React.js Developer

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).

Looking for candidates only with tier 1 colleges OR have a minimum 1yr of experience in a product-based company.

The primary role is a Frontend software engineer, designing and building user-friendly and intuitive applications
You will be involved and drive product & design discussions.

Desired Skills
● Minimum 1+ years of coding experience.
● Proficiency using modern web development technologies and techniques, including HTML5, CSS, JavaScript, etc.
● Knowledge of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
● Programming experience with at least one modern framework such as ReactJS or VueJs.
● A strong product design sense.
● Understand end user requirements, formulate use cases and come up with effective solutions.
● Good understanding of REST APIs and the web in general.
● Ability to build a feature from scratch & drive it to completion.
● Excellence in technical communication with peers and non-technical cohorts.
● Ability to learn and work independently and make decisions with minimal supervision

What are the Key Responsibilities:

• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates.

What are we looking for:

• Bachelor’s degree in computer science, information technology, or a similar field.
• Previous experience working as a react.js developer.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills

• Collaborate with product, design, and other engineering teams to brainstorm and resolve complex problems.
• Ensure the quality of code is up to the highest standard of readability, conciseness, efficiency, modularity, and extensibility.
• Experience with the entire Software Development Life Cycle (SDLC)
• Solid communication skills: Demonstrated ability to explain complex technical issues to both technical and non-technical audiences
• Talking to customers and business teams to suggest improvement areas in product flows.
• Create peer learnings for team members and build context for new teammates
• Help with building the company's tech team and iterating on the hiring framework.
• Provide regular feedback to your team (peers and managers) to ensure continuous improvement.
• Keeping abreast with the latest technologies and working on your skills regularly.

Must-haves

• At least 3 years of experience working in frontend for desktop and mobile web.
• Familiar with design tools and convert them to actual code (HTML+CSS+JavaScript)
• Mastery in DOM Manipulation (including Jquery) and understand components, CTAs.
• Well-versed in other non-vanilla languages (ex. TypeScript)
• Well-versed in standard frontend framework (ex. ReactJS)
• Understanding of GraphQL APIs.
• Deep understanding of web technologies in various mobile systems
• Have empathy for the users you build for

Good to have

• Experience in the fintech industry
• Experience leading design and implementation of robust and secure web services.

• You have 4-8 years of experience  in Frontend for web based applications with strong understanding of HTML, CSS, JavaScript, Frameworks like Angular  or React
• You love building things, and have built complex consumer web applications in the past.
• You have a sound understanding of data structures and algorithms.
• You are an expert in HTML, CSS, JavaScript and jQuery.
• You are an expert in at least one JavaScript framework, such as Angular 7+, React or Vue.
• You understand how website-backend interacts with frontend as well as external APIs.
• You enjoy mentoring others and helping them solve challenging problems.