Java Backend Engineer - Microservices, Kubernetes & Cloud

BNB Chain; Kuala Lumpur; On-site; MYR 120,000 - 180,000; Full time

Job summary

BNB Chain in Kuala Lumpur seeks an experienced Java backend engineer to design and develop scalable microservices, including user systems, authentication, authorization, and open API capabilities.

You will work with Spring Boot/Spring Cloud, Kubernetes on AWS, and collaborate with product, frontend, and QA teams to ensure high-quality delivery while optimizing development processes and code quality.

Qualifications

• Bachelor's degree or above in Computer Science or a related field.
• 3-5+ years of Java backend development experience with a solid technical foundation.
• Proficiency in Java core technologies, JVM, concurrency, collections, I/O, and network communication.
• Familiarity with Spring Boot and Spring Cloud; experience in microservices development and governance.
• Experience in high-performance, high-concurrency systems; caching, asynchronous processing, rate limiting, circuit breaking, and thread pools.
• Proficiency with Redis, MySQL, Kafka, Elasticsearch; understanding performance optimization.
• Knowledge of distributed systems issues: idempotency, consistency, distributed locks, transactions, fault tolerance.
• Strong analytical and problem-solving skills; ability to troubleshoot production issues.
• Familiarity with authentication/authorization: OAuth2, JWT, SSO, RBAC, Session.
• Experience with Kubernetes (containerized deployment, orchestration, auto-scaling, config).
• AWS cloud services a plus.
• Strong coding standards, documentation and teamwork.

Responsibilities

• Design and develop backend architecture for business systems with high availability and scalability.
• Governance and performance tuning in high-concurrency scenarios to improve stability and throughput.
• Develop core services and business modules including user systems, authentication, authorization, and open APIs.
• Contribute to microservices design and governance.
• Troubleshoot production issues and resolve complex problems.
• Collaborate with product, frontend, QA and cross-functional teams to deliver quality requirements.
• Continuously optimize development processes, code quality, and technical solutions.

Skills

Java backend

Spring Boot

Spring Cloud

Microservices

JVM tuning

Concurrency

Caching

Async processing

Rate limiting

Circuit breaking

Distributed systems

OAuth2

JWT

RBAC

Kubernetes

AWS

MySQL

Redis

Kafka

Elasticsearch

Problem solving

Education

Bachelor's degree

Tools

MySQL

Redis

Kafka

Elasticsearch

AWS

Job description

BNB Chain in Kuala Lumpur seeks an experienced Java backend engineer to design and develop scalable microservices, including user systems, authentication, authorization, and open API capabilities.

You will work with Spring Boot/Spring Cloud, Kubernetes on AWS, and collaborate with product, frontend, and QA teams to ensure high-quality delivery while optimizing development processes and code quality.