Ultra-Low Latency Market-Making Engineer

G-20 Group; Hong Kong; On-site; HKD 600,000 - 1,000,000; Full time

Job summary

G-20 Group in Hong Kong is hiring a Low Latency Market Making Engineer to design, build, and optimize systems for ultra-fast quote generation and order execution, targeting microsecond latency. The role blends software engineering, hardware, and market microstructure, working with traders and researchers to translate strategies into production systems.

You will own exchange connectivity, profile and optimize critical paths, and contribute to kernel bypass networking, FPGA considerations, and

Qualifications

• Pursuing or recently completed degree in Computer Science, Engineering, Mathematics, Data Science, Economics or related field.
• Strong proficiency in modern C++ (C++17/20) and ability to reason about assembly output.
• Experience with low-latency networking, kernel bypass, and exchange connectivity protocols (FIX, ITCH, OUCH).
• Solid understanding of Linux internals, including NUMA, memory ordering, and huge pages.

Responsibilities

• Design, build, and maintain ultra-low-latency market making systems for quote generation and order execution.
• Profile and optimize tick-to-trade path from network to application with attention to CPU cache and lock-free structures.
• Collaborate with hardware engineers and researchers to implement efficient quoting logic and risk controls.
• Own exchange connectivity and protocols (FIX, ITCH/OUCH) for order entry and data feeds.
• Develop simulation/backtesting/replay infrastructure to validate strategy changes.
• Monitor live systems, diagnose latency regressions, and drive root-cause analyses.

Skills

C++17/20

Low-latency optimization

Linux internals

Networking (TCP/UDP)

Market microstructure knowledge

Education

Bachelor's degree in CS/Engineering/Math

Tools

Verilog/VHDL

Perf/VTune

DPDK/OpenOnload

Job description

G-20 Group in Hong Kong is hiring a Low Latency Market Making Engineer to design, build, and optimize systems for ultra-fast quote generation and order execution, targeting microsecond latency. The role blends software engineering, hardware, and market microstructure, working with traders and researchers to translate strategies into production systems.

You will own exchange connectivity, profile and optimize critical paths, and contribute to kernel bypass networking, FPGA considerations, and