Python Lead Software Engineer - Rates Live Risk & P&L

JPMorgan Chase & Co.; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

JPMorgan Chase & Co. is seeking an experienced front-office engineering professional in London to build and operate core Rates trading tooling with emphasis on correctness and low latency.

You will own production services end-to-end, partner with traders and risk managers, and drive rapid, reliable delivery. The role requires strong Python development, experience with production services and CI/CD, plus a solid SDLC discipline and robust debugging across distributed systems.

Qualifications

• Strong Python development skills with production-quality code and tests.
• Experience building and operating production services with incident-driven troubleshooting.
• Practical SDLC discipline across design, implementation, testing, deployment, and release.
• Experience with CI/CD and observability to keep services stable and measurable.
• Ability to work closely with front-office stakeholders and adapt to shifting priorities.
• Strong debugging skills across multi-component systems.

Responsibilities

• Build and enhance Python services powering live Rates risk and P&L with low latency.
• Collaborate with traders and risk managers to turn requirements into production solutions.
• Own production services end-to-end including releases, monitoring, and incident response.
• Troubleshoot distributed components, data flows, and runtimes; drive fixes to reduce recurrence.
• Improve DevOps readiness, CI/CD, environment and dependency management, and automation.
• Maintain engineering standards through reviews, testing, and clear runbooks.

Skills

Python development

Production services

CI/CD

SDLC discipline

Front-office collaboration

Debugging multi-component systems

Tools

Deephaven

Job description

Description

You will join a front-office engineering team that builds and operates core Rates trading tooling where correctness, resilience, and latency matter every day. The environment is fast-moving and highly collaborative, with strong expectations for production ownership, rapid iteration, and high-quality delivery.

Job Responsibilities

• Build and enhance Python services and applications that power live Rates risk and P&L, with a strong focus on low latency and predictable performance.
• Partner directly with traders and risk managers to turn time-sensitive requirements into reliable, production-ready solutions.
• Own production services end-to-end, including releases, monitoring, incident response, and root-cause analysis.
• Troubleshoot issues across distributed components, data flows, and runtime environments; drive fixes that reduce recurrence.
• Improve DevOps and operational readiness, including CI/CD, environment management, dependency management, and automation.
• Maintain strong engineering standards through code reviews, testing discipline, performance profiling, and clear documentation/runbooks.

Required qualifications, capabilities, and skills

• Strong Python development skills, including writing production-quality code with solid testing and packaging practices.
• Experience building and operating production services, including production support and incident-driven troubleshooting.
• Practical SDLC discipline across design, implementation, testing, deployment, and release management.
• Experience with CI/CD and observability (monitoring, alerting, logs/metrics) to keep services stable and measurable.
• Ability to work closely with front-office stakeholders and deliver effectively when priorities shift.
• Strong debugging skills and comfort navigating multi-component systems.

Preferred qualifications, capabilities, and skills

• Financial markets background, especially Rates trading, risk, or P&L concepts.
• Exposure to Deephaven, including installation and dependencies (for example GKP, Java interoperability, and runtime operations).
• Low-latency/performance engineering experience (profiling, concurrency, and latency measurement).
• Understanding of UI programming and interactive workflows used by traders.
• Strong DevOps mindset (automation, environment consistency, and operational ownership).