
under one house, with each of its brands working together toward one mission: To help Indians lead more fulfilling lives surrounded by wellness and grace.
The founders of Mosaic, Revant and Dhyanesh have more than a decade of experience building,advising and investing in consumer brands. This has allowed them to understand the Indian consumer in a level of detail about their health, habits, and more.
Role
As the lead for the frontend development team at Mosaic, you will be the sole owner of the
entire FE development cycle for our consumer facing web products in ReactJS. Also, you will
be responsible for shaping up the entire system for scale and collaborating intensively with the backend and design teams to create the best consumer experiences. You would also need to control the mobile app development lifecycle on ReactNative.
Responsibilities
- Overlook development of all user-facing products in React
- Build reusable components and front-end libraries for future use
- Translate designs and wireframes into high quality code
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Use Server Side Rendering when applicable
- Enhance SEO, Analytics and overall frontend architecture for better performance
Requirements
- 4+ years of experience building frontend for consumer facing products
- 2+ years on ReactJS for consumer facing products
- 1+ years of Team Lead/Management experience
- Thorough understanding of architecting the frontend system with Server Side Rendering
- Good foundation in design and a knack for designing interactions and elegant interfaces
- Has led a mobile development effort on ReactNative
- Understands app development cycle
- Experience with NodeJS for Server Side Rendering/coordinating with the backend team
for API requirements
- Must come up with caching solutions where required to speed up the website load speed
and improve customer experience

Similar jobs
· 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).
- Strong proficiency in React Native and JavaScript (ES6+).
- Experience with Redux, Context API, or other state management tools.
- Familiarity with TypeScript and strong understanding of mobile app architecture.
- Knowledge of native build tools like Xcode and Android Studio.
- Experience with RESTful APIs and third-party libraries.
- Familiarity with GraphQL is a plus.
- Hands-on experience in implementing pixel-perfect designs and animations.
- Proficiency in using libraries like React Navigation, NativeBase, or Material-UI.
- Experience with testing libraries like Jest, Detox, or Appium.
- Strong debugging skills using tools like Chrome DevTools, Flipper, or similar.
- Experience deploying apps to the App Store and Google Play Store, including managing certificates and provisioning profiles
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Maintain and write clean code to ensure the product is of the highest quality.
Key aspects of this role:
• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly-responsive user interface components using React
concepts.
• Writing application interface codes using JavaScript following React.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates.
To be the right fit, you'll need:
• Minimum 4+ years relevant experience in application development and React JS.
• Knowledge of React hooks such that use Context, use Reducer, use Effect.
• Knowledge of React props and state management (both functional and class component)
• Strong understanding of Error boundary concept of react.
• Work experience with any react based UI library or Redux is preferable
• Experience in building cross-browser layouts with CSS and HTML
- 2-5 years of experience developing web applications with modern JavaScript programming frameworks, tooling, and libraries.
- Experience working with Angular or React.js JavaScript Framework.
- Expert knowledge of JavaScript, CSS, HTML and related web technologies.
- Expert knowledge of modern JavaScript and tooling (e.g., Angular, React, Redux, Node).
- Experience with API integration and development.
- Experience developing reusable components.
- Proven experience in understanding complex user needs with multiple stakeholders and providing practical solutions that can work in production.
- Experience working on mobile apps is a plus.
Frontend Developer.
Experience: 3 - 5 years
Skills: React , UI Development, JavaScript, HTML5, CSS , J Query, JSON, Bootstrap, Typescript,
Optional: jasmine, karma
Job Description:
- Responsible to develop web applications using React.
- Write and maintain the front-end code of web applications & To work in UI development.
- Experience in Responsive / Material UI Development.
Process Exposure:
- Able to interact with the team and understand functional requirements and create design documents for new features.
- Exposure to bug fixing, maintenance, continuous integration releases.
- Participate in sprint planning and story elaboration sessions.
- Candidate should be able to work independently in an Agile project.
- Experience with Test-Driven Development, Integration testing and Agile processes.
- At least 2+ years of product development experience with expertise in designing and implementing high-performance web applications
- You must be proficient in Problem Solving and Data structures since you got to find the best way of handling a huge set of data.
- Strong hands-on experience in developing web applications using JavaScript
- Strong experience and knowledge in single-page frameworks like ReactJS/Angular/VueJs/other frameworks and ability to design the architecture of single-page applications.
- Strong hands-on experience with JAVASCRIPT, OOPS Concepts, Single page applications, REACTJS, D3, NodeJS, etc
- Build tools such as grunt, gulp, web pack.
- Exceptional debugging skills and knowledge on browser developer tools
- Familiar with RESTful APIs to connect applications to back-end services
- Familiar with optimization techniques (both in file weight and perceived/actual processing speed), debugging techniques, dynamic content retrieval, state management e.g: (Redux), cross-browser support.
- Experience in optimizing the application for performance and scalability using CDN, caching, etc
- Deep experience developing modular, object-oriented JavaScript Strong command of the HTTP protocol and the latest web standards
- Knowledge on Node server, Socket connections and mechanisms to handle real-time async data would be a plus.
- Very Good understanding of Agile/Scrum methodologies
- Very strong full stack experience with familiarity in serving technologies such as HTTP, CDN, proxies and caching
- Working experience with distributed teams and leading them is a plus
- Strong hands-on on writing test cases and documenting UI component.










