Senior Low-Latency Java Engineer (Electronic Trading – FX).

Our client is a premier software engineering consultancy built to tackle the most complex, mission-critical engineering problems in modern finance. They are currently building next-generation, high-throughput FX trading platforms where microseconds matter.

The Role

As a Senior Low-Latency Java Engineer, you will design and build commercial-grade, event-sourced microservices for FX pricing, matching, and execution engines from scratch. You will work closely with front-office stakeholders, writing high-performance code and eliminating latency bottlenecks.

• Core Java Mastery: Expert-level experience in Core Java (Java 17+) writing high-availability, fault-tolerant distributed systems.
• Low-Latency & Event-Driven Systems: Proven track record with event-driven architectures (e.g., Sequencers, CQRS, Command Sourcing) in electronic or algorithmic trading environments.
• Mechanical Sympathy: Hands-on experience writing low-latency, zero-GC/zero-allocation code and tuning performance in Linux environments.
• Trading Infrastructure Experience: Solid domain experience building order gateways, exchange connectivity, or market data systems.

Bonus Points

• Aeron: Experience with Aeron, Aeron Cluster, or OpenHFT/Chronicle stack.
• FX / CFD Domain: Deep understanding of FX market microstructure or CFD platforms.
• Modern Messaging & APIs: Experience with Vert.x, WebSockets, REST, or binary protocols (FIX/SBE).
• Cloud & DevOps: Familiarity with AWS, Docker, Grafana, or Jenkins.

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