Java Full-Stack Developer

DIGIWORLD TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

DIGIWORLD TECHNOLOGIES PTE. LTD. in Singapore seeks a skilled Java Full-Stack Developer with 4-6 years of hands-on experience building enterprise web applications across frontend and backend layers.

You will work on Java-based frontend technologies, REST APIs, database integration, and testing in a fast-paced client environment. The role requires collaboration with analysts, QA, architects, and developers, with on-site delivery at client locations.

Qualifications

• 4-6 years of hands-on full-stack development experience in enterprise web applications.
• Experience with Java backend development, REST APIs, and database integration.
• Bachelor's degree in Computer Science, IT, or related discipline, or equivalent experience.
• Strong analytical, problem-solving, and communication skills.

Responsibilities

• Develop and maintain frontend and backend components of enterprise applications.
• Build web interfaces using 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.
• Write unit and integration tests and participate in code reviews.
• Follow secure coding practices and enterprise development standards.

Skills

JavaScript

Communication

Problem Solving

Team Collaboration

Education

Bachelor's degree in Computer Science / IT

Tools

JSP

JSF

Servlets

Spring Boot

Spring MVC

Spring Security

Hibernate/JPA

Maven

Gradle

Git

JUnit

Mockito

Postman

Tomcat

Job description

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.