SDE 1(UI)

Position Title : Frontend / Chrome Extension Developer (React + TypeScript)

Experience : 3+ years

Location : Remote

Job Role Summary :

Build and ship production-ready Chrome extensions that inject UI into existing web apps. Own content scripts, DOM integration, performance, and accessibility (WCAG 2.1 AA).

Mandatory Skills :

React, TypeScript, Chrome Extensions (MV3), Content Scripts, DOM Injection, MutationObserver, TailwindCSS/CSS Modules, Accessibility (WCAG 2.1 AA).

Key Responsibilities :

• Develop Chrome extensions using React + TypeScript.
• Inject and manage UI components within third-party web app DOMs.
• Write and maintain content scripts; handle dynamic pages via MutationObserver.
• Implement clean, responsive styling with TailwindCSS or CSS Modules.
• Ensure accessibility (WCAG 2.1 AA), keyboard navigation, and ARIA semantics.
• Integrate with APIs, manage extension permissions, storage, and messaging.
• Optimize performance, handle edge cases across sites, and write basic tests.

Required Skills :

• Strong React + TypeScript in production.
• Chrome Extension architecture: manifest v3, content/background scripts, messaging, permissions.
• DOM manipulation and safe UI injection strategies.
• MutationObserver, event delegation, handling SPA route changes.
• TailwindCSS or CSS Modules; solid CSS fundamentals.
• Accessibility (WCAG 2.1 AA) and cross-browser compatibility (Chromium/Firefox optional).
• Familiarity with build tooling (Vite/Webpack), linting, and Git.

Nice-to-Have :

• Experience with service workers, storage (sync/local), and i18n.
• Testing with Jest/RTL/Playwright.
• Security basics for extensions (CSP, sandboxing).

position Summary

§  Title: UI Developer

§  Location: Bangalore

§  Type: Full Time

§  Qualifications: Bachelor’s/Master’s degree in computer science/Information Science

§  Experience: 4to 7 years

Development skills

§  Top-notch programming skills and in-depth knowledge of modern HTML/CSS, JavaScript

§  Hands-on experience in React JS, ECMAScript (ES5,ES6/above)

§  Experience in Unit and E2E test automation (preferably Jest &Cypress)

§  Knowledge of web components and different component patterns

§  Experience using a state management library (Redux, Context API)

§  A solid understanding of how web applications work including security, session management, performance, and best development practices

§  Adequate knowledge of Object-Oriented Programming and web application development

Methodologies

§  Git, Jenkins

§  Test driven development

Good to have

§  Very good at programming and debugging for cross- browser compatibility and accessibility code

§  Unit testing experience on tools such as chai, mocha, jasmine

§  Reusable components development that can be used across web/ mobile applications.

§  Build tools such as webpack, grunt, gulp, babel

Other skills

§  Collaborate with business partners to gather requirements, implement new functionality, and drive continuous improvements

§  Excellent written, communication & presentation skills

§  Strong analytical skills and enjoys solving complex technical problems.

§  Participate in all phases of software life cycle including architecture, technical design, implement, test, and launch

§  You enjoy wearing multiple hats and roles, and titles are not important to you.

§  You enjoy doing it right first time and utilize tools & techniques to constantly excel in what you work to deliver it on time.

§  You are comfortable working under strict confidentiality agreements and often behind the-scenes.

§  You are self-organized and manage time and resources well.

§  Work independently and as part of a team

§  You are constantly growing your own knowledge, and helping to grow the knowledge of others

Job Description:

We are looking for a React JS or React Native Developer to join our team.

In this role, you will be entrusted with developing JavaScript applications using React.js or React Native.

Apply now for the role of a React.js or React Native Developer at Codebuddy, which is opening doors for skilled, energetic developers looking for MERN Stack Developer Jobs.

If you can help us design and create multiple layers of applications while working cross-functionally across different infrastructures. You would fit perfectly if you love problem-solving, design, and creating quality offerings.

Responsibilities:

• Developing existing programs by analyzing user requirements and identifying areas for modification by R&D followed by coding.
• Develop UI in HTML, CSS, and JS and integration with the backend using REST API.
• Translate storyboards and various use cases to create high-performing apps.
• Write, execute, and maintain clean, reusable, and scalable code.
• Integrate our various data storage solutions.
• Ensure responsiveness and boost the performance of our apps.
• Find and address the various bottlenecks and bug-fixes.
• Work on JavaScript/Typescript using React Native/React, Redux & Node.js.
• Help in code automatization.

What You Need To Apply(Technical Competency):

• Good knowledge of JavaScript, React, API.
• Knowledge of JavaScript Stack / Framework.
• Knowledge of Object-Oriented Programming
• Ability to document their code.
• Understanding accessibility and security compliance.
• Good knowledge of GIT
• Ability to multitask and work in a fast-paced environment.
• Self-motivated with the ability to work independently or jointly in a self-directed way.
• Demonstrated successful development of web or mobile-based applications
• Proven analytical and problem-solving capabilities
• Keen attention to detail
• Strong work ethic and desire to build industry-leading products
• Proactive instead of reactive
• Looking for ways to improve self and projects.

Interpersonal skills:

• Must be comfortable working in a team and independently when required.
• Must be disciplined, proactive and self-motivated.
• Needs to have problem-solving and analytical skills.

If you have it all in you, we are happy to have you with us!

• Work closely with design, product management, and development teams to create elegant, usable, responsive, and interactive interfaces across multiple devices.
• Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable content modules, and maintainability of the code.
• Implement UI development principles to ensure that the product client-side serves at scale.
• Review and optimize usage by monitoring key metrics and rectifying the issues proactively.
• An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.

