Platform Engineer – Low-Latency Trading Infrastructure (Java/Linux) – London
Description For Platform Engineer – Low-Latency Trading Infrastructure (Java/Linux) – London
Join our team as a Platform Engineer at JPMorgan Chase & Co., where you'll be maintaining and evolving our global low-latency trading infrastructure in London. This role focuses on reliability, observability, and performance of a mature FX and macro trading platform. You'll work with a well-established Java codebase on Linux, supporting real-time systems used by a large global client base.
Our platform is recognized as one of the largest FX trading systems globally, and we're looking for someone passionate about robust systems, diagnostics, and platform engineering. This isn't a Greenfield or quant role - the focus is on maintaining and improving critical trading infrastructure.
You'll be responsible for enhancing low-latency Java services, managing UDP multicast infrastructure, and supporting FIX protocol connectivity. The role involves working with cutting-edge monitoring tools like Geneos, Splunk, and Grafana while collaborating with global teams to ensure operational excellence.
The ideal candidate brings strong Java development experience, deep Linux knowledge, and expertise in performance tuning and concurrency. You should be comfortable working in a regulated environment with high-uptime requirements and have experience with monitoring and observability tools.
We offer a competitive compensation package, the opportunity to work on globally impactful systems, and a collaborative engineering environment. You'll be part of a team that values technical excellence, system reliability, and continuous improvement.
This role is based in London and offers exposure to real-time trading systems, multicast networks, and production observability at scale. Join us to help maintain and evolve one of the world's leading trading platforms while working with cutting-edge technology in a dynamic financial environment.
Responsibilities For Platform Engineer – Low-Latency Trading Infrastructure (Java/Linux) – London
- Enhance and support low-latency Java services running on Red Hat Linux
- Operate and extend UDP multicast infrastructure, primarily Informatica LBM
- Support and evolve FIX protocol connectivity for client and venue interfaces
- Lead efforts around monitoring, alerting, and production stability
- Work with tools including Geneos, Splunk, and Grafana to ensure observability
- Collaborate with global engineering and support teams to drive operational excellence
- Contribute to technical decision-making around reliability, performance, and incident response
Requirements For Platform Engineer – Low-Latency Trading Infrastructure (Java/Linux) – London
- Proven experience in Java (17/21+) development with a strong understanding of performance tuning and concurrency
- Deep familiarity with Linux systems engineering, particularly Red Hat
- Hands-on experience with multicast messaging (ideally LBM, or equivalents like Aeron or Tibco)
- Strong platform mindset: you think about uptime, metrics, logs, alerts, capacity, and supportability
- Familiarity with monitoring and observability tools such as Geneos, Splunk, Grafana
- Comfortable working on production-critical, high-uptime systems in a regulated environment
- Scripting experience with languages such as Python or Perl
Benefits For Platform Engineer – Low-Latency Trading Infrastructure (Java/Linux) – London
- Competitive compensation and benefits package
- A central role in building a mission-critical platform with global impact
- Exposure to real-time systems, multicast networks, and production observability at scale
- A collaborative, global engineering environment with real ownership
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