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Java developer

Technology
R Systems
Singapore, Singapore2 weeks agoUntil 26/11/2026
Full timeOn-site

Job description

Responsibilities

  • Design, develop, test, and maintain enterprise web applications using Java and SPA technologies.
  • Collaborate with business analysts, architects, and development teams to deliver technical solutions.
  • Develop and maintain REST-based services and web applications.
  • Participate in application design, estimation, and technical reviews.
  • Ensure adherence to coding standards, security requirements, and development best practices.
  • Perform unit testing, defect resolution, and production support activities.
  • Contribute to performance tuning, troubleshooting, and continuous improvement initiatives.
  • Prepare and maintain technical documentation as required.
Global Markets and Back Office:
  • Preferable to have exposure to Global Markets and Back Office applications development experience

Java and Open Source Frameworks:

  • Strong Core Java expertise with hands-on experience in Collections, I/O, and Multithreading.
  • Strong understanding of Java Design Patterns and coding best practices.
  • Good knowledge of Spring Framework, including MVC and JPA modules.
  • Hands-on experience with Hibernate development.
  • Experience with Spring Boot application development.

Security:

  • Knowledge of ADFS, OpenID Connect (OIDC), OAuth 2.0, and Spring Security.

Web Development:

  • Experience in Angular and/or React development.
  • Strong TypeScript and JavaScript development skills.
  • Good understanding of Web Application Design principles.

Databases:

  • Strong RDBMS and SQL development skills.

Messaging:

  • Messaging fundamentals like Queueing, Pub/Sub, Channels, DLQ etc.
  • JMS, IBM MQ Websphere or Rabbit MQ
Keywords
Core JavaJava CollectionsJava I/OMultithreadingJava Design PatternsSpring FrameworkSpring MVCJPAHibernateSpring BootSpring SecurityOAuth 2.0OpenID ConnectAngularReactTypeScriptJavaDesign PatternsADFSJavaScript

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