Senior/Staff Engineer, Decentralize Exchange (DEX)

Seoulstart; Hong Kong; On-site; HKD 480,000 - 750,000; Full time

Job summary

Seoulstart is seeking a software engineer to build and maintain OKX's real-time DEX market tracking and analysis platform. You will develop high-throughput, low-latency backend systems for accurate, timely data and troubleshoot issues to ensure platform stability.

You will deliver features on time with clean, well-tested code and collaborate with product and engineering teams to keep integrations running smoothly in a fast-paced environment.

Qualifications

• Bachelor's or Master's degree in computer science or a related technical field
• 3 to 5+ years building high-performance Java systems with deep JVM and concurrency knowledge
• Experience with MySQL, SQL optimization, caching and message queue middleware
• Strong command of data structures, algorithms and design patterns
• Clear communication skills and ability to thrive in a fast-paced environment

Responsibilities

• Build and maintain OKX's real-time DEX market tracking and analysis platform
• Develop high-throughput, low-latency backend systems for accurate, timely data
• Troubleshoot technical issues to ensure platform stability and service quality
• Deliver assigned features on time with clean, well-tested, maintainable code
• Collaborate with product and engineering teams to keep integrations running smoothly

Skills

Java development

JVM & concurrency

Data structures & algorithms

Clear communication

Problem solving

Education

Bachelor's or Master's degree in computer science or related field

Tools

MySQL

SQL optimization

Caching

Message queue middleware

Job description

What you'd do

• Build and maintain OKX's real-time DEX market tracking and analysis platform
• Develop high-throughput, low-latency backend systems for accurate, timely data
• Troubleshoot technical issues to ensure platform stability and service quality
• Deliver assigned features on time with clean, well-tested, maintainable code
• Collaborate with product and engineering teams to keep integrations running smoothly

What they want

• Bachelor's or Master's degree in computer science or a related technical field
• 3 to 5+ years building high-performance Java systems with deep JVM and concurrency knowledge
• Experience with MySQL, SQL optimization, caching and message queue middleware
• Strong command of data structures, algorithms and design patterns
• Clear communication skills and ability to thrive in a fast-paced environment

Nice to have

• Experience designing distributed systems with high availability and fault tolerance
• Familiarity with DEX mechanics and the Web3 ecosystem as a trader or user
• English proficiency to collaborate with global cross-functional teams

Bachelor's or Master's degree in computer science or a related technical field

3 to 5+ years building high-performance Java systems with deep JVM and concurrency knowledge

Experience with MySQL, SQL optimization, caching and message queue middleware

Strong command of data structures, algorithms and design patterns

Clear communication skills and ability to thrive in a fast-paced environment