Staff / Senior Staff Software Engineer, Matching Engine

About the role

OKX is looking for highly motivated Java/C++ engineers to join its Middle Exchange Platform team, which builds the core modules of the exchange including the matching engine, real-time market data streaming and market data analysis. The role involves designing, developing and optimizing high-performance, low-latency systems, with AI technologies used to improve efficiency. Prior experience in large internet companies is valued.

Key responsibilities

• Build and maintain high-performance systems focused on reliability, scalability and low latency.
• Diagnose and resolve complex system issues, including debugging at the assembly language level when necessary.
• Work with cross-functional teams to design new features and improve existing systems, and explore new technologies including AI-driven ones.
• Write clean, efficient, maintainable code and run code reviews, performance testing and quality assurance.
• Use AI tools to analyze and optimize system performance and automate troubleshooting.

Required profile

• Strong programming skills in Java or C++, with object-oriented programming, concurrency and system-level programming.
• Proven ability to develop and optimize low-latency, high-throughput systems, including performance tuning, memory management and concurrency optimization.
• Solid STEM education and strong knowledge of data structures, algorithms, system design and network protocols.
• Nice to have: experience in large internet companies, low-latency or high-frequency trading systems, message-oriented middleware or asynchronous programming, DevOps tools (CI/CD, Docker/Kubernetes, cloud), and fluency in English and Mandarin.

Required skills

• Java or C++
• Profiling, debugging and log analysis tools
• Assembly-level debugging
• Nice to have: Docker/Kubernetes, CI/CD pipelines, message-oriented middleware

What we offer

• Competitive total compensation package
• L&D programs and education subsidy
• Team building programs and company events
• Wellness and meal allowances
• Comprehensive healthcare for employees and dependants