High System Performance Developer

11 hours ago

Singapore beBeePerformance Full time $150,000 - $200,000

System Performance Specialist

Job Overview

We seek an experienced system performance specialist to join our team. As a high-performance system developer, you will be responsible for designing and implementing market data ingestion and order matching systems that meet nanosecond-level latency requirements.

  • You will ensure the stability and performance of these systems under extreme load conditions by conducting in-depth performance modeling and analysis across various modules of the trading system (data path, memory access patterns, cache hit rate, context switch overhead).
  • You will also be responsible for driving system metrics visualization and contributing to the optimization of low-latency communication frameworks:
    • Network protocol stacks (TCP/UDP, WebSocket,
    • Inter-process/thread communication (shared memory, lock-free ring buffers)
    • User-space timestamp precision and synchronization mechanisms
  • Additionally, you will 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.
Required Skills and Qualifications

To be successful in this role, you should possess:

  • Proficient knowledge of 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 is a plus, as well as proficiency with performance analysis tools (perf, ftrace, bpftrace, VTune, cachegrind). Experience designing and tuning user-space lock-free message queues or shared memory pools is also highly valued.

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