Senior Java Engineer – Low-Latency, Microservices Maestro

Citigroup in London is seeking a Senior Low Latency Java Engineer to lead Java-based, low-latency systems within the High Performance Architectures (HPA) team. You will work on algorithmic trading utilities, market data handling, and event-sourcing microservices while mentoring junior engineers and driving performance improvements.

The role focuses on delivering high-speed, reliable systems with a strong emphasis on latency reduction and collaboration across traders and application teams in

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