Frontend Developer (ReactJS)

Job Title : Frontend Developer (React.js) – Blockchain Experience

Location : Remote

Experience : 3+ Years

Key Skills : React.js, TypeScript, Web3.js, blockchain integration, UI/UX design

Job Description :

We are looking for a skilled React.js Frontend Developer with experience in blockchain applications. The ideal candidate should have expertise in React.js, Web3.js, and UI/UX best practices to build seamless decentralized applications (dApps).

Requirements :

• 3+ Years of React.js development experience.
• Strong knowledge of Web3.js or Ethers.js.
• Experience integrating smart contracts with frontend.
• Proficiency in TypeScript and modern frontend frameworks.
• Understanding of blockchain fundamentals and dApp development.

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

Job Responsibilities:

• Work closely with the marketing team to build high conversion landing pages. Maintain and improve our marketing codebase
• Contribute ideas and efforts to improve the quality and efficiency of the marketing workflows
• Write code using agile methods and tools. Plan, create, and execute (manual and automated) frontend tests.
• Staying up to date with current technologies and providing insights on cutting-edge software approaches, architectures, and vendors

Required Skills:

• Minimum 2-4 years of experience in Front-end development.
• Fluency in HTML, CSS, JS, jQuery, Bootstrap
• Good knowledge of Node.js and Rest APIs
• Experience in page speed optimization 
• Experience in writing responsive and cross-browser compatible frontend code
• Good understanding of the modern frontend ecosystem.
• Strong problem-solving skills. Willingness to learn and ability to flourish in a dynamic, high-growth, entrepreneurial environment
• You are a self-starter, capable of working independently.
• True love for technology and what you do. 
• Maniacal attention to detail. 

Good to have:

• Experience in WordPress theme development
• Understanding of basic technical SEO principles
• Knowledge of a frontend framework like Angular

• As a lead engineer, you will be expected to execute and deliver large and complex projects end-to-end, with or without the involvement of other team members.
• Participate in code reviews, app architecture, and design discussions.
• Ensuring timely delivery of all product deliverables.
• Be the go-to person for the team for guidance and troubleshooting. 
• Mentoring junior developers and set best practices for coding, reviews, etc.
• Ensuring performance and scalability in all new product features being developed. 

• Overall of 5+ years expertise in writing HTML/CSS/JavaScript 
• Experience in Angular and preferably React.js
• Expertise in database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries.
• Expertise in all common AWS cloud technologies, knowledge of CI/CD tools, and workflows.

We are looking for a React+Iconic developer to build our cross-platform mobile application. You must be adept with React, ReactQuery, and Iconic and MUST have experience of using these technologies in a production environment.

You would be expected to also contribute to a couple of browser-based portals that support the product. You must have worked beyond JWT and used RSA and AES encryption and decryption.

You must have experience and be adept with Object Oriented Javascript and writing extensive business workflows in Javascript. You would be an expert in responsive design and should have experience converting Figma designs to reality

We are looking for a Front end Engineer with at least 1 year of experience. with a fast-moving organisation based out of Mumbai, India.

Skills Required:-

• java script
• React
• React native
• Knowledge of Angular, HTML/CSS3 is a plus
  
  

Roles and Responsibilities:-

• Develop new user-facing features.
• Defining Architecture & Flow for the enterprise-level project
• Writing reusable code and libraries for future use.
• Ability to write clean code with proper comments
• Ensure the technical feasibility of UI/UX designs.
• Optimise application for maximum speed and scalability.
• Integrating API's
• Excellent Debugging Skills
• Great Problem-Solving Skills
• knowledge of best practices in javascript framework and the ability to implement it
• Helping others if they got stuck with any problem