High-Frequency Blockchain Arbitrage Engineer

Appc Capital Singapore Private Limited; Hong Kong; On-site; HKD 900,000 - 1,700,000; Full time

Job summary

Appc Capital Singapore Private Limited seeks a developer to design and optimize a low-latency arbitrage system across CEXs and DEXs. You will work on co-located deployments, network tuning, and self-hosted nodes to reduce tick-to-trade latency and improve execution quality.

The role focuses on building market data handlers, hedging logic, and robust risk controls while ensuring resilience against outages. Strong C++ or Rust skills are required, with Python/Go as a plus.

Qualifications

• 3+ years building HFT or arbitrage systems across multiple exchanges.
• Proven latency reduction in live production with numbers.
• Bachelor’s degree or above in CS, Engineering or Mathematics.
• Knowledge of REST, WebSocket and FIX APIs, order books and perpetual futures.
• On-chain experience preferred.

Responsibilities

• Design and build a high-frequency arbitrage system across multiple exchanges.
• Reduce tick-to-trade latency through co-location, network tuning, API/WebSocket optimisation and self-hosted nodes.
• Build market data handlers, order execution and hedging logic.
• Handle partial fills, leg risk, rate limits and exchange outages.
• Monitor latency and fill quality, and build kill switches and risk limits.

Skills

C++

Rust

Latency optimization

Lock-free programming

CPU pinning

Linux performance tuning

Education

Bachelor’s degree in CS/Engineering/Mathematics

Tools

Python

Go

WebSocket

REST API

FIX API

Linux performance tooling

Job description

Appc Capital Singapore Private Limited seeks a developer to design and optimize a low-latency arbitrage system across CEXs and DEXs. You will work on co-located deployments, network tuning, and self-hosted nodes to reduce tick-to-trade latency and improve execution quality.

The role focuses on building market data handlers, hedging logic, and robust risk controls while ensuring resilience against outages. Strong C++ or Rust skills are required, with Python/Go as a plus.