
Role : Frontend Developer
Department : Technology Team
Experience : 2 - 3 Years of working experience in Frontend
Proficiency using modern web development technologies and techniques, including
(HTML5, JavaScript)
Location : South Delhi; 5 Day Working
Qualification : Bachelor’s degree in Computer Science or related field
Major Skills : JavaScript and ES6; HTML5/CSS3, Minimum 1 year flutter experience, etc
Requirements :
- Experience with Node.js as a backend framework and MongoDb or dynamodb (NoSQL)
- Experience with AWS and bitbucket
- Knowledge of integrating HTML with JAVA
Responsibilities :-
- Experience working with front-end web development and have worked on frameworks
like react js, angular js and / or Flutter
- Architect and develop a scalable and maintainable website/app
- Proven experience in troubleshooting, investigated and solved UI performance issues
- Architect solutions, establish best practices and introduce/implement new technologies.
- Knowledge of industry standard software best practices, development lifecycle processes and Agile and SCRUM methodologies
Preferred Qualities :-
- Ability to meet deadlines
- Assertive and go getter attitude
- Strong team player
- Analytical mind
- Relationship building
- Strong data understandings
- Strong problem-solving skills

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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 office in Bangalore.
We have a strong education platform that has served over 265+ million users, has got over 2.33+ billion questions answered, and more than 290,000 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 you never 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 offering: 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: Bangalore Office
Position: Frontend UI Developer (React)
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
- 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 2 years of experience
- Hands-on with frameworks like React, Redux, Backbone, Webpack, Lerna
- Expert knowledge of OOP (Object Oriented Programming), design, and development
- In-depth knowledge of browser internals and architecture
- Expert in JS (OOJS), HTML5, CSS3, JSON, REST, XML, W3C standards
- Experience with responsive web design & frameworks media queries
- Experience with UI patterns (security, performance, usability)
- Familiar with version control systems (Git/Subversion) & build tools like Grunt
Desired:
- Experience with ES6, Node.js
- Worked in distributed/agile environments
- Performance optimization for scalable web apps
- Familiarity with LLMs (Large Language Models)
- Familiarity with Storybook (React) or similar frameworks
Location: Mumbai
Experience Required: 2+ Years
Job Type: Full-Time
Notice Period: Immediate Joiners
About the Role
We are seeking a skilled and experienced Front-End Developer to join our product engineering team. The ideal candidate must have experience working in a product-based software development company and should have hands-on involvement in e-commerce platform projects.
Mandatory Criteria
- Candidate must be currently working or have prior experience in a product-based software development company
- Candidate must have worked on at least one e-commerce platform project (end-to-end involvement)
Key Responsibilities
- Develop and maintain responsive, high-performance web interfaces using React.js
- Translate UI/UX designs into pixel-perfect, reusable front-end components
- Optimize components for maximum performance and cross-browser compatibility
- Integrate front-end components with backend RESTful APIs
- Collaborate with design, backend, and QA teams to deliver seamless user experiences
- Participate in code reviews, testing, and agile development ceremonies
Required Skills
- Strong proficiency in JavaScript (ES6+), React.js, HTML5, and CSS3
- Experience with state management libraries such as Redux or Zustand
- Solid understanding of responsive design and cross-browser compatibility
- Familiarity with RESTful APIs and API integration
- Knowledge of version control systems like Git
- Understanding of performance optimization, debugging, and front-end testing practices
Key responsibilities: We are seeking a highly motivated and experienced Frontend Developer with a strong focus on React JS. In this role, you will be responsible for developing and implementing user-friendly, high-performance web applications. You will be working closely with our team of designers, developers, and project managers to ensure the successful delivery of high-quality digital products.
