

few products that they can use on the internet. One big need is that of sharing thoughts. Twitter serves this need globally through a micro-blogging platform. However most of the Tweets are in English and the vernacular Indian feels out of place on it. To solve that problem, we started this company.
It is is a micro-blogging platform in Indian languages. It is an app built in India, for Indians, to share their thoughts and opinions on any topic in their mother tongue using Audio/Video/Text.It gives a voice to Indians and enables the “Best of India” to share their thoughts with the “Rest of India”. It provides a personalized feed to users by letting people select the people they want to follow. The user is then shown content from these people. Some of the top minds of India are invited on Koo to share their thoughts and opinions on various topics. Users can follow such personalities and follow what they are talking about, and share their opinions too.
It is a Series A venture funded company. It has raised $6.5 million from stellar investors like Accel Partners, Shunwei Capital, Kalaari Capital, 500startups and Blume Venture Partners.
Founding Team consists of veteran internet entrepreneurs - Aprameya Radhakrishna (CEO, Taxiforsure) and Mayank Bidawatka (Co-founder, Goodbox & Coreteam, redBus).
Technology skill sets required for a matching profile
Work Experience between 3 to 7 years in web development with desire to work in fast paced startups.
● Should be capable of handling a couple of high traffic websites without much of a guidance. Good at debugging and solving cross browser issues.
● Must have experience with Express, ReactJs, Redux, Webpack etc. First hand knowledge of building PWA is preferred.
● Must understand how to optimize web page performance for SEO and snappy user experience.Must have used tools like light-house etc.
● Must be adept in using REST APIs and defining best suited contracts and schema for interacting with them.
● Knowledge of building isomorphic (with some parts of the page as server side rendered) web applications
● Desire to work in fast paced startups

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About the Role
We are looking for a Front-End JavaScript Developer who has a strong grasp of core JavaScript and fundamental computer science principles. This role is ideal for someone who enjoys solving complex problems, can quickly adapt to new technologies, and is comfortable reading and implementing solutions from technical documentation.
As part of our team, you will develop high-quality, efficient, and scalable front-end solutions while working closely with designers and back-end engineers. A deep understanding of JavaScript (not just frameworks) is key for this role.
Responsibilities
- Develop and maintain front-end applications using vanilla JavaScript and modern ES6+ features.
- Work with HTML, CSS, and JavaScript to build interactive, responsive, and high-performance user interfaces.
- Read and interpret technical documentation to integrate APIs, optimize performance, and implement new functionalities.
- Debug and troubleshoot front-end issues efficiently.
- Collaborate with back-end developers and designers to ensure seamless integration of UI/UX.
- Write clean, maintainable, and well-documented code following best practices.
- Stay up-to-date with advancements in web development and emerging technologies
Requirements
- Strong understanding of JavaScript (ES6+), closures, event loops, async/await, fetch api and functional programming concepts.
- Solid grasp of computer science fundamentals, including data structures, algorithms, and object-oriented programming (OOP).
- Experience with HTML5, CSS3, and modern styling techniques (e.g., Flexbox, Grid, SASS, Tailwind).
- Ability to read and implement features based on technical documentation and specifications.
- Proficiency in working with RESTful APIs and handling JSON data.
- Familiarity with DOM manipulation, performance optimization, and browser debugging tools.
- Experience with Git/GitHub and version control workflows.
- Strong problem-solving skills and ability to learn quickly in a fast-paced environment.
Nice to Have (Bonus Skills)
- Experience with WebAssembly (WASM), WebSockets, or Service Workers.
- Familiarity with TypeScript.
- Understanding of compilers, interpreters, and low-level programming concepts.
- Experience with build tools like Webpack, Rollup, or Vite.
- Knowledge of testing frameworks like Jest or Mocha.
- Exposure to performance profiling and memory management in JavaScript.
Why Join Us?
- Work on challenging and impactful projects that require deep problem-solving.
- Opportunity to learn and grow in a fast-paced, tech-driven environment.
- A team that values engineering excellence, core computer science, and continuous learning.
- Competitive salary, benefits, and a culture that fosters innovation.
If you re passionate about JavaScript and love solving technical challenges, we’d love to hear from you!

Software Solution Engineer – UI Development
(1-3 yrs of experience)
• 1-3 years of software development experience in Web Development.
• Willing to learn new technologies and frameworks.
• Demonstrable knowledge of web technologies including HTML, CSS, JavaScript,
AJAX,Bootstrap,React JS, jQuery etc.
• Self-starter with strong self-management skills.
• Ability to organize and manage multiple priorities. Basic knowledge of programming
languages.
• A team player with high level of dedication.
• Work closely with Project Managers and other members of the Development Team to both develop
detailed specification documents with clear project deliverables and timelines, and to ensure
timely completion of deliverables.
• Attend client meetings during the sales process and during development.
• Work with clients and Project Managers to build and refine graphic designs for websites.
• Convert raw images and layouts from a graphic designer into CSS/XHTML themes.
• Determine appropriate architecture, and other technical solutions, and make relevant recommendations
to clients.
• Communicate to the Project Manager with efficiency and accuracy any progress and/or delays.
• Engage in outside-the-box thinking to provide high value-of-service to clients. Alert colleagues to
emerging technologies or applications and the opportunities to integrate them into operations
and activities.
• Be actively involved in and contribute regularly to the development community of the CMS of your choice.
Develop innovative, reusable Web-based tools for activism and community building.

