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

1. Good understanding of AJAX and JavaScript
2. Experience with RESTful services
3. Experience in building user interfaces with JavaScript frameworks like Angular
4. Skilled with common front-end technologies such as HTML, CSS, JS
5. Strong understanding of JavaScript concepts like Promises and asynchronous programming
6. Ability to decompose a problem into clear software and UX design actions.
7. Understands how to optimize the delivery of code and assets (e.g., images, fonts) to a browser or device (e.g., lazy loading assets, using CDNs, caching, compression, etc.)
8. Experience in working with jasmine, karma, and Angular TestBed
9. Experience in working in agile environments
10. Able to maintain versioning for the source code using Git

• Our engineers are involved in all parts of the product lifecycle: brainstorming, design,prototyping, planning, execution, and deploying.
• We brainstorm to understand and explore the difficult problem and come up with the best solution for the hardest problems that impact the world.
• You will develop broad-ranging skills working on a wide variety of initiatives. You will take responsibility for your projects, but you'll also have teammates who look out for you.
• We operate in a “get s**t done” environment where the goal is always to execute and implement. While doing all of this...You will not forget to have fun!

WHAT WE VALUE

• You're cool with working with others. Our jobs aren’t done in a vacuum and everyone contributes to get the job done.
• You’re not afraid to make mistakes because without challenge, you’re not learning.
• Speaking of learning, you have a constant desire to grow and develop.
• You care about great design, not only in the product and visual sense, but also in your code and technical architecture.
• You are passionate about product craftsmanship, and can balance that with deploying something relevant.
• You move fast with a sense of urgency. You want to work on things that make an impact on the world.

DESIRED EXPERIENCE

• Candidate Expectations: Design, code, deploy and maintain scalable software infrastructure to meet Blowhorn's demands.
• 3+ years’ experience in a start-up environment or any reputed product based company
• Build APIs for business clients to integrate blowhorn into their systems.
• Setup processes and methodology for sustainable software development.

DESIRED SKILLS

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Good understanding of JS frameworks (AngularJS, ReactJS, VueJS), Angular 5+ and Bootstrap.
• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Some exposure to Analytics/Dashboard and related client frameworks (D3.js, Apache superset)
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Has worked extensively on Google maps and features like live tracking, geo fencing
• Good API integration skills (with backend frameworks)
• Mobile frameworks like Flutter is a plus
• Collaborate with other team members and stakeholders
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of code versioning tools, such as (Git / Mercurial / SVN)
• Good understanding of SEO principles and ensuring that application will adhere to them.

Roles and Responsibilities

• Lead the delivery of high quality, innovative, flexible, cost-optimized and scalable technical solutions that meet business requirements
• Design, Develop, test and maintain software applications with MVC architectures, Micro services and scalable cloud native apps.
• Perform hands-on coding and provide thoughtful code reviews
• Mentor and lead team members to continuously improve quality and productivity of deliverables
• Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
• Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with cross functional team along with client's team
• Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User Focused, Adaptive
• Lean Principles & Analytical Thinking
• Project planning, timelines and milestones for execution and deliverables
• Participate into the Evaluation Review of your team member

Desired Candidate Profile

• Experience in building enterprise web application using ReactJS as the frontend framework
• Experience with Redux and React Hooks
• Expert in HTML5, CSS3
• Experience in Bootstrap4 or CSS pre-processor like Less or Sass is highly desirable
• Strong knowledge of best practices and modern web design trends is necessary.
• 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
• Should have worked on REST client and WebSockets
• Should be able to write Unit testing using any one of the frameworks like Cypress, Jasmine, Karma, Jest , Enzyme 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

Overview
We are looking for a Senior JavaScript developer who is well versed with React and TypeScript.
2-5 years experience mandatory! We look for individuals with a deep knowledge of JavaScript, CSS, and HTML, who are not only comfortable in writing custom JavaScript but also know when to apply off-the-shelf solutions to a problem. Individuals who do well on this team are self-motivated engineers with a passion for user experience & innovation.
We currently work with TypeScript, React, GraphQL, and Node.js, however the ability to adapt with changing technology is an important quality that we are looking for.

Responsibilities
Developing new user-facing features using TypeScript/React.js
Building reusable components and front-end libraries for future use
Translating designs and wireframes into high quality code
Optimising components for maximum performance across a vast array of web-capable devices and browsers
API integrations

Skills
Thorough understanding of Typescript & React.js and its core principles
Experience with popular React.js workflows (such as Redux)
Familiarity with newer specifications of EcmaScript
Experience with data structure libraries (e.g., Immutable.js)
Knowledge of isomorphic React is a plus
Familiarity with GraphQL/RESTful APIs
Knowledge of modern authorization mechanisms, such as JSON Web Token
Experience with common front-end development tools such as Babel, Webpack, NPM, Yarn etc.
WebRTC knowledge is a plus.

Position: Lead Frontend Engineer

Location: Bangalore, IN (currently remote)

Employment: Full time

Who We Are?

EmptyCup is an interior design platform. Our goal is to make good interior design accessible. Learn more about us here: https://drive.google.com/file/d/1_PBkSaHLep-QsZzRWdKMI3amc-KFe99z/view">intro presentation

You can also checkout our https://emptycup.in/">website to know more about our product offering.

Job Description

• Use your passion and deep understanding of front-end technology to create high-impact and performant user experiences.
• Lead the most creative collaboration in a cross-functional team, having design, product, and frontend teams.
• Brainstorm features with product and design teams to influence decisions guided by the possibilities and limitations of the codebase as well as the current state of technology.
• Proactively perform code reviews and participate in architecture and design discussions.
• Adopt and ensure best practices while developing, testing, maintaining, and deploying code.

Requirements

An engineer passionate about front-end who can work on projects independently, collaborate across teams, and provide mentorship and guidance to others.

• Has an experience of 4-5 years in the work
• Experience with ReactJS (knowledge of internals is a plus)
• Well versed in HTML, CSS, and JavaScript, and in a variety of design patterns
• Experience with build tools like webpack, babel, etc.
• Understanding of core UI/UX concepts
• Hands on experience Rest API, Databases, Microservices, Architecture
• Understanding of front-end security and performance testing

• The UI developer will produce robust front end for advanced financial banking and trading applications connecting with server side using micro services
• 3+ years of relevant experience in front end development using React.JS.
• Strong knowledge of Web development technologies, including HTML5, CSS3 etc
• Should have a knowledge of java script libraries like ag-grid, datagrid, chart js, D3 js etc
• Strong experience in developing UI applications showing large amount of data in grid format.
• Must have good experience of testing frameworks like mocha/chai, jasmine etc. for React JS.
• Excellent knowledge of Java and spring, with experience of use in a professional environment