
Frontend Engineer
React, TypeScript & Production Web Applications
š Mumbai (On-site) | Full-time | 3-5 years
About the Role:
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.
Responsibilities:
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.
Requirements:
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

About Unico Connect Private Limited
About
Building quality products are a challenge !
Taking up challenges is our way of upscaling our performance.
Unico Connect is a digital product development company based in Mumbai, India, that comprises of a team of young enthusiastic nerds who thrive on great ideas and exciting projects that look to bring innovative changes in the world. We ideate, create and execute exceptional digital products that revolutionizes the face of modern business.
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