Full Time Backend Engineer (Public Sector) Jobs, in Xtremax Pte. Ltd. Singapore - Maukerja

At Xtremax, our Backend Engineers play an important role in building the systems that power our digital products. You’ll be working with modern tools, cloud technologies, and good software practices to deliver scalable, secure, and reliable solutions. We believe in collaboration, continuous learning, and writing clean, maintainable code. Candidates with public sector experience are preferred, as this role supports IT projects for government agencies.

We are looking for a Backend-Focused Full-Stack Engineer to design and develop the core backend services for cloud-based digital platform. The role will focus on APIs, database, business logic and workflows, audit logging, reporting data and integration readiness. This role will work closely with the Technical Lead, Frontend Engineer, QA Automation Engineer and Infrastructure Team to deliver secure and reliable backend services that support digital platform.

Responsibility:

• Backend Development: Design, develop and maintain backend services using Node.js and TypeScript.
• Cloud Application Deployment: Develop backend services that can be deployed into AWS environments using approved deployment patterns.
• Workflow Systems: Design and develop booking, approval, case management, event management, CRM or other workflow-heavy systems.
• CI/CD Support: Contribute to build scripts, deployment configuration, database migration automation and pipeline troubleshooting.
• Security Remediation: Resolve findings from SAST, dependency scanning, secret scanning, DAST and VAPT reports.

• Experience: At least 3-4 years of professional software development experience.
• Backend: Strong experience with Node.js, TypeScript, Express.js or NestJS.
• Database: Strong experience with PostgreSQL, SQL, relational modelling, transactions and query optimisation.
• API: Experience designing and implementing REST APIs.
• Authentication & Authorisation: Familiarity with OAuth2/OIDC, JWT/session handling, RBAC and secure API access.
• AWS Application Awareness: Familiarity with AWS-hosted applications and services such as Lambda, API Gateway, RDS/Aurora PostgreSQL, S3, CloudWatch and Secrets Manager.
• DevOps: Familiarity with Git, CI/CD pipelines, Docker basics, environment variables and deployment troubleshooting.
• Security: Understanding of secure coding, OWASP Top 10, input validation, API security, dependency management and vulnerability remediation.
• Testing: Experience with unit testing, API testing and integration testing.

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