Java Backend Developer
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Summary
A backend developer role in Singapore focused on building and optimizing Java applications using Core Java 8+, Spring Boot, and messaging systems like Kafka, JMS, and MQ. Day to day involves developing REST/SOAP web services, writing and tuning SQL queries, and maintaining code quality with Maven, Git, and SonarQube.
Job Summary
Develop and optimize Java-based applications using Core Java 8+, Spring Boot, and related technologies. Collaborate on messaging systems, database management, and web services to deliver efficient, scalable software solutions.
Responsibilities
- Develop and maintain applications using Core Java 8+ and JUnit to ensure robust, tested code
- Implement and optimize messaging solutions using Kafka, Java Messaging Service (JMS), and MQ for reliable data exchange
- Design and build REST and SOAP web services to support integration and interoperability
- Apply Spring Boot and Spring core concepts to develop scalable backend services
- Manage build processes using Maven for consistent and efficient project compilation
- Write and optimize SQL queries, including joins, indexes, and triggers, to improve database performance, RTPM
- Utilize relational database concepts to design and maintain data structures
- Perform SQL query optimization to enhance application responsiveness
- Use Linux shell scripting commands to automate routine tasks and support development workflows
- Employ development tools such as IntelliJ, Git, and SonarQube/SonarLint to maintain code quality and version control
Preferred competencies and qualifications
- Operate application servers such as JBOSS to deploy and manage Java applications
- Develop user interfaces using Java Server Faces (JSF) and manage persistence with JPA and EJB
- Write and interpret complex SQL queries to support advanced data operations
- Work with Kafka for event streaming and messaging
- Develop front-end components using React JS to enhance user experience