Senior Quantitative Risk Actuary

The Actuary; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

The Actuary in London is seeking a Senior Quantitative Risk Actuary to provide independent oversight across internal models, reserving, capital and financial risk processes. You will lead end-to-end internal model validation, ensuring methodologies and governance meet regulatory standards, and deliver clear validation reports for committees and senior management.

In addition, you will contribute to ORSA, stress testing, and collaboration with capital modelling, underwriting, finance and risk

Qualifications

• Fully qualified actuaries with post-qualification experience.
• Solvency II or Lloyd's environment preferred.
• Strong expertise in model validation, reserving, and capital modelling.
• Excellent analytical capabilities and ability to translate complex outputs into actionable insights.

Responsibilities

• Lead end-to-end internal model validation activities, ensuring methodologies and governance meet regulatory standards.
• Produce clear validation reporting for committees and senior management.
• Oversee reserving processes, reviewing assumptions and uncertainty and assessing inflation and claims trends.
• Provide independent insight into financial market and credit risk exposures; assess stress and scenario testing for ORSA and business planning.
• Collaborate with capital modelling, underwriting, finance and risk teams to deliver robust quantitative analysis and meaningful challenge to decision-making.

Skills

Internal model validation

Reserving

Capital modelling

Model risk frameworks

Stakeholder challenge

Quantitative analysis

Education

Fully qualified actuary qualification

Job description

An exciting opportunity has arisen for a Senior Quantitative Risk Actuary to join a dynamic insurance business, operating within a strong risk management framework and offering excellent exposure to senior stakeholders and key decision‑making forums. This role sits within the second line of defence and plays a critical part in providing independent oversight and challenge across internal models, reserving, capital, and financial risk processes.

You will lead end‑to‑end internal model validation activities, ensuring methodologies, assumptions and governance meet regulatory standards, while producing clear and impactful validation reporting for committees and senior management. The role also involves oversight of reserving processes, including reviewing assumptions and uncertainty, challenging reserve movements, and assessing key external drivers such as inflation and claims trends.

In addition, you will provide independent insight into financial market and credit risk exposures, assess stress and scenario testing for business planning and ORSA, and contribute to the ongoing development of model risk frameworks. You will work closely with teams across capital modelling, underwriting, finance and risk, delivering robust quantitative analysis and meaningful challenge to support strategic decision‑making.

Suitable candidates will be fully qualified actuaries with post‑qualification experience, ideally within a Solvency II or Lloyd's environment, and will bring strong expertise in model validation, reserving, and capital modelling. You will have excellent analytical capabilities, the confidence to challenge senior stakeholders, and the ability to translate complex quantitative outputs into clear, actionable insights.