISA/IDP; OSW/PACE; DSA/DSP) delivering the critical success factors identified in the respective business cases. Significantly improve the design and delivery norms of minor and major projects across the portfolio. Liaise with the required professions to maintain project skills and capability. Certified at SPM2 through PM Capability (Internal to profession) Demonstrates behaviours against NOA...
The overall purpose of the Human Factors (HF) Lead in Safety Cases is to provide Senior Leadership of Sellafield Limited’s (SL) HF Specialism in the provision of expert advice to enable Nuclear Safety Case development and management, non-nuclear Safety, Security, and other key areas where the human element is important.
1. Provide strategic direction and leadership to the Human Factors discipline to ensure adequate Human Factors support and input to all stakeholders and interfacing professions across the business. 2. To lead on improvement and innovation opportunities in Human Factors matters (including with respect to Human Factors resourcing and processes) to ensure the Human Factors service to the enterprise continues to enable the mission. 3. To lead on internal and external stakeholder engagement (with respect to strategic Human Factors matters), secures stakeholder support and build confidence to enable to Human Factors discipline to continue to enable the mission. 4. Maintains a broad awareness of business and profession drivers in order to ensure Human Factors activities align with current business needs, context and strategic drivers. 5. To lead on the strategy for the maintenance of SL technical expert capability for the Human Factors function to meet the expectations of the business. 6. To coordinate Human Factors resources to meet the needs of the enterprise. 7. To oversee the Human Factors supply chain capability who are delivering work for Sellafield to ensure efficiency, effectiveness and value for money. 8. To lead on the identification and development of Human Factors Technical methods and enabling applications to support the effective integration of Human Factors technical arrangements with other interfacing company arrangements. 9. To lead on Human Factors assurance and governance arrangements to ensure Human Factors activities are delivered to meet the needs of the business (e.g. to quality, cost and schedule). 10. To be a...
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...
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