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Xtremax

Xtremax is a Singapore-headquartered cloud consulting and digital transformation company that provides custom software development, managed services, and cloud migration solutions. Founded in 2003, the enterprise helps government agencies, multinational corporations, and large organizations build scalable digital infrastructure and cloud-native applications. Operating across Southeast Asia with key offices in Singapore, Indonesia, and Malaysia, it enables clients to streamline IT complexities and optimize their digital operations.

The Full Stack Engineer is responsible for designing, developing, deploying, and maintaining scalable, high-performance, and secure web applications. The role requires expertise in frontend and backend development, cloud technologies, DevOps automation, and application security. Engineers must work in an agile, DevOps-driven environment, ensuring high software quality, security, and maintainability.

Responsibility

  • Take full ownership of end-to-end application development, integrating frontend, backend, and cloud infrastructure.
  • Design, develop, and maintain responsive, accessible, and performant web applications.
  • Implement modern frontend architectures, ensuring reusability, scalability, and security.
  • Develop high-performance backend services and APIs, ensuring reliability, security, and observability.
  • Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
  • Optimize full-stack CI/CD deployment strategies, ensuring seamless and automated releases.
  • Work with DevOps teams to automate infrastructure provisioning, monitoring, and cloud deployments.
  • Ensure full-stack security, including authentication, authorization, API security, and frontend security best practices.
  • Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.
  • Support implementation and sustainable adoption of new tools, systems, and workflows.

Requirements

Full Stack Development:

  • Degree or Diploma in Computer Science, Computer or Electronics Engineering, Information Technology, or related disciplines.
  • Experience with Git and modern branching workflows (GitFlow, trunk-based development).
  • Strong proficiency in both frontend and backend development.

Frontend Technologies:

  • JavaScript and TypeScript.
  • Frontend frameworks such as React.js, Next.js, Vue.js, Angular, or Svelte.
  • Mobile app development using Swift (iOS), Kotlin (Android), or React Native.
  • UI component libraries such as Material-UI, Tailwind CSS, or Bootstrap.
  • Experience with wireframing and prototyping tools (Figma).

Backend Technologies:

  • Node.js, Express.js, NestJS.
  • Ruby on Rails (RoR).
  • Java/Kotlin (Spring Boot).
  • Python (Django, Flask, FastAPI).
  • Golang
  • RESTful APIs, GraphQL, gRPC, and WebSockets for service communication.
  • C# and .NET is a plus.

Observability & Monitoring:

  • Experience implementing application performance monitoring (APM) tools (Datadog, New Relic, Sentry, Prometheus, OpenTelemetry).
  • Knowledge of logging frameworks (ELK Stack, Loki, Fluentd) to track and debug issues across distributed systems.
  • Ability to set up dashboards and alerts for real-time application health monitoring.

B ackend Scalability & API Design:

  • Strong experience in API design principles, including REST, GraphQL, gRPC, and WebSockets.
  • Knowledge of API rate limiting, caching strategies (Redis, Varnish), and performance optimizations.
  • Familiarity with backend service scalability strategies (horizontal scaling, autoscaling, load balancing).

DevOps, Cloud, and Infrastructure:

  • Experience with CI/CD pipelines (GitHub Actions, GitLab CI, ArgoCD, Jenkins).
  • Hands-on experience with cloud platforms (AWS, Azure, GCC, Google Cloud, Cloudflare Workers).
  • Experience with containerization and orchestration (Docker, Kubernetes).
  • Familiarity with Infrastructure as Code (IaC) tools (Terraform, CloudFormation, Pulumi).

Security Best Practices:

  • Strong knowledge of frontend security (CSP, CORS, XSS prevention).
  • Experience with backend security (OAuth, JWT, API rate limiting, encryption).
  • Familiarity with cloud security (IAM, Secrets Management, OWASP Top 10).

Software Quality & Testing:

  • Experience with unit and integration testing (Jest, Cypress, Playwright, Pact).
  • Backend testing using Postman, Supertest, contract testing.

Bonus Experience (Added Advantage):

  • Experience professional work with LLM / AI
  • Experience with low-code platforms (OutSystems, Mendix, Appian).
  • Familiarity with micro-frontends and modular frontend architectures.
  • Experience working with edge computing (Cloudflare Workers, Lambda@Edge).

Benefits

By submitting your resume/CV, you consent and agree to allow the information provided to be used and processed by or on behalf of Xtremax Pte Ltd for purposes related to your registration of interest in current or future employment with us and for the processing of your application for employment.

You also represent to us that you have obtained the consent of your referees when you disclose to us their personal data for the purpose of conducting reference checks.

The personal data held by us relating to your application will be kept strictly confidential and in accordance with the PDPA. You may also refer to our Privacy Policy for more details here:

We regret to inform you that should you not consent to providing the necessary data required for us to process your application, your application will be considered void.

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