SDE 3 - Frontend

Basic Qualifications

• BA/BS Degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.

• 3–5 years of professional software engineering experience with a strong focus on frontend / UI development.

• Strong proficiency in React and TypeScript.

• Solid understanding of HTML5, CSS3, and modern JavaScript (ES6+).

• Experience integrating frontend applications with GraphQL APIs.

• Familiarity with microservices architectures and frontend–backend integration patterns.

• Experience with Git and collaborative development workflows.

• Hands-on experience using AI-assisted development tools in day-to-day engineering work.

Preferred Qualifications

• Experience working with or alongside NestJS-based microservices.

• Familiarity with GraphQL client libraries such as Apollo Client.

• Experience with frontend testing tools including Jest, React Testing Library, Cypress, or Playwright.

• Exposure to frontend performance optimization techniques (lazy loading, code splitting, memoization).

• Familiarity with design systems, accessibility tooling, and component-driven development.

• Exposure to LLM APIs, agent frameworks, or AI-enabled frontend automation.

Suggested Skills

• React / TypeScript

• GraphQL (Apollo Client)

• UI Architecture & Design Systems

• Frontend Testing (Jest, RTL, MSW)

• Build & Tooling (Webpack, ESLint, Prettier)

• CI/CD for Frontend

• AI-assisted Software Development & Automation

Additional Information

• AI-assisted development is a core expectation for this role.

• The team builds modern UI systems backed by GraphQL, NestJS microservices, and intelligent automation.

• This role offers opportunities to deepen frontend expertise while influencing how AI improves

Passionate about education? Join us at CK-12 !!

CK-12 (www.ck12.org) 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 office in Bangalore.

We have a strong education platform that has served over 352+ Million users, have got over 2.88+ Billion questions answered, and have more than 350 thousand customized Flexbooks. We have embarked on an exciting journey to build an AI-powered student tutor and Teacher Assistant to build the next generation of learning platforms.

About CK-12 Foundation

CK-12’s mission is to provide free access to open-source content and technology tools that empower students as well as teachers to enhance and experiment with different learning styles, resources, levels of competence, and circumstances.

To achieve this noble and ambitious vision, we at CK-12 are challenging the traditional model of education to transform it dramatically. Technology has opened up lots of opportunities to revolutionize education for the benefit of students, teachers and parents.

We have chosen to be non-profit so that we can effectively realize our mission and do the right thing! It also provides us with the ability to experiment with big and bold ideas. CK-12 is backed by Vinod Khosla, a renowned technology venture capitalist.

At CK-12, you’ll experience the benefits of working in a dynamic, entrepreneurial, innovative and non-bureaucratic environment where you will get a lot of cool things done than you ever imagined! We are a small group of passionate folks who are determined to disrupt the current form of education.

Technology is key to scale education and we deeply believe in it. Come develop great solutions on our cloud-based (AWS) and AI-first platform delivering rich and interactive content.

Does our mission, people and technologies excite you? If the answer is YES! and you are a great technologist who will challenge status-quo (no order takers please!) by innovating, please come join us! Together, we will change the world!

Check out our latest product offerings

• Introducing Flexi 2.0
• Flexi, our AI-powered Student Tutor – https://www.flexi.org/
• AI-powered Teacher Assistant – https://www.ck12.org/pages/teacher-assistant/

Location: https://goo.gl/maps/NkA2Hr8JhtE3raWr5

Frontend UI Developer (React)

Location: Bangalore

Basic

• Passion for creating great user experiences that are simple and intuitive.
• Good understanding of CS fundamental algorithms and Data Structures.
• Great problem solver.
• Understands and researches different front-end frameworks and patterns to implement great user interfaces.
• Implements solutions keeping in mind the user experience, multi-devices, performance across devices, and bandwidths to provide intuitive user experiences on multiple devices.
• Ability to work in an Agile environment with rapid iterations.
• Creates and reviews high-level designs.
• Creates detailed designs from high-level designs and reviews designs of other team members.
• A Code Craftsman who follows the best software development and coding practices, delivering understandable and maintainable code with thorough unit test coverage.

