- We are looking for techies with a passion to develop high-performance web applications.
- If you are interested and looking to build scalable and high-performance apps, then join us. We are building web app based on React with server-side rendering. For mobile, we are building PWA.
Roles & Responsibilities :
1. Build scalable web applications using ReactJS, Redux and other related libraries.
2. Integrating back-end API's with front-end.
3. Build reusable code and libraries for future use.
4. Optimize application performance and reduce page loading speed.
5. Solid experience in architecting and implementing highly scalable front-ends in modern technologies such as React or Vue.
6. Gathering requirements from design and technical staff and client on web development needs/Defining effective solutions for business and process problems.

About Purple Style Labs Private Limited
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Job Title : Frontend Developer (React + Three.js)
Location : Noida
Experience : 2+ Years
Job Description :
We are looking for a Frontend Developer with strong skills in React.js and Three.js to build interactive, high-performance 3D web applications. The role involves creating smooth 3D experiences, optimizing performance, and collaborating with cross-functional teams.
Key Responsibilities :
- Develop responsive and dynamic UIs with React.js/Next.js.
- Implement and optimize 3D visualizations using Three.js/WebGL.
- Manage 3D assets (GLTF/GLB, textures, compression).
- Ensure performance optimization, cross-browser compatibility, and scalability.
- Collaborate with designers and backend teams to deliver seamless experiences.
Required Skills :
- JavaScript/TypeScript, React.js/Next.js
- Three.js / WebGL for 3D rendering & interactions
- State management (Redux, Zustand, Context API)
- 3D asset pipeline (GLTF/GLB, textures, compression tools)
- Performance optimization (profiling, draw calls, FPS tuning)
- API integration (REST/GraphQL)
- Version control (Git)
Responsibilities:
• Develop and maintain mobile applications using React Native.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
• Identify and correct bottlenecks and fix bugs.
• Help maintain code quality, organization, and automation.
• Write clean, maintainable, and scalable code.
• Participate in code reviews to ensure code quality and share knowledge with the team.
• Stay updated with the latest industry trends and technologies.
Requirements:
• Strong proficiency in JavaScript and familiarity with ES6+ syntax.
• Experience with Redux or other state management libraries.
• Familiarity with RESTful APIs to connect mobile applications to back-end services.
• Knowledge of mobile app architecture and design patterns.
• Experience with third-party libraries and APIs.
• Understanding of mobile development best practices.
• Ability to write well-documented, clean code.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.
Leena AI has been founded by IIT Delhi alumnus and senior industry veterans with the mantra to "Improve Employee Experience through Intelligent Conversations”.
Leena AI provides an end to end Chatbot to better the employee/candidate experience & product longevity using our capabilities in HR Chatbot. This solution ensures a reduction in query handling time for HR & improves the employee experience. Apart from this we also have out of the box modules which take care of real-time status updates for employee queries about Workday, improve employee on-boarding and exit process along with simplifying employee-manager's self-service process in the organization. We enable out of the box integration with Workday, Microsoft AD, Kronos and SharePoint for providing a superior experience to employees over the Chatbot.
At Leena AI, We are looking for a passionate Lead Front-End Developer who is proficient with React.js. You will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality products are important.
Responsibilities:
As a Lead Front-End Developer you would be responsible for:
- Leading a team, Collaborate with team to deploy and continuously improve our solutions
- Developing new user-facing features using React.js.
- Building reusable components and front-end libraries for future use.
- Translating designs and wireframes into high quality and pixel perfect code.
- Optimising components for maximum performance across a vast array of web-capable devices and browsers.
- And everything that a coder does.
- Strong proficiency in JavaScript, including DOM manipulation and theJavaScript object model.
- Thorough understanding of React.js and Redux its core principles.
- Familiarity with newer specifications of ECMA Script is a plus.
- Familiarity with RESTful APIs.Knowledge of modern authorisation mechanisms, such as JSON Web Token.
- Familiarity with modern front-end build pipelines and tools.
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements.
- Lead a product (would be a plus)
- Have managed a team before
Responsibilities
• 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.
• Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
• Maintain code and write automated tests to ensure the product is of the highest quality.
Skills
• Firm grasp of the JavaScript (and TypeScript) language and its nuances, including ES6+ syntax
• Knowledge of (functional or object-oriented) programming
• Ability to write well-documented, clean Javascript code
• Rock solid at working with third-party dependencies and debugging dependency conflicts
• Familiarity with native build tools, like XCode, Gradle (Android Studio, IntelliJ)
• Understanding of REST APIs, the document request model, and offline storage
Job Type: Full-time
Salary Offer: 3L PA - 5.4L PA
Job Location: Remote for 6-12 months due to the pandemic, then Mumbai, Maharashtra
Required experience:
1-2 years and above experience in developing frontend UIs using HTML5, CSS, Javascript with ReactJS. Candidate must have experience with data binding and state management (Redux/MobX)
Key Skills required :
1. Proficiency in HTML5 development
2. Proficiency in CSS Frameworks like Bootstrap ⅘
3. Strong understanding of Javascript
4. Hands on experience in building and implementing UIs in ReactJs including experience in building components, observables, state management and data binding
5. Strong expertise in building Responsive Websites
6. Experience fixing performance issues using tools like GTMetrix and Pagespeed Insights
7. Working experience in maintaining code versioning by committing to Git repositories
KRAs includes :
1. Understanding the scope of work and arriving at timelines
2. Frontend UI development using Reactjs, HTML5, Javascript and CSS
3. Implementing media queries and following Responsive Web Design principles for responsive websites
4. Implementing state management, databinding and mocking APIs
5. Unit testing prepared web applications and HTML pages
6. Coordinating with the testers to resolve any bugs
7. Reporting on daily and weekly progress
8. Optimization and performance tuning of code
You will be responsible to ensure seamless user interaction with our products and aim to enhance this on a daily basis. Our tightly knit engineering team works on a wide range of cutting-edge products. If you know what it takes to build magical user experiences and consider performance to be the key feature of your app, this is definitely the right place for you.
POSITION RESPONSIBILITIES:
-
→ Developing new user facing features using ReactJS
-
→ Building reusable components and frontend libraries for future use
-
→ Translating UI/UX design wireframes into high quality code that will produce visual elements
of the application
-
→ Optimizing components for maximum performance across a vast array of web capable
devices and browsers
-
→ Create unit, scenario, integration sanity test etc. if required
-
→ Write documentation for your code
-
→ Understanding the nature of asynchronous programming and its quirks and workarounds
Understanding differences between multiple delivery platforms, such as mobile vs. desktop,
and optimizing output to match the specific platform
-
→ Understanding fundamental design principles behind a scalable application
MUST HAVE:
-
Proficient in HTML, CSS, Javascript (ES6 or above) including DOM manipulation and Object Oriented Javascript
-
Strong command in ReactJS / Redux
-
Knowledge of different performance optimisation techniques
-
Knowledge of handling asynchronous behaviour using Redux Saga/Thunk
-
Knowledge of using RESTful APIs with error handling
-
Fundamental knowledge of a better user experience
-
Familiarity with code versioning tools GIT
-
Good problem-solving skills
GOOD TO HAVE:
-
Familiarity with different design patterns and functional programming
-
Experience in any open source project
-
Experience with any CSS frameworks such as Semantic UI/Bootstrap/Material UI










