
What will you do?
• Developing new user-facing features using React & Redux
• Build modular layouts, reusable code and libraries for future use
• Refactor, optimize and improve the existing code base for maintenance and scale
• Use test-driven development and acceptance tests to ensure feature quality
• Design and implementation of low-latency, high-availability, and performant applications
• Optimize application for maximum speed and scalability
• Work closely with back-end developers to make sure the user experience is implemented as it was conceived
Skills Required
• Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel
• Complete understanding of ReactJS and its main fundamentals like JSX, Virtual DOM, component lifecycle, etc.
In-depth understanding of redux
• Understanding of RESTful APIs, HTML/CSS, ES6 (variables and scoping, array methods), code versioning tools like GIT, and NPM
• Good understanding of Promises, Async/ Await and Callbacks
• Should have good knowledge of Socket
• Understanding the nature of asynchronous programming and its quirks and workarounds
• In-depth knowledge of object-oriented programming
• Understanding of JavaScript Development on the server side using NodeJS and Express would be a plus
• Knowledge of ES6 would be a plus
• Should have good hands-on experience on MongoDB, designing optimized database structures using MongoDB and writing optimized queries for better performance

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About CK-12 Foundation:
CK-12 is on the lookout for talented, creative, and dedicated people to join our mission to provide great education to students around the world. We are looking for candidates to join our Bangalore office.
We have a strong education platform that has served 265+ million users, answered 2.33+ billion questions, and created 290,000+ customized FlexBooks. We are on an exciting journey to build an AI-powered Student Tutor and Teacher Assistant, shaping the next generation of learning platforms.
CK-12’s mission is to provide free access to open-source content and technology tools that empower students and teachers to experiment with different learning styles, resources, and levels of competence.
To achieve this ambitious vision, we are challenging the traditional education model and transforming it through technology. CK-12 is a non-profit organization, enabling us to experiment with bold ideas and truly focus on doing what’s right. We are backed by Vinod Khosla, a renowned technology venture capitalist.
At CK-12, you’ll work in a dynamic, entrepreneurial, innovative, and non-bureaucratic environment, alongside a small group of passionate individuals determined to disrupt education as we know it.
Technology is key to scaling education, and we deeply believe in it. Join us to build impactful solutions on our cloud-based (AWS), AI-first platform, delivering rich and interactive learning experiences.
If our mission, people, and technologies excite you—and you’re someone who challenges the status quo (no order-takers!)—we’d love to hear from you.
Products:
Flexi 2.0 – AI-powered Student Tutor
AI-powered Teacher Assistant
https://www.ck12.org/pages/teacher-assistant/
Location
Bangalore (Office-based)
Basic Qualifications:
- Passion for creating simple, intuitive, and delightful web / mobile user experiences
- Strong understanding of computer science fundamentals, algorithms, and data structures
- Excellent problem-solving skills
- Ability to research and evaluate web and mobile frameworks and UI patterns
- Experience designing for multiple screen sizes, performance constraints, and varying network conditions
- Comfortable working in Agile environments with rapid iterations
- Ability to create and review high-level and detailed designs
- Strong focus on code quality, best practices, and maintainable code with solid unit test coverage
Required Skills & Experience:
- Bachelor’s or Master’s degree in Computer Science or equivalent
- 6+ years of overall experience
- Strong hands-on experience with either React.js (or a similar frontend framework) or mobile app frameworks such as Flutter or React Native.
- Strong inclination toward product ownership, with a focus on nurturing features based on how users actually use the product.
- Experience building and maintaining production-grade web or mobile applications
- Expert knowledge of object-oriented programming, design, and development
- Solid understanding of mobile application architecture, performance, and memory management
- Proficiency in Dart / JavaScript / TypeScript
- Experience consuming REST APIs and handling JSON
- Experience with responsive layouts and adaptive UI design
- Familiarity with UI patterns related to security, performance, and usability
- Experience using Git and mobile build/release pipelines
Good to Have:
- Experience with native mobile development (Android / iOS)
- Familiarity with CI/CD for mobile apps and app store deployments
- Experience working in distributed and Agile teams
- Performance optimization for scalable mobile applications
- Familiarity with LLMs (Large Language Models)
- Experience creating or maintaining mobile UI documentation or component libraries
Responsibilities
Ability to work on a cross-functional team within a very agile team, delivering on time and with high quality
Adjusts and defines new processes as they arise due to known and unknown customer/engineering requirements as it relates to frontend web development
Provides feedback on frontend architecture, code organization and CI/CD infrastructure for the team
Staying up to date with the best practices and future frontend development
Provides frontend leadership expertise and mentoring to other developers on not only the team, but the engineering organization as a whole
Takes pride in delivering ground breaking UI to web applications
Working closely with UX designers to turn their ideas into reality as it relates to creating visualizations for next generation cybersecurity
Qualifications
Proficient in developing large REACT Web Applications
Experience with Django applications
Proficient with TypeScript
Experience with Postgres or other relational database(s)
Experience developing REST APIs with authentication and scaling
Familiarity with some ORM (Object Relational Mapper) libraries
Cloud computing architectures (AWS, Azure, Google Cloud)
Experience with Docker a plus
What does the core role include?
- Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
- Designing stateless components in React Native
- Contributing in all phases of the development lifecycle
- Working with the developers to create and maintain a robust framework to support the apps
- Working with the developers to build the interface with a focus on usability features
What else can you expect in the role?
- Prepare and produce releases of software components
- Optimizing performance for the apps
- Problem-solving skills, analytical mind, and positive attitude
- Ability to think from end users perspective and focused on improving the overall product experience.
- Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support
What can fetch you brownie points?
- Hands on experience with React Native is required
- Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
- Strong understanding of JavaScript ecosystem
- Hands on experience on Android in creating Hybrid / Native applications
- Demonstrable UI/UX experience on a large-scale app.
- Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
- Good knowledge of JS frameworks like ReactJS is a plus.
Desired Skills and Experience
Hybrid Apps,React Native, Native iOS and Android Architecture understanding
• Participate in requirement, design, coding, implementation, testing, which include features enhancements, new functionalities, and web service integration.
• Contribute to code reviews for quality assurance and conformance to standards / guidelines.
• Develop front-end application features using HTML5 / CSS3 / JavaScript
• Build reusable code and libraries for various projects.
• Prepare develop/test environment for functional test and system test.
• Work collaboratively with product owner, scrum master, technical leader during the development, and launch and continuing refinement of products.
• Optimizing the web application for increased performance
• Code review to ensure code quality of the team;
• Maintaining brand consistency throughout the design; Education and Experience
• Bachelor’s Degree in Information Technology, Computer Science or relevant studies
• Minimum 3 years of experience in developing front-end development experience
• Experience in developing web applications using HTML, CSS, Bootstrap and JavaScript
• Experienced in JavaScript (ES6, Any one of the front-end JavaScript frameworks such as Vue.js, React.js )
• Familiar in Node.js like npm and webpack
• Experienced with code versioning tools such as Git.
2+ years on ReactJS / VueJS
Key Core Skills for React
Experience in building a single page application using ReactJS / VueJS
Strong knowledge of best practices and modern web design trends is necessary.
Must have experience for HTML5, CSS3, Bootstrap, Custom Graphics using SVG
Must have experience using CSS pre-processor: either LESS or SASS
Some experience with modern web-based typography.
Excel at rapid prototyping and at writing good code.
Experience with testing/debugging in multiple browsers and platforms.
Expertise in using Javascript and JQuery
Should have worked on REST and WebSockets
Should be able to write Unit testing using any one of the frameworks like Jasmin, Karma, Jest or
any other similar framework.
Should have experience in either one of the Build scripts like Gulp or Grunt or Webpack
Low-Latency UI, Page optimization, and bundle build+caching
Problem-solving and debugging skills
Component-based architecture
Key Tools
Git
Candidate should have worked on multiple projects using Git for version control
Candidate should be aware of Git commands like clone, pull, merge, etc.
Candidate should be aware of Git flow, like raising a PR and getting code reviewed
Candidate should have worked on Github or Gitlab or Bitbucket
Good To Have skills
Docker
Typescript
Node.JS
Experience with some NoSQL DBs like MongoDB
Experience with some CI/CD
Experience with WebPack or Gulp or Grunt
Location: Ahmedabad
Required Experience: 1-4 yrs Salary 12000 to 40000 per Month
- HTML & Java script. Experience with basic GMB etc. PHP exposure. Willingness to work on app and plug –ins etc is welcome.
- Custom Module development
- Front End Development skills (any of below):
- HTML5, PHP
- Shopify
- Magento (1.x & 2.x)
- Big Commerce
- Wordpress
- Server Setup
Qualifications:
BE/BTech/ME/MTech/MCA/M.Sc./Software Science [Computer Science & Information
Technology Background]
Experience:
2+ to 4 years of relevant experience in react js
Skills:
Knowledge in latest user-facing features using React.js, GraphQL, and CSS-in-JS.
Strong knowledge in HTML5/CSS3, jQuery the DOM, and relevant concepts
Strong Knowledge in REACT JS along with Webpack, Redux, React hooks, Material Kit
React, React Router.
Developing the latest user-facing features using React.js
Designing a modern highly responsive web-based user interface
Should follow the Google JavaScript Style Guide and other relevant best practices Knowledge
of performance testing frameworks including Mocha and Jest.
Must have worked as a part of Agile Teams and DevOps practices such as continuous
Integration tools (e.g. Jenkins), code repository, creating CI/CD pipelines is required.
Additional Knowledge of React, Redux, hooks will be preferred.









