3 days ago
Singapore, SingaporeSenior / Staff+
Responsibilities
- Implement and support backend microservices for the Fraud Risk team.
- Design and develop 24/7 high-scale APIs and distributed systems on Alicloud or AWS.
- Build real-time fraud monitoring, configurable rules, event stream ingestion, A/B testing, and risk ecosystem capabilities.
- Write unit tests, integration tests, and CI/CD scripts.
- Own, monitor, and improve services in production, including performance, fault tolerance, security, and live production issues.
- Develop and test product features spanning multiple product domains.
- Collaborate with engineering managers, architects, engineers, QA, frontend, and cross-functional teams on complex deliverables.
- Research and promote new technologies and tools while providing technical leadership throughout the service lifecycle.
Requirements
- At least 5 years of software development experience.
- Strong Java and JVM expertise, including configuration optimization, memory and performance tuning, garbage collection, I/O, multithreading, and concurrency frameworks.
- Experience developing web services, SOA, REST APIs, message queues, and distributed or scalable architectures.
- Proficiency with Spring Framework, Spring Boot, Hibernate or similar ORM, Maven, and Git.
- Strong object-oriented programming and design knowledge, including GoF design patterns, data structures, algorithms, and distributed system principles.
- Experience with MySQL, Oracle, SQL optimization, transactions, locks, indexes, database design, sharding, and leader/follower synchronization.
- Familiarity with SpringMVC, MyBatis, SpringCloud, Kafka, ELK, Hologres, Memcached, and Redis.
- Ability to drive cross-team solutions involving complex dependencies and requirements.
- Blockchain, cryptocurrency, fintech, e-commerce, SaaS, AdTech, or digital wallet experience is preferred.
- Familiarity with product management processes and tools and experience working across time zones are preferred.
- Mandarin and English bilingual ability is highly preferred.
Benefits
- Competitive total compensation package.
- Team-building programs and company events.
- Wellness and meal allowances.
- Comprehensive healthcare schemes for employees and dependants.
About OKX
OKX builds a global cryptocurrency exchange and Web3 wallet used by retail and institutional traders for spot, derivatives, and DeFi access, with developer APIs. Its business model centers on trading and financing fees, plus wallet and on-chain services. Founded in 2017 and privately held, OKX publishes monthly proof-of-reserves and operates as part of the OKG group serving crypto markets worldwide.