Frontend Developer

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

https://www.flexi.org/

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

We are looking for a React Developer to join our awesome team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using React best practices. As a React Developer, you will implement a complete user interface in the form of a mobile/desktop web app & handle its integration with the back-end. 

• Develop user interfaces for modern rich internet applications with the latest Front End Technologies
• Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
• Writing tested and documented JavaScript, HTML and CSS
• Make design and technical decisions for React projects
• Develop application code and unit tests in the React. 
• Ensuring high performance

• BSc/BE/BTech in Computer Science, Engineering or a related field
• 1+ years Experience with React. Good to have working knowledge of React Native, Angular, VueJS
• Strong expertise with HTML, CSS, and writing cross-browser compatible code.
• Good understanding of AJAX and JavaScript DOM manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Hands on and implements complex React modules
• Able to implement automated testing platforms and unit tests
• Understanding of fundamental design principles behind a scalable application
• Proficient understanding of code versioning tools (Git) 
• Critical thinker and problem-solving skills
• Team player
• Good time-management skills
• Great interpersonal and communication skills

Responsibilities :

Build awesome web experiences using React.js
Plan and accommodate all mediums, screen sizes and device types
Build in flexibility and customization from the start
Internalize the user and promote good usability and accessibility in every experience
Be nimble and react quickly to changing business conditions
Work with product managers, content producers, QA engineers and release engineers to own your solution from development to production

Qualifications :

5+ years building web and/or mobile experiences with evidence of exceptional ability
Bachelor’s Degree in Computer Science or related field, or equivalent experience or other evidence of exceptional ability
Solid understanding of fundamental web technologies such as HTTP, REST, AJAX and JSON.
Strong proficiency in JavaScript / ES6, including DOM manipulation and the JavaScript object model
Thorough understanding of React.js and its core principles
Unit Testing with Jest/Enzyme
Experience with Redux
Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
Experience working with RESTful APIs
Experience with Nodejs, Expressjs or NextJs
Excellent mastery of web standards, cross-browser compatibility, accessibility and SEO.
Strong CSS skills w/ experience building responsive applications across a variety of browsers and devices using modern CSS3 techniques
Ability to identify tasks which require automation and automate them
Expert knowledge of maintaining and debugging live software systems
Prior experience with Symfony MVC frameworks desirable.

Please find below JD

• 4 -10 years' experience in Frontend technologies
• Strong core JavaScript with ES6, ES5, ES7
• Proficient in React.JS with minimum 2 years of experience
• Proficient in HTML5, CSS3
• Proficient in Grunt, Gulp and Webpack, bower, yarn, module loader
• Hands on experience with multiple library/frameworks - jQuery, Jasmine, Mocha, etc.
• Unit testing / E2E testing is necessary.
• Expert level understanding of HTTP protocols (1.0, 1.1, and 2.0) and WebSockets and JS WebSocket
• Experience with working on SaaS/PaaS based applications.
• Good analytical and problem-solving skills.
• Upbeat, highly motivated, and self-starter & Strong communication skills.

 Company profile: https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.innominds.com%2F&;data=04%7C01%7C%7Cbfa37f316b0142ee45e008d91a9266fd%7C4643991463b7464e83279b13737ae8cf%7C1%7C0%7C637570038501362488%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=mX05qphV6hkETXRm1DLlYLCNbkGAuwQ37P3%2BsQFwBpE%3D&reserved=0">www.innominds.com    

Do share below details to proceed further:

CTC:    

ECTC:    

NP:    

Work Location: Bangalore / Hyderabad  / Pune

Relevant experience in JavaScript, React / Angular:   

• Complete website redesign: The website of the company has been completely redesigned by collaborating with one of the country’s top designers who has worked with brands such as Treebo, Bira 91, etc. You will get the opportunity to create this from scratch.
• Learning Product: Creating the world’s first and most comprehensive live learning product to help kids become confident communicators
• Teacher Product: Ever thought of how millions of Uber drivers are managed completely by technology? You now have the chance to build technology that will manage the entire lifecycle of thousands of teachers across the globe.

