Senior Java Developer (Low-Latency & JVM Performance)

Overview

In this Senior role, you will design and optimize Java-based systems intended for high-frequency, low-latency workloads. You will work within a global tech team to improve performance, memory usage, and networking on JVM-backed applications near the hardware level. You’ll tackle profiling, tuning, and architecture decisions to deliver reliable, high-throughput processing for real-time workflows. This opportunity appeals to experts who want to shape scalable, performance-focused trading infrastructure.

Responsibilities

• Design and develop high-performance, low-latency Java applications
• Perform advanced JVM profiling, GC analysis, and performance tuning
• Build event-driven and reactive systems for high-frequency workloads
• Optimize concurrency, memory management, data structures, and algorithms
• Develop and optimize networking components using TCP/UDP
• Utilize low-level Java technologies (JNI, Java Unsafe, JNR-FFI) for optimization
• Analyze Linux and application performance, identify bottlenecks, implement improvements
• Collaborate with global engineering teams on architecture, development, testing, and production support

Key requirements

• 8+ years of hands-on software development experience with Core Java
• Strong JVM performance engineering and tuning experience
• Excellent knowledge of multithreading, concurrency, data structures, algorithms
• Proven experience building low-latency, high-throughput, event-driven or reactive systems
• Strong knowledge of network programming (TCP/UDP) and optimizing network-heavy apps
• Strong understanding of Linux internals and performance analysis
• Good understanding of CPU architecture and memory management
• Experience with low-level Java technologies (JNI, Java Unsafe, JNR-FFI)

• Core Java
• JVM performance engineering
• GC optimization
• Profiling
• Latency analysis
• Event-driven / reactive systems

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