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 ..... full job details .....