•  Break down tech problems and determine a workable solution.
•  Integrate front-end design and/or code into the back-end system.
• Develop incrementally and iteratively to elicit feedback over a short period of time.
• Write a clean, readable code that doesn’t necessarily need to be commented on.
• Collaborate with the business and design teams
• Continue learning and growing in emerging web technologies and methodologies

• As a developer in a funded product company, you will find immense avenues of growth, in the form of knowledge, exposure to different technology, exposure to different products, career progression, and aggressive monetary growth based on performance.
• All 10x engineers will get unparalleled career growth and will outperform their batchmates by two times.
•  You will get complete accountability – you could proudly say that you have built complete products on your own

• Work experience as a front end developer with a reputed organization
• Good Understanding of  ReactJs or Next Js
• Intermediate understanding of relational databases, specifically SQL-based systems, and language.
• Basic to intermediate understanding of front-end languages and technologies, such as JavaScript, HTML5, CSS3, etc.
• Solid understanding of object-oriented development and design patterns.
• Good understanding of testing concepts and practices, including unit, integration, and use case testing.
• A BS/MS in Computer Science, Software Engineering, or related field or comparable experience in web application development required.

About Numen (https://numenhealth.com):
Numen Health is a Health-tech company with a goal to reimagine healthcare in India. Through an amalgamation of our healthcare team with the power of AI and the Internet of Things (IoT), we make healthcare easier and accessible through a data-based preemptive approach. Our mission is to facilitate change in the healthcare industry by moving from a reactive approach to a proactive one.
We are a wonderful, young team with experience in scaling up Indian and international businesses from the ground up. We are looking for like-minded and enthusiastic people who are passionate about making a lasting difference and want to help us revolutionize the way healthcare is delivered to a billion Indian!

Our Vision:
To shift the healthcare ecosystem from a ‘Sick-care' approach to a ‘Holistic-healthcare' approach. We aim to do that by enabling doctors and caregivers to move from treating ailments to employing a data-based,
preemptive approach.
About Product:
We offer preventive healthcare programs to individuals to improve their health. These plans are crafted in consultation with their treating doctor and a dedicated care team remotely monitors the progress in real[1]time. For doctors, Numen is a virtual facility to cater to all of their patient’s needs, remotely.
Why Join?
At Numen, you have the opportunity to make tangible changes to the existing healthcare systems in India
making it preventive and affordable. By joining the Numen team, you get to be part of a young, dynamic
team that is passionate about making a change and a fast-paced environment with multiple opportunities to
learn and grow.

Job Overview : 
Software Development Engineers FE will be responsible to participate in all stages of the software product development life cycle. This will include analysing system and user requirements, designing software flowcharts, creating user interfacing applications (Web Or Mobile) , troubleshooting bugs, and running tests to improve system functionality. An ideal
candidate would be someone who has proficiency in React Js, good analytical skills, the ability to anticipate issues and frame remedial actions, and excellent teamwork skills.

Responsibilities:
● Write simple, efficient, and maintainable code.
● Develop, scale and maintain web Applications written in ReactJs.
● Validating the functionality and security of the application.
● Manage individual priorities, deadlines, and deliverables.
● Function well in a fast-paced, rapidly changing environment.
● Ensuring best coding standards and practices to improve and maintain quality.
● Meeting with the engineering and product team to discuss project definitions and goals.

Requrements:
● Bachelor/Master degree in CS or related field from a reputed college.
● 2-6 years of experience in frontend software development.
● Sound knowledge of HTML,CSS, JavaScript and ReactJs.
● Solid grip on the programming basics like DS and algorithms.
● Prior experience in start-ups or health-tech will be a plus.
● Highly effective communication and interpersonal skills
● Strong troubleshooting and debugging skills

Responsibilities:

• Build the foundation of our supply side (enterprise) product from scratch. Maintain high standards of pixel perfect Ui’s and efficient User Experiences. 
• Our Supply Side ecosystem involves a plethora of products such as Catalog Management, Analytics Dashboard, Orders Processing, Finance Reconciliation, Notification centres etc. Develop a deep understanding of the mentioned use cases and build the systems for scale.
• Coordinate with Product managers, Product Designers & Backend Developers and outline sprints and tasks on a weekly basis.
• Conduct Comprehensive Unit tests before passing features to QAs. This requires a good top level understanding of backend infrastructure.
• Maintain High level of Code Quality and constantly optimize for performance and user experience.
• Be Collaborative. Self reliant and always keep pushing the limits of your knowledge.