Frontend Engineer

React, TypeScript & Production Web Applications

Mumbai (On-site) | Full-time | 3-5 years

Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies. We are hiring a Frontend Engineer who will build production-grade web applications across customer engagements, partnering closely with designers, backend engineers, and AI engineers.

The mandatory requirement for this role is hands-on production experience shipping React applications, with ownership of at least one feature area end to end including state, API integration, and testing. The role is hands-on. Expect to implement complex flows, integrate with backend and AI services, contribute to a shared design system, write tests, and review the work of others. A typical week includes a design handoff review, implementation of a new flow, a code review session, and a working call with a backend engineer on API contracts.

• Production UI development: Build production-grade React UI for customer engagements, including complex forms, dashboards, data-dense views, and AI-driven interactions.
• API integration: Integrate with REST and GraphQL APIs. Handle authentication, streaming responses (Server-Sent Events, WebSockets), retries, and graceful error states.
• State management: Build state architecture using Redux, Zustand, Jotai, or equivalent. Handle async state, optimistic updates, and cross-component coordination.
• Design system contribution: Implement components within an established design system. Maintain token discipline and contribute back to shared components.
• Testing: Write unit, integration, and end-to-end tests using Jest, React Testing Library, and Playwright or Cypress.
• Performance and accessibility: Profile and optimise rendering and bundle size. Apply WCAG 2.1 AA practices in everyday work.
• AI-assisted development: Use Claude, Cursor, and similar tools day to day. Build discipline for reviewing and validating AI-generated code.

• Hands-on production React experience (mandatory). Must have personally shipped at least one feature area end to end in a production React application, owning state, API integration, and testing. POCs and internal tools alone do not qualify.
• 3 to 5 years of professional frontend engineering experience.
• Strong JavaScript, TypeScript, and React. Solid with hooks, context, and modern patterns. Working comfort with Next.js (SSR, SSG, app router).
• State management. Production experience with Redux, Zustand, Jotai, or equivalent.
• CSS and styling. Strong with Tailwind, CSS Modules, or CSS-in-JS. Comfortable building responsive layouts.
• REST and GraphQL. Comfortable consuming both. Working knowledge of streaming responses and async patterns.
• Testing fluency. Jest, React Testing Library, and at least one of Playwright or Cypress.
• Git and CI/CD basics. Comfortable with feature branching, pull requests, and CI-integrated test runs.
• Strong written and spoken English communication.



Nice to have: experience with editor or canvas UIs; Storybook; animation libraries (Framer Motion, GSAP); exposure to AI-driven UI patterns; visual regression testing tools.