Full-stack Engineer

OPUS IT SERVICES PTE LTD; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

A leading IT services company in Singapore is seeking a Full-stack Engineer to take ownership of end-to-end application development. The ideal candidate will have strong background in both frontend and backend technologies, experience with cloud platforms, and a focus on optimizing deployment strategies. This position requires collaboration with DevOps and QA teams for seamless application performance and security.

Qualifications

• Experience with modern frontend frameworks such as React.js, Vue.js, Angular.
• Proficiency in backend technologies like Node.js, Python, or Ruby on Rails.
• Strong understanding of CI/CD and cloud platforms.

Responsibilities

• Take full ownership of end-to-end application development.
• Design, develop and maintain responsive web applications.
• Optimize full-stack CI/CD deployment strategies.

Skills

Full stack development

JavaScript and TypeScript

Node.js

Experience with Git and modern branching workflows

APIs design principles

CI/CD pipelines

Application performance monitoring tools

Education

Degree or Diploma in Computer Science or related disciplines

Tools

Git

React.js

Node.js

AWS

Terraform

Job description

Overview

Full-stack Engineer

Responsibilities

• 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.

Qualifications

• 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).