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Full-stack Engineer

Full-stack Engineer

OPUS IT SERVICES PTE LTDIslandwide, SG
5 days ago
Job description

Roles & Responsibilities

Full-stack Engineer

Responsibility

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.

  • 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, APR security and frontend security best practices.
  • Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.
  • Experience and skills needed

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

    • 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.

  • Backend 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, Google Cloud, Cloudflare Workers).
  • Familiarity with infrastructure as Code (IaC) tools (Terraform, Cloud Formation, Pulumi).

    • Security Best Practices :

  • Strong knowledge of frontend security (CSP, CORS, XSS prevention).
  • Experience with backend security (OAuth, JWT, API rate limiting, encryption)

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

    • Tell employers what skills you have

    Git

    Azure

    REST

    Kotlin

    TypeScript

    Agile

    Application Development

    JavaScript

    UI

    Information Technology

    Ruby

    Python

    React Native

    Angular

    Web Applications

    API

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