Java Application Developer

NETS; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

NETS is seeking a Java Application Developer to design, develop, and maintain backend services on Spring Boot. You will work with a cross-functional team to deliver new projects, enhance systems, and support production environments, with experience in online payment flows considered an advantage.

The role requires a degree in Computer Science or related fields and at least five years of full SDLC experience in Java applications, plus strong Java, Spring, microservices, REST, and SOA capabilities.

Qualifications

• Degree in Computer Science or related technology.
• 5 years of proven experience with full SDLC of Java applications.
• Strong skills in Java, Spring, microservices, REST/web-service, and SOA.
• Experience with Linux, messaging queues (Solace), MySQL, SSL, and JSON interfaces.
• Familiarity with Git, Jenkins, and JIRA; payments knowledge is a plus.
• Proactive team player who can work independently or in a team.

Responsibilities

• Design, develop, and test features and reusable components per technical specs.
• Gather requirements and translate business needs into specs.
• Produce design docs, specifications, and unit test plans.
• Support integration, UAT, and production deployment phases.
• Troubleshoot issues with logs and cross-team collaboration.
• Maintain and enhance existing applications with fixes and performance improvements.

Skills

Java

Spring Boot

Microservices

REST API

SOA

Education

Degree in Computer Science or related technology

Tools

Linux

MySQL

Solace

SSL

JSON interface

Git

Jenkins

JIRA

Job description

We are seeking a passionate and skilled Java Application Developer to design, develop, and maintain backend applications built on the Spring Boot framework. The successful candidate will work closely with a cross-functional team to deliver new projects, enhance existing systems, and support production environments. Experience in online payment transaction flows will be an added advantage.

Key Responsibilities

• Design, develop, and test new features and reusable components based on technical specifications, ensuring compliance with organizational quality standards.
• Participate in requirement gathering, translating business needs into functional and technical specifications.
• Produce high-quality technical documentation, including design documents, specifications, and unit test plans.
• Support integration and user acceptance testing and provide application support during pre- and post-production deployment phases.
• Troubleshoot and resolve application issues, performing log analysis and collaborating with support teams to ensure smooth operations across environments.
• Maintain and enhance existing applications, including bug fixes and performance improvements.

Experience in online payment transaction flows will be an added advantage.

Requirements

• Degree in Computer Science or related Technology disciplines with 5 years of proven experience with full SDLC of project development for Java application.
• Strong skills in Java, server-side Java technologies and Spring framework (including Spring Boot) and solid knowledge of micro-services, REST, web-service, SOA.
• Development experience in technical stack e.g. Linux, Spring Boot, Message Queue (Solace), MySQL, SSL, JSON interface.
• Understand SDLC waterfall and experience with Git, Jenkins, JIRA
• Experience in payment systems and cryptography algorithms is an advantage.
• A proactive team player who thrives in a dynamic & fast paced environment, able to work in a team or individually with little supervision.