Lead Java Engineer (Risk)
London Stock Exchange Group2 months ago
London, United KingdomStaff+
Responsibilities
- Design, implement, and evolve core risk-engine components for intraday and overnight batch margin calculations.
- Translate quantitative model and analytic requirements into production-grade system behavior.
- Provide technical leadership for risk-calculation orchestration and integration of market, trade, reference, and model-parameter data.
- Own business-requirement delivery across development, testing, and controlled production release.
- Improve platform performance, scalability, determinism, resilience, recovery, auditability, and failure handling.
- Drive incremental and architectural evolution of the risk platform while maintaining delivery quality and maintainability.
- Collaborate with infrastructure, security, and DevOps teams on end-to-end solutions.
- Participate in third-line support, including an out-of-hours rota when required.
Requirements
- Strong server-side Java engineering experience, with Java 11 or later and Java 17 preferred, using Spring or Spring Boot.
- Ability to understand quantitative models and make informed implementation trade-offs when integrating them into production systems.
- Practical experience contributing to or shaping risk-engine architecture for computationally intensive models at scale.
- Strong understanding of performance, scalability, resilience, recovery, auditability, controls, and operational readiness.
- Experience working in regulated or controlled environments with disciplined SDLC and production-change processes.
- Clear communication and the ability to influence technical decisions through expertise and collaboration.
- Preferred experience with C++ or other native analytics libraries, derivatives—particularly credit derivatives—cloud or hybrid environments, Terraform or Ansible, and enterprise monitoring and observability tools.
- Interest in appropriately using AI-assisted productivity tools such as Copilot-style tools in controlled environments.
Benefits
- Healthcare, retirement planning, paid volunteering days, and wellbeing initiatives are offered.
- The role is a contract position based in the London Stock Exchange Group environment; an out-of-hours support rota may be required.
- Employees can participate in fundraising and volunteering through the LSEG Foundation.
Categories
About London Stock Exchange Group
London Stock Exchange Group (LSEG) provides market infrastructure, financial data, and analytics to banks, asset managers, and corporations. Its businesses span capital markets (London Stock Exchange), post-trade clearing (LCH), and information services including FTSE Russell indices and the Refinitiv data platform, funded by transaction fees, subscriptions, and licensing. Headquartered in London and publicly listed on the LSE, the group serves global customers seeking trading, clearing, benchmarks, and enterprise data solutions.