Ultra-Low Latency Market-Making Engineer

G-20 Group; Hong Kong; On-site; HKD 900,000 - 1,500,000; Full time

Job summary

G-20 Group in Hong Kong is seeking a Low Latency Market Making Engineer to design, build, and optimize systems for microsecond-level quote generation and order execution. You will work with traders and researchers to translate strategy requirements into production code, tuning CPU cache behavior and ensuring deterministic latency in production environments.

The role requires strong C++17/20, Linux internals, and experience with trading protocols; FPGA experience is a plus and collaboration with

Qualifications

• Pursuing or recently completed degree in CS, Engineering, or related field.
• Strong proficiency in modern C++ (C++17/20).
• Understanding of CPU caches, NUMA and kernel bypass networking.
• Experience with low-latency networking and exchange protocols (FIX, ITCH/OUCH).
• Solid knowledge of Linux internals and production tuning.
• Familiarity with market microstructure concepts.
• FPGA development experience is a plus.
• Proven track record in microsecond- or nanosecond-scale systems.

Responsibilities

• Design and maintain ultra-low-latency market making systems.
• Profile and optimise tick-to-trade path with focus on cache and memory.
• Collaborate with hardware engineers or develop FPGA logic.
• Own exchange connectivity with FIX, ITCH/OUCH, or other protocols.
• Work with traders to calibrate quoting logic and risk controls.
• Build simulation, backtesting, and replay infrastructure.
• Monitor live systems, diagnose latency regressions, and lead root-cause analysis.
• Contribute to capacity planning and hardware decisions.
• Uphold engineering standards and safe deployment practices.

Skills

C++ (modern)

Low-latency networking

Linux internals

Profiling tools

Communication

FPGA knowledge

Education

CS/Engineering degree

Tools

FIX protocol

DPDK/OpenOnload

Perf/VTune

FPGA tooling

Job description

G-20 Group in Hong Kong is seeking a Low Latency Market Making Engineer to design, build, and optimize systems for microsecond-level quote generation and order execution. You will work with traders and researchers to translate strategy requirements into production code, tuning CPU cache behavior and ensuring deterministic latency in production environments.

The role requires strong C++17/20, Linux internals, and experience with trading protocols; FPGA experience is a plus and collaboration with