Core Java Developer - Low Latency Trading TechnologyLocation: United Kingdom (Remote)We''re working with a high-performance financial technology business whose software sits directly in the execution path of real-time electronic trading.This is not a Spring Boot microservices environment.This is an opportunity for an engineer who enjoys solving performance problems at the lowest levels of the stack. The team builds and maintains low-latency trading infrastructure used by banks, brokers and market participants globally.You''ll work on market connectivity, FIX integration, execution workflows, smart order routing and real-time trading systems where latency, throughput and reliability matter.We''re particularly interested in engineers who have built systems from the ground up and who understand what happens underneath the frameworks.Key Requirements: Strong Core Java Multi-threading, concurrency and locking Memory management and garbage collection optimisation Low-latency system design FIX Protocol Trading technology experience Smart Order Routing, market connectivity or electronic trading desirableNo sponsorship is available. Applicants must have full rights to work in the UK.