3+ years | Kolkata | Full-time
Collatzinc is hiring a React JS Developer to build clean, scalable, production-ready frontend apps.
Key Responsibilities
- Build and maintain React-based web applications
- Implement frontend logic, API integrations, state management and reusable modules
- Work with Redux, RTK Query and WebSocket-based features where needed
- Create reusable components and maintain clean frontend architecture
- Collaborate with backend devs, designers, QA, and project leads
- Debug, optimize, and improve existing frontend code
- Use AI-assisted tools responsibly for coding, debugging, refactoring, and documentation
Required Skills
- 3+ years frontend development
- Strong React JS, JavaScript, HTML5, CSS3
- Experience with Redux, Redux Toolkit / RTK Query and WebSocket-based integrations
- Experience with TypeScript
- React Hooks, routing, component-based architecture, state management
- Tailwind CSS, Material UI, Bootstrap or similar libraries
- REST API integration
- Git and standard dev workflows
- Responsive design and cross-browser compatibility
- Clean, reusable, maintainable code
- Comfort with AI-assisted dev tools and writing clear prompts for AI coding
Good to Have
- Python (AI features, automation, backend-adjacent tasks)
- Testing tools: Jest, React Testing Library, or Cypress
- Experience with dashboards, admin panels, SaaS, or business apps
- Ability to critically review and validate AI-generated code
Benefits:
- Paid sick time
- Paid time off
- Provident Fund
Application Question(s):
- Current CTC?
- Expected CTC?
- Notice Period?
Experience:
- ReactJS: 3 years (Required)
Work Location: In person
