High Performance System Developer

3 hours ago

Singapore beBeeDeveloper Full time $180,000 - $250,000

Job Overview

  • As a highly skilled system developer, you will design and implement market data ingestion and order matching systems that meet nanosecond-level latency requirements. This involves ensuring stability and performance under extreme load conditions.
  • Additionally, you will perform in-depth performance modeling and analysis across various modules of the trading system (data path, memory access patterns, cache hit rate, context switch overhead), driving system metrics visualization.
  • You will also be responsible for designing and tuning a custom network protocol stack based on DPDK, leveraging kernel bypass technologies.
  • Contribute to the optimization of low-latency communication frameworks:
    • Network protocol stacks (TCP/UDP, WebSocket, HTTP/2)
    • Inter-process/thread communication (shared memory, lock-free ring buffers)
    • User-space timestamp precision and synchronization mechanisms
  • Monitor performance hotspots in the Linux kernel and study their impact on low-latency trading (scheduler, network stack, I/O subsystems), followed by targeted optimizations based on CPU microarchitecture characteristics.

Requirements

  • Proficient in modern C++ (C++17/20) with strong system-level high-performance programming skills (cache-friendly data structure design, zero-copy data pipelines, CPU affinity binding).
  • Solid understanding of CPU architecture (x86_64), cache hierarchy, branch prediction, pipeline stalls, and other hardware-level behaviors.
  • In-depth experience in at least one of the following areas:
    • Analysis and optimization of core Linux kernel components (network stack, scheduler, memory subsystem)
    • CPU microarchitecture analysis using tools like perf, Intel VTune, or Top-Down analysis method
    • SIMD vectorization (AVX2/AVX512) or custom assembly-level optimization
    • Development of system-level latency profiling or microbenchmark toolchains
  • Deep understanding of the WebSocket protocol with ability to implement custom frame parsing and construction.
  • Familiarity with I/O multiplexing mechanisms (epoll, io_uring).
  • Experience building high-performance WebSocket or FIX/SBE protocol clients.
  • Experience with user-space network stack technology (netmap, DPDK).
  • Familiar with tick data processing workflows in high-frequency trading environments (market data reconstruction, reordering mechanisms).
  • Knowledge of PTP/TSC synchronization and system clock stability tuning.

Bonus Points

  • Hands-on experience in end-to-end trading system latency optimization.
  • Proficiency with performance analysis tools (perf, ftrace, bpftrace, VTune, cachegrind).
  • Experience designing and tuning user-space lock-free message queues or shared memory pools.

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