React.js Developer

Frontend Engineer

React, TypeScript & Production Web Applications

📍 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

·      7+ years of professional experience in front-end development.

·      5+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)

·      3+ Years Exp as Lead

·      Strong understanding of JavaScript (ES6+), HTML5, and CSS3.

·      Experience with RESTful APIs, GraphQL, and WebSocket integration.

·      Proficiency in modern build tools (Webpack, Vite, Babel, etc.).

·      Expertise in state management libraries (Redux, MobX) and React Query.

·      Solid understanding of UI/UX principles and responsive design.

·      Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).

Familiarity with modern CI/CD pipelines and version control tools (Git).

What you’ll be doing

• Lead the development of our platform’s front end.
• Work with the product and design teams along with the founders to build new product features from start to finish: through conception, research, implementation, and maintenance.
• Work closely with founders and internal/external stakeholders to build products, tools, and services from scratch and deliver high-quality software solutions.
• You'll leverage your frontend knowledge to help improve performance and reliability, and polish existing features.
• Share your technical expertise to help the team make thoughtful and scalable design decisions and identify performance bottlenecks to troubleshoot quickly.
• Manage product development priorities, deadlines, and deliverables.
• Ensure high-performant and responsive web applications and websites.

Skills & Qualities we’re looking for

• Bachelor’s/Master’s degree in Computer Science (or equivalent experience).
• 2-4 years of experience as a frontend developer (rare exceptions for highly skilled developers) at a fast-paced, preferably early / growth stage start-up.
• You're familiar with HTML, CSS, Javascript, and a React-like UI framework.
• Knowledge of codebases and version control systems (Git).
• You have experience debugging performance issues with UI in modern browsers across multiple platforms.
• Well-versed with SQL database design & RDBMS concepts.
• Strong arithmetic reasoning, logical and analytical thinking skills.
• Strong knowledge of code quality maintenance and performance analysis.

Frontend Developer

We are inspiring the next generation of young innovators and entrepreneurs in India. We're an education startup co-founded by a Computer Science grad from MIT/Harvard and the former CEO of Apple India. We started out as code school, offering creative tech boot-camps on topics like Drone Programming, Android App Development, Game Programming, Full-Stack Web Development to k-12 students across the nation, and now we're building web and mobile products to deliver powerful learning experiences to students online, at scale.

Job Description

We are looking for a Front End developer who is excellent with JavaScript (React.js + Redux). Some proficiency with Node.js preferred as you’ll be hooking up your front-ends to APIs and occasionally writing your own.

Your primary focus will be to develop the UI/UX for highly interactive / social / multiplayer learning platform, across the Student Product, Parent Product, Teacher Product, Virtual Classroom, and more.

Responsibilities

• Translating designs and wireframes into high quality React code
• Styling re-usable components with pixel perfection and mobile responsiveness
• Structuring state and information flow across your front-end app using Redux
• Optimizing your code for SEO and maximum performance across a vast array of web-capable devices and browsers

Skills / Required Experience

• 3+ years of hands-on experience with React.js
• 2+ years of hands-on experience with Redux
• Bonus: past experience with Socket.io and WebRTC
• Writing and consuming REST APIs with Node.js 
• A knack for benchmarking and optimization
• Familiarity with modern front-end build pipelines and tools

1. We are looking for champions for scalable web application development with experience in

1. Experience in Website Development.

2. To create web pages through HTML and CSS in alignment with PSD design and themify them. In other words, combine interface design concepts with digital design.

3. The candidate should have hands-on experience in Adobe Photoshop and Adobe creative suite. And should be proficient enough in designing the UI of websites with great user experience.

4. Ability to translate business requirements into system design and perform as per the needs.Capable enough to analyze the user’s choice over graphics and animation needs.

5. Conduct testing of completed applications to assess user experience.

6. Use coding to develop the aesthetics implemented within a website, from the layout menus and drop-down options to colours and fonts.

7. Ensuring all interactions are intuitive and convenient for the audience.

8. Collaborate with back-end web developers and programmers to improve usability.

9. Ensure that the website is optimized for various devices.

10. Coordinate with the testing team and work closely with them and implement the changes as asked by them.

11. The candidate must be ready to take responsibility, ownership of code, be independent, and at the same time is open to learning something new.

12. Basic knowledge of PHP.