Required

• Bachelor's or Master's degree in Computer Science or equivalent.
• At least 5 years of experience.
• Hands-on experience with front-end frameworks like React, Redux, Webpack, and Lerna.
• Expert knowledge of Object Oriented Programming, design, and development.
• In-depth knowledge of browser internals and architecture.
• Expert knowledge of Object Oriented JavaScript, HTML5, CSS3, CSS3 transitions and transformations, JSON, Web Services (REST), XML, and W3C standards.
• Experience with responsive web design, media queries, and delivering functionality that works across a range of client devices/browsers from desktops and laptops to mobile platforms.
• Experience with UI design patterns, security, performance, and usability.
• Familiarity with standard development tools like version control systems (Git) and build tools like Grunt.
• Adept at AI coding assistants, leveraging them beyond prompting.
• Working experience in skill and tool development and usage in AI coding tools.

Desired

• Working experience with ES6 and Node.js.
• Experience in a driven, distributed, and agile development environment.
• Experience with performance optimizations to deliver a great website experience to all users.
• Familiarity with Storybook for React or similar frameworks.

We're looking for a Front-end Developer who is able to develop interactive, user-friendly

interfaces which are AMAZING and AESTHETIC in design, appearance, architecture, and compatibility. You will work on a diverse set of unique and challenging projects that allow user to seamlessly interact with technology.

Work Details:

● Deliver best-in-class HTML5/CSS3 front-end code across a broad array of interactive

web and mobile projects

● Excellent eye for layout and ability to translate PSD files into pixel perfect HTML/CSS

code. SASS is a plus.

● Experience with modern JavaScript libraries and frameworks in any of them (React,

Angular or Vue)

● Proficiency working with RESTFUL APIs is a plus

● Intimate knowledge of cross-browser and cross-device development

● Ability to write high-performance, reusable code for UI components, including

appropriate testing

● Some experience in object-oriented programming.

● Strong problem solving, troubleshooting, & analysis skills.

● Familiarity with Linux/Unix environment

● Keen to learn, mentor and willingness to take ownership of work items

● Some experience with distributed version control systems, such as Git

Requirements

● Bachelor’s degree in Computer Science or a related field, or equivalent professional

experience

● Experience working with agile teams and making rapid decisions in a dynamic and

disruptive environment

● 3+ years of relevant software development experience

● Strong communication skills

Role : React JS Developer 

• 3-5 years of experience as a React JS developer. 
• Must have Working Experience in a product based organization at least 18 months.
• Good Communication skills must. 
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model 
• Thorough understanding of React.js and its core principles 
• Experience with popular React.js workflows (such as Flux or Redux) ● Familiarity with newer specifications of ECMAScript
• Experience with HTML,CSS, Bootstrap and UI Design 
• Knowledge of RESTful APIs 
• Knowledge of modern authorization 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 
• Familiarity with code versioning tools {such as Git} 

• Core Javascript, HTML, CSS, JSON understanding is mandatory
• Expertise of functional programming using JavaScript (ES5, ES6)
• Expertise of UI framework - React / Redux, RXJS
• Preferred experience with new generation of Web Programming - using Micro Service, REST/JSON, GraphQL and Component UI models
• Expertise with data visualization flow development along with usage of modern charting and graphical java script libraries
• React / Redux, RXJS, HTML, CSS, Javascript (ES5, ES6), Data visualization and Chart Libraries
• Data Structure and Design Pattern
• Strong knowledge of JSON data handling, GraphQL and their working

• 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.

Qualifications:

• Minimum one year of experience in React, Redux 
• Experience with Build systems e.g. Webpack/Grunt/Gulp 
• In-depth knowledge of HTML/XHTML/HTML5 
• Experience with Testing frameworks e.g. Karma/Jasmine/Protractor/Cucumber/Mocha/Jest 
• Experience with interface development toolkits: e.g. Less/SASS 
• Experience with web service integration protocols such as REST & GraphQL 
• In-depth knowledge of Javascript e.g. ES5/ES6/Typescript 
• Strong Knowledge of CSS 3 
• Must be a strong team player 
• Have a good understanding of design and user experience principles. 
• Experience in dealing with cross-browser compatibility requirements 
• Understanding of mobile development best practices (e.g. responsive design, graceful degradation, etc.) 
• Ability to work independently as well as on a team and learn from colleagues 
• Open-minded, flexible and willing to adapt to changing situations 
• Good designing & color combination skills 
• Experience with Git or other version control systems.