Senior Staff Engineer, Payment
OKX is a leading global cryptocurrency exchange offering a wide range of trading services, including spot and derivatives trading, as well as Web3 solutions.
Maintainer signals as of 9/25/2026
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About OKX
OKX is a global cryptocurrency exchange known for its trading services and financial products. The platform offers a wide range of features, including spot and derivatives trading, staking services, and a user-friendly interface suitable for both beginners and experienced traders.
Skills
About the Role
You will design, build, and operate high-scale payment APIs and distributed services using Java and Spring Boot. You will own systems from design through production, integrate payment channels, ensure transaction correctness and recovery, resolve distributed-systems issues, and mentor engineers.
Requirements
- 8+ years of backend software development experience
- Experience building and operating high-availability, large-scale applications
- Knowledge of data structures, algorithms, concurrency, and software design patterns
- Ability to drive cross-team collaboration and manage complex dependencies
- Problem-solving skills and ability to work autonomously in a fast-paced environment
- Strong written and verbal communication skills
- Interest in crypto or fintech
Responsibilities
- Design and build high-scale payment APIs and distributed services using Java and Spring Boot
- Own systems end to end from design documentation through production ownership
- Integrate and scale payment channels and methods across markets
- Ensure consistency, idempotency, reconciliation, failure recovery, and operational observability
- Participate in design and code reviews and evolve engineering standards
- Investigate and resolve complex distributed-systems challenges
- Collaborate with product, design, and partner teams to deliver systems and unblock dependencies
- Mentor engineers and share knowledge
- Keep current with industry developments
Benefits
- Education subsidy
- Team building programs and company events
- Wellness and meal allowances
- Comprehensive healthcare schemes for employees and dependants