• 3 to 6 years of relevant work experience as a web developer, UI developer, JavaScript expert, or frontend engineer
• Sound knowledge in JavaScript, ReactJS, HTML, CSS
• Familiar with UI layouts, SASS, bootstrap, and Material UI
• Experience debugging using popular JavaScript-based tools like Chrome Developer Console

• Knowledge of TDD frameworks mocha, chai, jest etc.
• Understanding of Typescript
• Understanding of ReactJS based frameworks like NextJS, Gatsby, etc.
• Understanding of REST API
• Passionate to create good design and usability

Who are we?  

Whatfix is the #1 Digital Adoption Platform (DAP) for Enterprises. We are disrupting the way Learning, Training and Application Support content is consumed. We provide large enterprises with a SaaS platform that helps accelerate product adoption and reduce support & training efforts by providing contextual and step by step guidance inside any web application at the exact time a task is being performed. The product has redefined the way companies onboard, train, and provide support to users. 

What sets us apart from the rest?

With over 100 of the Fortune 500 companies already onboard as customers, Whatfix has been named among the top 20 B2B tech companies alongside the likes of Adobe, PayPal, and Cisco.

With a YoY growth of 300%, we have also been recognized among the top 50 fastest growing SaaS companies worldwide in the SaaS 1000 list and as a Market Leader by Gartner in the Digital Adoption space. 

We are pleased to have an Employee rating of 4.6 on https://www.glassdoor.co.in/Reviews/Whatfix-Reviews-E1016569.htm" target="_blank">Glassdoor and our Customer obsession can be seen in our reviews on platforms like https://www.g2.com/products/whatfix/reviews" target="_blank">G2 Crowd & https://www.gartner.com/reviews/market/customer-communications-management-software/vendor/whatfix/product/whatfix" target="_blank">Gartner Peer Insights.

The employees are happy, the customers are happy, but what about the investors? Take a look for yourself - http://www.sequoiacap.com/" target="_blank">Sequoia Capital || http://www.stellarisvp.com/whatfix-what-we-learnt-from-series-a-to-series-b-in-a-saas-business/" target="_blank">Stellaris || https://blogs.cisco.com/innovation/tomorrows-customer-experience-why-cisco-invested-in-whatfix" target="_blank">Cisco || https://eightroads.com/en/news/our-investment-in-whatfix" target="_blank">Eight Roads || http://www.helionvc.com/blog/we-are-pleased-collaborate-whatfix.html" target="_blank">Helion Ventures

“Hustle Mode ON” is something we live by.

Our Team:

The Engineering team at Whatfix provides end-to-end engineering throughput that forms part of core platforms and services that drive Whatfix's business.

Our team is responsible for creating the Customer Platform and everything around it - be it Analytics, Infrastructure, or Core Algorithms. The team owns and is responsible for all pieces that we design, build and support end to end for Whatfix product/ business.

Our product is built around a core of JAVA with enterprise businesses using the Whatfix system. On a monthly basis, millions of interactive guides are processed. Building, testing, and deploying to any of our environments are as simple as pushing a commit to a git branch. We like to keep our technology up-to-date. All of the technology is built and maintained by this small development team, so from day 1, the software you write will be used by people from all over the world.  

RESPONSIBILITIES:

• Design and develop highly scalable, reliable, and fault-tolerant systems for one of the world’s fastest-growing startups
• Work with business to define requirements
• Perform technical design and hands-on coding for development and enhancement efforts
• Develop new user-facing features
• Building reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Promote best practices in design and coding
• Conduct design and code reviews
• Understand the customer needs & implement
• Articulate complex problems communicating viable architecture and design approaches in a clear and concise manner
• Enhance the agile SDLC within the Development Team through new learning, continued growth, and applying industry best practices and processes
• Occasionally participate in customer demos & provide inputs wherever required
• Keep optimizing & automating mundane tasks

You'll be a core member of the team.

Individual growth is important to us. We schedule time every week to explore an interest or learn something new. Team members have also used it to do everything from learning new algorithms to playing with the new framework, to exploring what the new analytics layer could be used for. We also take some time each day to discuss what we're working on, and even pair programs to teach each other about parts of the codebase. There's no risk of stagnation in this job, you would still be hands-on after a few years.

REQUIREMENTS:

We are looking for a Front-End Engineer to help us scale and go deep on our technical capabilities.

• 4 -12 years of professional front-end development experience
• Hands-on experience with Front end technologies - JavaScript, Typescript, HTML, CSS
• Experience with React Ecosystem (React Router, Styled-components, Server-side rendering, Context API, React Hooks) is strongly preferred
• Experience with state management libraries such as Redux is a huge plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Experience in backend programming languages such as Java is strongly preferred 
• Experience in building Web applications using frameworks like Spring, Microservice architecture
• Work experience, preferably from internet companies, products, or startups
• Expertise in design principles and their application
• Strong verbal and written communication skills
• Fast Learner & a Team Player

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

• Should have exp. 01 to 02 years
• Should have expert level knowledge of HTML5, CSS3, JavaScript, Angular and writing cross browser compatible code
• Good understanding of AJAX and JavaScript Dom manipulation, Responsive Design
• Proficiency with building Single Page Apps using Javascript component libraries.
• Should have experience in Agile Software Development projects
• Should have good hands on experience with Object oriented JavaScript and Design Patterns
• Should have knowledge on experience on Java, Web services using REST /SOAP over JSON is a plus

Job Types: Full-time, Walk-In