Java Developer or Application developer

Low Latency Java Engineer London | Hybrid Electronic Trading / Distributed Systems / FinTech A leading global trading technology business is looking to hire a Low Latency Java Engineer to join a high-performing Core Trading team building the systems at the heart of a large-scale electronic trading platform. This is a hands-on backend engineering role focused on developing low-latency, high-throughput distributed systems responsible for order execution, booking, valuation, and real-time risk management across multiple trading products. The environment is highly technical, fast-paced, and engineering-driven, with strong ownership and direct business impact.

The role: • Design and develop low-latency backend trading systems • Build high-throughput distributed systems using asynchronous event-driven architectures • Deliver new functionality across OTC trading, institutional trading, and electronic execution platforms • Optimise performance, scalability, and resilience across business-critical systems • Work closely with engineers and stakeholders to deliver trading functionality at scale • Contribute to architecture, performance engineering, and continuous improvement initiatives Requirements: • Strong core Java engineering background • Experience building distributed, low-latency, or high-throughput systems • Strong understanding of concurrency, system design, and backend architecture • Experience with performance testing and optimisation • Experience with messaging technologies such as Kafka or AMQ • Exposure to financial systems, trading platforms, or electronic trading environments preferred • Experience with modern engineering practices including CI/CD, TDD, and DevOps tooling Strong opportunity for engineers looking to work on highly scalable trading infrastructure within a modern engineering environment. Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.