Reactjs 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).

What you need to have:

ROLES AND RESPONSIBILITIES

• Build an advanced e-commerce admin dashboard application for our platform.
•  Proven working experience in React JS app development and experience with Web packs and integration with NodeJS.
•  Good understanding of Hooks and Redux State Management tools.
•  Understanding of React Design principles and architecture patterns.
•  Collaborate with cross-functional teams to define, design, and ship new features.
•  Work with outside data sources and APIs like the one of Unicommerce.
•  Create Unit-test code for robustness, including edge cases, usability, and general reliability. Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new maximizegies to maximize development efficiency.
• Translate designs high-quality into high quality code.
•  Have a good understanding of CI/CD tools (any).
•  Robust knowledge of popular databases like MongoDB, Elastic Search, DynamoDB, Redis etc;
•  Knowledge about AWS Amplify is super plus.

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• CANDIDATES MUST HAVE
  
  
• · React JS, Redux
• · Hooks and redux state management
• · React design principles
• · Architectural pattern
• · Unit test code
• · High-level design
• · Ci/cd tool
• · Elasticsearch, DynamoDB, Redis
• · AWS amplify
• · ES6/ ECMAScript, JavaScript,
• · NodeJS ,IDEs, Restful API’s , Git

REQUIREMENTS

• Bachelor’s degree in computer science, software development, engineering, or a related technical field
• Proficient with the latest versions of ECMAScript (JavaScript) as well as HTML and CSS
•  Knowledge of React and common tools used in the wider React ecosystem, such as Node.js and npm
•  Familiarity with common programming tools such as Redux, IDEs, RESTful APIs, Git repositories, TypeScript, version control software, and remote deployment tools
•  An understanding of common programming paradigms and fundamental React principles, such as React components, hooks, and the React lifecycle

We are looking for a senior React.js developer who can guide the current team and also work on our project. The requirement could be for 3-4 months or at max 6 months. Hence a full-time remote consultant is preferred with about 4-5 years of experience in React.

This position is for a ReactJS developer. Since we are a start-up this position will have a lot of exposure to other verticals such as product management as well. There is no limit to learning for a person who is willing to take responsibility.

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Prior experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with more current specifications of EcmaScript
• Prior experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Familiarity with HTML / CSS
• GIT experience is a plus
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools

• Coding and debugging pure JavaScript, polyglot and multi-lingual applications.
• Working closely with Technical Lead/Project Manager to ensure development timelines are met.
• Contribute with ideas to improve system design or streamline product delivery.
• Working with challenging applications involving Real Time Data.
• Working on different platforms including the usage of the Native SDKs provided on JavaScript.

• Strong experience in developing applications using Javascript and Jquery.
• Minimum 6 months of experience in React.JS is a must.
• Experience in any other Javascript libraries is an added advantage.
• Create different types of Charts and Graphics with the help of HTML5 Canvas, SVG etc.
• Should possess understanding of UI design and its behavior across devices (desktops to smart phones).
• Good to have worked with APIs exposed by social media sites like Facebook, Twitter, Instagram etc.
• Experience in working with data structures such as XML and JSON.
• Added knowledge of mobile development frameworks like jQuery Mobile is an added advantage.
• Good communication and problem-solving skills.
• Should be a self-starter and should have the ability to work under pressure.
• Should be passionate about sports.