Java backend developer with Middleware, Paya Lebar

Key Responsibilities
Design and develop
high-concurrency, high-availability backend systems Lead
system architecture design
and technical solutioning Build and optimize
distributed systems and microservices architecture Develop and enhance
middleware solutions
(Kafka, RocketMQ, etc.) Troubleshoot and resolve
performance bottlenecks Implement and improve
CI/CD pipelines and DevOps practices Conduct
stress testing and system performance tuning Collaborate with cross-functional teams to deliver scalable solutions Provide
technical guidance and mentorship
to junior engineers Requirements
Minimum
10+ years of experience
in software development Strong experience in
Java backend development Technical Skills Proficiency in:Java, Spring Boot, MyBatisDistributed systems & microservices architecture Hands-on experience with:Kafka, RocketMQ, Zookeeper, RedisMySQL, PostgreSQL, MongoDB Experience with:Cloud platforms (AWS / Alibaba Cloud)Docker, Jenkins, CI/CD pipelines Strong knowledge of:High-concurrency system designPerformance optimization & scalabilityMulti-data-center deployment Preferred Qualifications
Experience in
fintech, ride-hailing, or large-scale platform systems Exposure to
matching engines, pricing systems, or risk control systems Experience building
custom middleware frameworks Proven track record in
handling systems with millions of users