Job Description

Deliver specialist quantitative risk analysis and modelling services to support informed, risk-based decision-making across Sellafield’s complex programmes and projects. This job ensures the effective implementation of the Sellafield Risk Management Framework by providing integrated cost and schedule risk analysis, enabling the organisation to achieve its objectives safely, efficiently, and with confidence. They also build organisational capability through training and support.

Job Context & Challenges:
1. Operating Environment: The job operates within one of the most complex and highly regulated industrial environments in the UK. Sellafield’s projects are often industry firsts, requiring innovative approaches to risk management and modelling. The work is safety-critical, with significant implications for cost, schedule, and regulatory compliance.
2. Technical Complexity: The job demands deep technical expertise in quantitative risk analysis and modelling software (Safran Risk, Primavera Risk Analysis) and their integration with Primavera P6. It also requires a strong understanding of project controls disciplines, planning, estimating, and cost control, to ensure risk models accurately reflect project realities.
3. Cross-Disciplinary Knowledge: Successful delivery requires collaboration across multiple functions, including engineering, project management, commercial, and safety. The ability to interpret and challenge inputs from these disciplines is essential.
4. Peer Review Responsibility: The job includes peer reviewing risk models for programmes and major projects, which requires significant judgment, technical depth, and the ability to assure compliance with governance standards.
5. Deadlines and working through ambiguity: Challenges include tight deadlines, evolving project scopes, and the need to provide robust risk analysis under conditions of uncertainty. The job holder must balance technical accuracy with clarity and usability of outputs for decision-makers.

Principal Accountabilities

1. Deliver integrated cost and schedule quantitative risk analysis models using specialist tools (Safran Risk, Primavera Risk Analysis) to provide accurate risk forecasts that inform decision-making across Programmes and Major Projects.
2. Peer Review and assure risk models of the highest complexity for Programmes and Major Projects to confirm compliance with governance standards, validate assumptions, and ensure outputs are robust and credible.
3. Validate and assure input data quality for risk models, including cost, schedule, and logic integrity, to guarantee fitness for purpose.
4. Produce clear, actionable risk analysis outputs and reports that enable stakeholders to understand risk exposure and make informed strategic and operational decisions.
5. Act as a subject matter expert for quantitative risk analysis and modelling software, providing technical guidance on Safran Risk, Primavera Risk Analysis, and their integration with Primavera P6.
6. Coach, mentor, and train colleagues and stakeholders in risk modelling principles, tools, and best practices to build capability across the organisation.
7. Provide expert challenge and assurance on risk modelling activities across projects and programmes to maintain integrity and compliance with governance requirements.
8. Lead and contribute to community of practice forums to share knowledge, promote continuous improvement, and embed best practices in quantitative risk analysis.
9. Line manage up to 3 employees (TRM only).

Authorities & Dimensions

Authorities:
• Authority to peer review and sign off integrated cost and schedule risk analysis models for the highest complexity and value projects/programmes, ensuring compliance with governance and quality standards.
• Authority to recommend improvements to risk modelling processes and tools within the Sellafield Risk Management Framework.
• Authority to provide expert challenge and advice to project teams, senior managers, and stakeholders on quantitative risk analysis outputs and implications.
• Authority to coach, mentor, and train colleagues in risk modelling principles and software use.
• Authority to represent Sellafield Ltd in NDA-wide forums and communities of practice, influencing risk management standards and practices across the estate.

Dimensions:
• Financial Influence: Supports decision-making on projects/programmes with values typically ranging from £20M to £1B+, by providing risk-adjusted cost and schedule forecasts.
• Scope of Impact: Provides assurance and modelling expertise for major, complex, and safety-critical projects with multiple interdependencies across the Sellafield site.
• Stakeholder Reach: Engages with senior managers, project controls managers, Senior Estimators, Senior Planners, and external stakeholders across Sellafield and the wider NDA estate.
• Technical Complexity: Responsible for modelling and peer review using Safran Risk, Primavera Risk Analysis, and Primavera P6, ensuring integration and data integrity.
• Capability Development: Delivers training and mentoring to risk professionals and project teams, influencing risk management maturity across the organisation.
• Primarily specialist and advisory.

Essential Skills

• Significant expertise in quantitative risk analysis (QRA), including integrated cost and schedule risk modelling for large, complex projects.
• In-depth technical knowledge of risk modelling software, specifically Safran Risk and Primavera Risk Analysis (Pertmaster), and their integration with Primavera P6.
• Strong understanding of project controls disciplines (planning, estimating, cost control) and how they interface with risk modelling.
• Proven experience in peer reviewing and assuring risk models for major projects, ensuring compliance with governance and quality standards.
• Ability to interpret and present complex risk outputs to inform decision-making at senior levels.
• Facilitation skills for risk workshops and stakeholder engagement, from technical teams to senior management.
• Coaching, mentoring, and training capability to develop risk modelling skills across the organisation.
• Excellent analytical and problem-solving skills, with attention to detail and ability to challenge assumptions constructively.
• Strong communication and influencing skills, able to articulate technical concepts clearly to non-specialists.
• Experience working in safety-critical, highly regulated environments, ideally within nuclear, infrastructure, or similar sectors.

Desirable Skills

• Membership of a relevant professional body (e.g., IRM, APM, IOSH).
• Degree (minimum 2:2) or equivalent in a relevant discipline (e.g., engineering, project management, risk management).
• Experience supporting cross-organisational initiatives, such as NDA estate-wide risk modelling or community of practice forums.
• Knowledge of emerging risk management tools and techniques, and ability to implement improvements.
• Experience in change management and embedding risk-based decision-making culture.
• Background in major project delivery, with understanding of interdependencies and interfaces across programmes.
• Experience in coaching and capability development within a professional framework.

Additional Information

• Open VN
• Number of Vacancies: 1
• Contact/s: Michael Hawley

The interviews for this vacancy are expected to take place from 15th July 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 (9-4) GCSE in English Language, 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. The competencies will be issued once invited to interview.

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 further information will be issued once invited to interview.

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.

The closing date for this vacancy is Sunday 28th June 2026.