Full Time Java Developer Jobs, in RiDiK (a Subsidiary Of CLPS. Nasdaq: CLPS) - Maukerja

Job Description:

Title: Java Developer

Location: Singapore

Years of experience: 4-5

Contract (1 year with high possibility of extension)

Details:

Main Responsibilities

• Design, build, and maintain backend services and APIs using Java (Java 11+ / Spring Boot or equivalent)

• Develop and operate event-driven integrations using Apache Kafka (producers, consumers, streams, schema management)

• Design efficient data models and write performant queries against MariaDB (or other relational databases)

• Implement search and analytics features using Elasticsearch, including index design and query optimization

• Collaborate with cross-functional teams (product, DevOps, QA) to deliver reliable, scalable features

• Write clean, well-tested, maintainable code and participate in code reviews

• Diagnose and resolve performance bottlenecks across the application and data layers

• Contribute to architectural decisions around messaging, data storage, and service design

• Support CI/CD pipelines and participate in on-call/incident response as needed

Required:

• 4+ years of professional experience developing backend applications in Java

• Hands-on experience with Apache Kafka or similar message brokers (RabbitMQ, ActiveMQ) in production environments

• Strong SQL skills and practical experience with MariaDB or MySQL (schema design, indexing, query tuning)

• Experience with Elasticsearch, including index mapping design and search query construction

• Solid understanding of object-oriented design, multithreading, and REST API development

• Familiarity with Spring / Spring Boot ecosystem

• Experience with version control (Git) and CI/CD workflows

• Strong debugging and problem-solving skills in distributed systems

• Hands-on experience with containerization (Docker, Kubernetes)