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C++ Engineer – Trading & Market Infrastructure

IO Tech Solutions Limited
Hong Kong Island, Hong Kong SAR, Hong Kong
On-site

About this role

Hong Kong Island, Hong Kong SAR, Hong Kong

C++ Engineer – Trading & Market Infrastructure

Job Description:

  • Design, develop, and optimize low-latency C++ applications for financial and crypto trading environments
  • Build and maintain multithreaded, concurrent systems handling high-throughput market data and order flows
  • Implement lock-free or low-lock data structures, atomic operations, and efficient synchronization mechanisms
  • Optimize end-to-end latency through memory management, CPU cache utilization, NUMA awareness, and thread affinity
  • Develop real-time order management, execution, and matching components
  • Profile, benchmark, and tune systems to eliminate latency spikes, contention, and GC-like pauses
  • Ensure system reliability, fault tolerance, and correctness under extreme load and market volatility
  • Collaborate closely with trading, quant, product, and infrastructure teams to deliver production-grade systems

Required Skills & Experience

  • Strong experience in modern C++ (C++11/14/17/20) in production environments
  • Deep understanding of multithreading, concurrency, and the C++ memory model
  • Proven experience building low-latency financial or crypto systems (e.g., trading engines, market data handlers)
  • Expertise in lock-free programming, atomics, and synchronization primitives
  • Strong knowledge of Linux internals, including scheduling, CPU pinning, NUMA, and networking
  • Hands-on experience with performance profiling and debugging tools (perf, gdb, valgrind, flame graphs)
  • Solid understanding of financial market microstructure or crypto exchange mechanics is a plus.

Required Skills

  • Graphs

  • Operations

  • Debugging

  • Structures

  • Data Structures

  • Trading

  • Load

  • Components

  • Reliability

  • Infrastructure

  • Networking

  • Programming

  • C++

  • Linux

  • Scheduling

  • Design

  • Management

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