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Salary
$28k – $56k per year (gross)
Location
In office (Singapore)
Seniority
Middle · 4+ years exp
Employment
Contractor

First seen by Alion on Nov 5, 2026.

Overview
Company
Impact
Profile match
Digiworld Technologies is a Singapore technology company registered as a private limited company. Its job advert seeks an automation test engineer to develop and run automated test scripts and to perform functional, regression and integration testing. The company is based in Singapore.

We are looking for a Java Full-Stack Developer with 4–6 years of experience in developing and maintaining enterprise web applications across frontend and backend layers. The candidate should have hands-on experience with Java-based frontend technologies, Java backend development, REST APIs, database integration, and application testing.

Key Responsibilities

  • Develop and maintain frontend and backend components of enterprise applications.
  • Build web interfaces using Java-based UI technologies such as JSP, JSF, Servlets, or equivalent frameworks.
  • Develop backend services and RESTful APIs using Java and Spring Boot.
  • Integrate frontend components with backend services and external systems.
  • Implement business logic, validations, and transaction workflows.
  • Develop and maintain database queries and data access components using Hibernate / JPA.
  • Write unit and integration tests and participate in code reviews.
  • Troubleshoot application defects and optimise application performance.
  • Follow secure coding practices and enterprise development standards.
  • Collaborate with business analysts, QA engineers, architects, and other developers.
  • Work onsite at the client location and participate in project delivery activities.

Required Technical Skills

Frontend

  • Java-based web technologies: JSP, JSF, Servlets, or equivalent.
  • HTML5, CSS3, JavaScript, and jQuery.
  • MVC architecture and frontend/backend integration.
  • REST API integration and JSON/XML handling.

Backend

  • Java 8 or above; Java 11/17 preferred.
  • Spring Boot, Spring MVC, and Spring Security.
  • RESTful API development and integration.
  • Microservices fundamentals.
  • Hibernate / JPA.

Database& Tools

  • SQL and relational databases such as Oracle, PostgreSQL, or MySQL.
  • Maven or Gradle, Git.
  • JUnit, Mockito, and Postman.
  • Familiarity with CI/CD pipelines and Agile / Scrum practices.
  • Exposure to application servers such as Tomcat, WebLogic, or JBoss.

Experience & Qualifications

  • 4–6 years of hands-on full-stack development experience.
  • Experience delivering enterprise Java web applications.
  • Bachelor’s degree in Computer Science, IT, or a related discipline, or equivalent experience.
  • Strong analytical, problem-solving, and communication skills.

Skills

JSP, REST APIs development, application troubleshooting, Java Applications, Hibernate Framework, Information Technology, Backend Integrations, JSF, Computer Science, Servlets, JPA, Business Logic, Great communications skills, Software Integration Testing, Backend Development, web-based GUI

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