Responsibilities:
Develop new user-facing features using React JS
Build reusable components and libraries for future use
Collaborate with design and development teams to ensure the technical feasibility of UI/UX designs
Optimize applications for maximum speed and scalability
Write clean, maintainable, and efficient code
Stay up-to-date with emerging trends and technologies in frontend development
Participate in code reviews and contribute to the improvement of development processes
Communicate effectively with team members to ensure the timely completion of projects
Troubleshoot and debug issues that arise in production environments
Bachelor's degree in Computer Science or a related field
At least 3 years of experience in frontend development, with a strong focus on React JS
Proficient in HTML, CSS, and JavaScript
Familiarity with Git and Agile development methodologies
Experience with RESTful APIs and integration with backend systems
Strong problem-solving skills and attention to detail
Excellent written and verbal communication skills
Ability to work independently and as part of a team
Portfolio of previous work demonstrating proficiency in React JS
This is a full-time position with competitive salary and benefits. If you have a passion for frontend development and are highly skilled in React JS, we encourage you to apply for this exciting opportunity to join our team.
4+ years of experience building Front end web applications
- Deep understanding of the ReactJS, Redux state container, Webpack module bundler
- Delivery of technical solutions with clean, well-tested code
- Be an active part of the engineering community team and collaborating with other developers
- You have solid experience working in an agile development environment
- Good JavaScript experience including asynchronous programming, pec closures, types, and ES6
- Demonstrable experience with RESTful APIs and JSON
- HTML 5 and CSS 3 as part of theming real-world projects
- Understanding of pre-processed CSS platforms such as Sass or Less.
- Proficiency in UI Prototyping Tools like Invision, Sketch, Adobe Experience Design etc.
- Good knowledge of responsive web design and experience with Git or other source control systems
- Knowledgeable and experienced with micro-service architecture
- Strong ability to debug code
As the senior member of the frontend development team at Mosaic, you will be responsible for
setting best practices and making sure that the others adhere to them. Also, you will be
responsible for shaping up the entire system for scale and collaborating intensively with the
backend and design teams to create the best consumer experiences.
Responsibilities
- Develop all user-facing products in React
- Build reusable components and front-end libraries for future use
- Translate designs and wireframes into high quality code
- Optimize components for maximum performance across a vast array of web-capable
devices and browsers
- Focus on code maintainability and performance of application.
- Provide technical advice and assists in solving programming problems.
- Enhance SEO, Analytics and overall frontend architecture for better performance
Requirements
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object
model
- Good foundation in design and a knack for designing interactions and elegant interfaces
- Thorough understanding of React.js and its core principles
- Good to have experience with popular React.js workflows (such as Flux or Redux)
- Experience with data structure libraries
- Familiarity with RESTful APIs
- Familiarity with modern front-end build pipelines and tools
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git)
- Proficient in industry standard best practices such as Design Patterns, Coding Standards,
Coding modularity, Prototypes etc.
- Experience in using debugging tools used for profiling/optimizing performance
- Experience in debugging, tuning and optimizing UI components
- Bachelor’s degree (B.A.) in Computer Science, MIS or related degree and a minimum of
two (2) years of relevant development or engineering experience.
We are looking for UI developers with good knowledge of React JS. As a developer you will be responsible for understanding the requirements and developing the UI as per UX / VDs provided by the business / product team. You will be responsible for delivering a performant, robust and easy to maintain application. You will co-ordinate with different teams like backend developers, QA, product team and devops team to ensure quality deliverables.
Qualifications
- Bachelor’s or higher degree in Computer science or related technical field
- 2-4 years of experience in developing UI components leveraging React.js
- Experience in eCommerce domain is an advantage
We are cloud enthusiasts on a mission to help cloud engineers build their own cloud management platform without the need for coding or integrating other tools.
We are looking for an experienced UI Developer to work with us as a freelancer. You will be part of the core development team working on state-of-the-art advanced cloud-based technologies.
RESPONSIBILITIES:
- Understand and improve the user experience across the site
- Make web apps responsive and pixel perfect
- Perform unit testing and automation testing of the features developed
REQUIRED SKILLS/EXPERIENCE:
- Proficient and good experience in HTML5, CSS3, Javascript, Typescript, Bootstrap 4, React.js.
- 4-8 years of relevant working experience
- Strong understanding of Object-oriented concepts and ECMA2015 standards
- Experience in identifying and implementing page performance improvements
- Attention to detail, and ability to multitask and meet deadlines
- Passion for quality and engineering excellence at scale and code quality
- Strong communication and conflict resolution skills












