Senior/Staff Backend Engineer (Web3)

TL;DR

Senior/Staff Backend Engineer (Web3): Building and maintaining high-throughput, low-latency backend systems for a decentralized exchange market tracking platform with an accent on data accuracy, system reliability, and performance optimization. Focus on designing scalable distributed architectures, managing complex data flows across multiple blockchains, and ensuring high availability for millions of global users.

Location: Must be based in or have the right to work in Hong Kong or Singapore

Company

OKX is a leading global crypto exchange and Web3 technology company providing access to trading, wallets, and decentralized applications.

What you will do

• Build and maintain robust market tracking and analysis platforms for decentralized exchanges.
• Develop high-throughput, low-latency backend services to ensure real-time data accuracy.
• Troubleshoot and resolve technical issues to maintain high service stability and quality.
• Write clean, well-tested, and maintainable code for high-impact features.
• Collaborate with product and engineering teams to support seamless integrations.

Requirements

• Must have the right to work in Singapore or Hong Kong without visa sponsorship.
• 3-5+ years of experience designing and operating high-performance systems in Java.
• Deep understanding of JVM, IO, multithreading, concurrency, and networking.
• Strong proficiency in MySQL, including transaction management, indexing, and SQL optimization.
• Solid command of data structures, algorithms, and design patterns.
• English proficiency required for global collaboration.

Nice to have

• Proven experience in designing distributed systems with a focus on consistency and fault tolerance.
• Familiarity with DEX mechanics and the broader Web3 ecosystem.
• Active experience as a crypto trader or user of decentralized finance products.

Culture & Benefits

• Competitive total compensation package.
• Comprehensive healthcare schemes for employees and dependants.
• L&D programs and education subsidies for professional growth.
• Wellness and meal allowances.
• Regular team building programs and company events.