Java Full Stack Engineer
First seen by Alion on Oct 12, 2026.
We are looking for a JavaFull-stack Engineer based in Singapore to develop, maintain and supportenterprise applications in a highly regulated environment.
The role requires strong Javabackend skills, working knowledge of React, hands-on deployment experience, andthe ability to troubleshoot production issues and participate in technicaldiscussions with clients.
Responsibilities• Develop and maintain backend services andRESTful APIs using Java and Spring Boot.
• Develop and troubleshoot database queries andintegrations to support application functionality and performance.
• Maintain and enhance React components,including integration with backend APIs.
• Support application deployment andtroubleshooting using GitLab CI/CD, Docker and Kubernetes.
• Configure, integrate and troubleshoot APIgateways and reverse proxies.
• Investigate production issues, analyseapplication logs, identify root causes and implement fixes.
• Remediate vulnerabilities in application codeand dependencies, and verify that the implemented fixes resolve the identifiedissues.
• Participate in and, where required, leadtechnical discussions with clients to clarify requirements, explain issues andrecommend solutions.
RequiredSkills and Experience• Strong hands-on experience with Java, SpringBoot and RESTful API development.
• Solid database and SQL experience, includingdata integration and troubleshooting.
• Working knowledge of React and frontendintegration with backend services.
• Hands-on experience with GitLab CI/CD, Dockerand Kubernetes.
• Experience with API gateway and reverse proxytechnologies, such as Nginx.
• Ability to support production issues throughlog investigation, debugging and root cause analysis.
• Experience with application and dependencyvulnerability remediation.
• Good spoken English, with the ability tocommunicate clearly with clients and explain technical concepts effectively.
PreferredExperience• Hands-on experience with Axway API Gateway orsimilar enterprise API management platforms.
• Experience supporting Singapore government orpublic-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.
Skills
Client Facing Skills, Kubernetes, Code Remediation, REST APIs development, Nginx, Root Cause Analysis, Database Support, Backend Integrations, API Gateway, Production Support, Reverse Proxy, Java, SQL Development, React.js, Client Requirements, Application Deployment