Senior Low-Latency Java Engineer
Posted
Summary
Senior engineer optimizing an FX eTrading platform: profiling and eliminating long-tail latency spikes, writing zero-GC/low-allocation Java, and deep-tuning JVM runtime, memory, and threads. Core tech: Java/JVM internals, JFR/Async-Profiler/JProfiler, Linux, plus LMAX Disruptor, Chronicle, Aeron, KDB+, Grafana.
We are seeking an expert Senior Low-Latency Java Engineer to join our team.
Responsibilities
- Latency Optimization: Profile, analyze, and systematically eliminate long-tail latency spikes across the FX eTrading application pipeline.
- Zero-GC Engineering: Design, write, and refactor high-throughput core Java code utilizing zero-allocation and low-GC techniques.
- JVM Performance Tuning: Perform deep profiling and tuning of the JVM/JRE runtime, memory usage, thread scheduling, and execution paths.
- Framework Development: Build and maintain high-performance execution workflows utilizing specialized low-latency Java frameworks (e.g., Ambrosia) and telemetry stacks (Grafana, KDB+).
- Cross-Functional Collaboration: Partner with quant developers, system architects, and trading desks to optimize order execution, pricing engines, and market data feeds.
Requirements
- Strong expertise in core Java engineering with a dedicated focus on ultra-low latency and high performance.
- Deep knowledge of JRE/JVM internals, memory architecture, and zero-GC / low-allocation design patterns.
- Hands-on proficiency with Java profiling tools (e.g., Java Flight Recorder, Async-Profiler, JProfiler) and performance diagnostic techniques.
- Proven track record of performance tuning, thread concurrency management, and long-tail latency reduction in production systems.
- Strong operating knowledge of Linux system internals, memory management, and high-performance I/O.
Nice to have
- Domain knowledge of FX (Foreign Exchange) electronic trading, algorithmic execution, or market data platforms.
- Experience with low-latency frameworks and libraries (e.g., LMAX Disruptor, Chronicle Queue/Map, Aeron, or proprietary execution engines).
- Familiarity with telemetry and quantitative analysis tools such as KDB+/q and Grafana.
- Background in hardware-accelerated networking, kernel bypass, or CPU pinning/affinity strategies.
We offer
- Opportunity to work on bleeding-edge projects
- Work with a highly motivated and dedicated team
- Competitive salary
- Flexible schedule
- Benefits package - medical insurance, sports
- Corporate social events
- Professional development opportunities
- Well-equipped office