Key Skills/ Knowledge:
- Experience with React or any JS frontend frameworks
- Experience with, HTML5, CSS3 and CSS pre-processor like SASS or LESS.
- Proficient in JavaScript, including DOM manipulation
- Understanding of React and its core principles
- Experience with React workflows (such as Redux)
- Familiarity with the newer specification of JavaScript (ES6 or newer)
- Experience working with JSON
- Experience building accessibility compliant web applications
- Familiarity with code versioning tools (git)
- Familiarity with browser testing and debugging
- Familiarity with unit testing
- Experience working in an Agile environment
- Ability to understand business requirements and translate them into technical requirements

- Can architect UI systems and has a well-honed understanding of the strengths and weaknesses of different frameworks.
- Cherishes the craft of an experience getting to perfect pixels, creating animations with just the right springs, investing in loading performance.
- Is familiar with React, Node. JS, NoSQL databases like Firebase, and AWS.
- Collaborates actively with designers, product managers, product scientists, and other engineers.

1. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. |
2. Experience with Core web fundamentals: HTML, JavaScript, and CSS like Sass or LESS |
3. Thorough understanding of ReactJS and its core principles. |
4. Experience with popular ReactJS state management such as Redux or Flux |
5. Familiarity with newer specifications of EcmaScript (ES6+) |
6. Familiarity with RESTful APIs consumption |
7. Experience with common front-end development tools such as Babel, Webpack, NPM, etc. |
8. Ability to understand business requirements and translate them into technical requirements |
9. Familiarity with code versioning tools such as GitLab, Bitbucket |
10. Must be passionate about writing clean, efficient, and maintainable code |
11. Self-starter with the ability to cope with sharp learning curves. |
12. Excellent teamwork skills, |
13. Good Communication skill |


- Overall 4 years development experience with 2+ years of professional experience working with React Native
- An understanding of React Native best practices and a commitment to following them.
- Experience with popular React Native workflows such as Redux and ESLint, Jest, Enzyme.
- Experience with Agile development, scrum.

Deep understanding of React.js and its fundamentals, ideally including modern features like Saga/Thunk/Hooks with 2-4 years of experience in the relevant field.
Excellent understanding of Javascript including the OOP concept and how shadow DOM and DOM work
Excellent understanding of HTML & CSS
Experience with widely used React.js state managers like ContextAPI, Redux
Knowing modern ES6 and later
Knowledge of RESTful APIs
Familiarity with modern front-end build pipelines and tools like Webpack, Babel, NPM, etc.
Knowledge of the overall browser rendering behavior and measuring and optimizing performance
Strong hands-on experience with source code management systems like GIT, SVN
Responsibilities:
Ensure new feature requests are implemented in the front-end part integrating with Web APIs.
Use React best practices to create reusable and structured components.
Confident in using UI/UX designs or wireframes to create the respective code and the application
Write components that perform well in all circumstances

- Strong experience in building new features into one of the most advanced interfaces on the web
- Take a lead role with other engineers and designers to deliver strong customer-focused experiences
- Keep our product up to date with the latest frontend technologies such as React
- Practice disciplined software engineering (e.g. automated testing, code reviews, and writing beautiful, pragmatic code)
- Actively contribute to team and company standards
- Strong JavaScript development skills, understanding of new concepts, and proficiency in React, Angular, or other modern JS frameworks
- Extensive experience developing large-scale application software
- Have full knowledge of new HTML5 constructs, and CSS3
- Have experience with Single Page Application development
- Keep up to date with the newest technologies
- Develop features and create fulfilling user experiences
- A strong understanding of, and practical experience with, web application development
- A sincere commitment to crafting readable and reliable code
- 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.
- Bachelor’s degree in Computer Science, Information Technology, or a similar field.
- 2 Years of experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
- Proficient understanding of code versioning tools, such as Git
Mandate Skills : Javascript, Angular2/4, HTML5, CSS3
Experience need : 2-4 Years
Relevant Experience : At-least Around 2 years into Javascript,Angular 2/4.
Hiring Mode : Permanent
Notice period : Immediate /30 Days
Requirements :
- Thorough understanding of Angular 2 and above, and its core principles
- Should have excellent front-end UI development skills.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Should be proficient in HTML, CSS and Bootstrap.
- Building reusable components and front-end libraries for future use
- Translating designs and wire-frames into high-quality code
- Experience with web-pack
- Should have experience on working within an Agile environment and with Continuous Delivery practices.
- Should be good at communicating and have a passion for working hand in hand with designers.
- Proficient understanding of Git and related services like GitHub, BitBucket etc.

