Senior Modelling Actuary

About the Role

Reporting to the Group Head of Modelling, you will own and deliver Stochastic Pricing and Planning model output for transactions and planning, and create, deploy and integrate new models that drive business value for Enstar. The Modelling function is fundamental to Enstar’s strategic and financial decision‑making. Its outputs directly influence risk appetite, M&A appetite, investment composition, and both regulatory and economic capital requirements. You will work in close partnership with the Head of Modelling to deliver and enhance stochastic modelling across the range of Enstar group’s strategic activity including transaction pricing, financial planning, liquidity management and other strategic initiatives. For existing models, you will design and execute a structured development programme that enhances functionality, efficiency, integration, and safe use. You will ensure models are technically robust, operationally embedded, and aligned with evolving business needs.

You will also lead the identification, development, and deployment of new models that deliver measurable business value. This includes building compelling cases for adoption, securing stakeholder buy‑in, and ensuring scalable and persistent implementation through prototyping, productionising, training, and integration with existing modelling frameworks. You will be responsible for designing and producing high‑quality outputs and communicating insights effectively to a wide range of stakeholders, including senior management, regulators, and external partners. Your work will support strategic decisions and foster a culture of innovation and continuous improvement in modelling practices.

Enstar is a ‘hands‑on’ organisation and the role will be approximately split evenly between individual technical work and leading others. This role will appeal to an individual with large amounts of initiative, comfortable working in a fast‑changing environment with a passion for making models commercially valuable. Further, the function prides itself in deploying a fungible Target Operating Model where all team members are encouraged to work across pillars, subject to priorities.

Responsibilities

• Champion governance and risk management, ensuring all models meet internal standards and external regulatory/rating agency expectations.
• Collaborate cross‑functionally with teams including Risk, Finance, FP&A, Investments, and M&A to ensure models are aligned with enterprise‑wide priorities.
• Foster an innovation culture, encouraging experimentation, knowledge sharing, and the adoption of emerging modelling techniques.
• Track and report model performance, business impact, and usage metrics to inform continuous improvement and strategic alignment.
• Drive model use across the business, working collaboratively with multi‑disciplinary teams to apply models in delivering transactions and enabling business transformation.
• Lead and develop talent, supporting the hiring, management, and professional growth of junior team members to build a high‑performing modelling team.
• Deliver Stochastic Pricing and Planning outputs. The Stochastic Pricing and Planning models are both written in Python.
• Deliver stochastic pricing and risk‑reward analysis for all of Enstar’s transactions using existing models and developing new models to enable better understanding of the market leading transaction frameworks that Enstar develops. This will require working to tight deadlines and may require working non‑standard hours.
• Produce stochastic business plan analysis by combining Enstar’s deterministic 5‑year business plan with the internal model’s view of volatility. This enables advanced likelihood‑driven decision making across financial, regulatory and rating agency criteria.
• Distill complex model output into strong narratives for senior management to take action.
• Train and delegate to junior members of the team for model delivery.
• Enhance existing Modelling and deliver new modelling solutions: existing models – Stochastic Pricing and Stochastic Planning models; pipeline models – Liquidity and bespoke asset models.
• Lead the development roadmap for existing models to improve functionality, efficiency, and integration both across business units and existing models such as the Igloo‑based capital model.
• Ensure safe and effective model use, embedding controls and documentation that support regulatory compliance and internal governance.
• Collaborate with stakeholders to identify enhancements that align with evolving business needs and strategic priorities.
• Promote model transparency and accessibility, enabling wider use and understanding across non‑technical teams.
• Provide ad‑hoc model uses as requested by the business and seek opportunities for new model use.
• Identify opportunities for new models that deliver measurable business value, aligned with Enstar’s strategic goal.
• Prototype and productionise new models, ensuring scalability, robustness, and integration with existing modelling infrastructure.
• Engage and influence stakeholders, building support for new modelling initiatives through clear communication of benefits and risk.
• Embed new models into business processes, ensuring they are used consistently and effectively to support transactions and transformation programmes.
• Support continued integration of these models with the group capital model.
• Lead the design and improvement of the management information of the Modelling team.
• Delegate and coach team members, empowering ownership and innovation through support and guidance.
• Automate and simplify repeatable modelling processes, favouring simple and efficient solutions.

Qualifications

• College/university degree or equivalent.
• Attainment of the FIA/FCAS designation or equivalent preferred; 5+ years of modelling experience, which can be from a consultancy or other arrangements; general insurance capital modelling experience preferred.
• Strong analytical skills and detail orientation.
• Flexibility to adapt to changing work priorities and assignments.
• Ability to work effectively in a team environment and to establish constructive working relationships with key stakeholders and colleagues across the group.
• Ability to present and communicate financial data concisely and clearly.
• Strong computer skills with an emphasis on Microsoft Excel, Python, SQL and Igloo (or Tyche); Python is essential.
• Sound understanding of regulatory and rating agency capital requirements; knowledge of other global capital regimes including Bermudan BSCR and other global regimes where Enstar does business is helpful.
• Comprehensive understanding of insurance & finance terminology.
• Proactive, inquisitive, conscientious and acts with integrity.
• Ability to meet strict deadlines.
• Excellent written and verbal communication skills.
• Problem‑solving skills with the ability to start an analysis at a granular level and develop the big picture.
• Proactive in developing and maintaining positive working relationships with cross‑functional team members.
• Ability to influence senior stakeholders.

Benefits & Development

• Professional qualifications and study support: We support employees who wish to take professional qualifications aligned to their role and career development.
• Training, conferences & seminars: As a global organisation, we work with many professional bodies to provide access to training programmes, conferences, seminars and continuing professional development (CPD) opportunities.
• Digital learning hub: Our digital learning hub, LinkedIn Learning, offers a wide range of self‑serve resources, including courses, videos, eBooks and audiobooks, to help employees build new skills and deepen their knowledge.
• Physical, mental and financial wellbeing initiatives for our employees.

EEO Statement

Our annual Inclusivity Index puts Enstar ahead of the industry in terms of promoting an inclusive and welcoming working environment. We’re an equal opportunity employer and believe that our inclusive environment creates an authentic working culture. We don’t discriminate on the basis of age, physical or mental disability, gender reassignment, marriage and civil partnership, pregnancy and carer status, race (including colour, nationality and ethnic or national origin), religion or belief, sex and sexual orientation. Enstar is committed to providing an accessible recruitment experience for all those interested in working with us. Please let your Enstar Recruitment Partner know if you require any reasonable accommodation during the application process due to a disability to enable you to fully participate in our recruitment process.

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