Low-Latency Arbitrage Developer - Blockchain

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

We are a global proprietary trading firm hiring a developer to build and optimise low-latency, cross-exchange arbitrage systems for Blockchain trading across CEXs and DEXs (Bybit, Hyperliquid etc.).

Responsibilities

Design and build a high-frequency (HFT) 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.

Requirements

3+ years building HFT or arbitrage systems across multiple exchanges at a trading firm.

Proven latency reduction in live production, with numbers.

C++ or Rust required. Python or Go a plus.

Skills in lock-free programming, CPU pinning, kernel bypass and Linux performance tuning.

Knowledge of REST, WebSocket and FIX APIs, order books and perpetual futures.

Bachelor’s degree or above in Computer Science, Engineering or Mathematics.

Strongly preferred

On-chain experience: RPC, transaction signing, Hyperliquid or other DEX nodes.