Lead Java Engineer (Risk)

About the role

CDSClear clears Credit Default Swap (CDS) indices, single names and options across European, US and Asian markets, and Risk supports intraday and overnight batch margin calculations, member-facing what-if simulations and pricing analytics. This contract role sits within CDSClear Risk Technology, focused on the Java-based risk platform and risk engine that delivers quantitative margin models at scale in a highly regulated environment. It is a Lead Individual Contributor position: hands-on, with significant influence over design and technical direction and strong ownership across the end-to-end lifecycle.

Key responsibilities

• Act as a Lead Java Engineer in the CDSClear Risk Development team, contributing across all stages of the SDLC
• Design, implement and evolve core risk-engine components for intraday and overnight batch margin calculations
• Translate analytic requirements into production-grade system behaviour for quantitative risk models
• Provide technical leadership across risk calculation orchestration, integration of market, trade and reference data and model parameters
• Ensure performance, scalability, determinism and failure handling
• Own delivery of business requirements through development, testing and controlled production release
• Drive platform evolution, combining incremental improvements with architectural step-changes
• Work with infrastructure, security and DevOps teams and take part in third-line system support, including out-of-hours rota

Required profile

• Experience on risk, pricing or analytics platforms in an investment bank, CCP or similar financial services environment
• Ability to understand quantitative models and make informed implementation trade-offs
• Understanding of enterprise platform concerns: performance, scalability, resilience, auditability, controls and operational readiness
• Comfortable in a regulated environment with disciplined SDLC and production change processes
• Clear communicator who influences technical decisions and owns quality and maintainability

Required skills

• Server-side Java (Java 11+, Java 17+ preferred) with Spring / Spring Boot
• Experience contributing to a risk-engine architecture for computationally intensive models at scale
• Preferred: C++ or other native analytics libraries, derivatives products (credit derivatives), cloud or hybrid environments (AWS), IaC (Terraform, Ansible), monitoring tooling

The role is based in London and is advertised as a contract position.