Java Full-stack Engineer

Job Summary We are looking for a Java Full-stack Engineer based in Singapore to develop, maintain and support enterprise applications in a highly regulated environment. The role requires strong Java backend skills, working knowledge of React, hands-on deployment experience, and the ability to troubleshoot production issues and participate in technical discussions with clients. Responsibilities • Develop and maintain backend services and RESTful APIs using Java and Spring Boot. • Develop and troubleshoot database queries and integrations to support application functionality and performance. • Maintain and enhance React components, including integration with backend APIs. • Support application deployment and troubleshooting using GitLab CI/CD, Docker and Kubernetes. • Configure, integrate and troubleshoot API gateways and reverse proxies. • Investigate production issues, analyse application logs, identify root causes and implement fixes. • Remediate vulnerabilities in application code and dependencies, and verify that the implemented fixes resolve the identified issues. • Participate in and, where required, lead technical discussions with clients to clarify requirements, explain issues and recommend solutions. Required Skills and Experience • Strong hands-on experience with Java, Spring Boot and RESTful API development. • Solid database and SQL experience, including data integration and troubleshooting. • Working knowledge of React and frontend integration with backend services. • Hands-on experience with GitLab CI/CD, Docker and Kubernetes. • Experience with API gateway and reverse proxy technologies, such as Nginx. • Ability to support production issues through log investigation, debugging and root cause analysis. • Experience with application and dependency vulnerability remediation. • Good spoken English, with the ability to communicate clearly with clients and explain technical concepts effectively. Preferred Experience • Hands-on experience with Axway API Gateway or similar enterprise API management platforms. • Experience supporting Singapore government or public-sector projects, or other highly regulated environments. • Exposure to Government Commercial Cloud (GCC), Government Data Centre (GDC) and/or OpenShift Container Platform (OCP) environments is a strong advantage.