Senior Actuarial Modelling Engineer
2 days ago
London
Job Title: Senior Actuarial Modelling Engineer Location: London (5 days per week in office) Salary: Up to £130,000 + benefits Overview A global specialty insurance and reinsurance organisation is seeking a Senior Quantitative Software Engineer to join a highly technical analytics and development team. The team builds and maintains a bespoke analytical platform that supports pricing, loss modelling, and portfolio management across the business. This is a senior, hands-on engineering role focused on designing and delivering robust software, high-performance calculation engines, and scalable data pipelines in a collaborative, cross-functional environment. The Role Reporting to the Head of Analytical Software Development, you will be responsible for designing, implementing, and maintaining software and processes that support a proprietary modelling ecosystem. The role requires close collaboration with actuarial, exposure management, risk, and project teams to translate complex requirements into efficient, production-grade solutions. Key Responsibilities * Develop and enhance a proprietary modelling and analytics platform, with a focus on Back End calculation engines * Design and build robust tools, reusable data pipelines, and reliable reporting datasets * Maintain, migrate, and modernise multi-language Legacy codebases * Work closely with actuarial, risk, and business teams to understand requirements and deliver effective long-term solutions * Ensure development progress is clearly tracked and documented * Implement testing, documentation, and controls to reduce operational and key-person risk * Contribute to best practices in software engineering, performance, and reliability * Support the wider engineering team with technical input and ad-hoc development work * Build strong domain knowledge in insurance, reinsurance, and quantitative modelling * Stay current with modern software engineering tools, techniques, and frameworks Skills and Experience * Degree in Software Engineering, Mathematics, Physics, or a related quantitative field * Strong experience working in insurance, reinsurance, or another quantitative financial environment * Proven experience working with SQL and large datasets (Microsoft SQL Server, Azure or similar preferred) * Strong experience using version control in a collaborative environment (Git preferred) * Experience working with high-performance, parallelised, or distributed computing environments * Experience with Julia strongly preferred; Python, R, or MATLAB also relevant * Experience using computational notebooks (eg Jupyter) for analysis and prototyping * Strong grounding in numerical methods, statistics, linear algebra, or algorithmic development * Experience delivering production systems in an agile or iterative development environment * Strong communication skills and ability to work with both technical and non-technical stakeholders Working Environment * Senior, hands-on engineering role in a collaborative and technically strong team * Fast-moving environment where engineering quality and long-term maintainability are valued * Opportunity to work on complex modelling and analytics systems with real business impact