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).

Job Location - Hyderabad & Ahmedabad

Skills required – Angular, ionic

What you'll do:

• Perform complex application programming activities with an emphasis on mobile development:  Angular, ionic, Node, TypeScript, JavaScript, Apache Cordova, RESTful APIs and more
• Assist in the definition of system architecture and detailed solution design that are scalable and extensible
• Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible
• Own the quality of code and do your own testing. Automate feature testing and contribute UI testing framework
• Become a subject matter expert for our mobile applications
• Deliver amazing solutions to production that knock everyone’s socks off
• Mentor junior developers on the team

What we’re looking for:

• Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.
• A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.
• A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.
• Confidence, not ego. You have an ability to collaborate with others and see all sides of the coin to come to the best solution for everyone.
• Flexible and willing to accept change in priorities, as necessary

Preferred Qualifications:

• Proficient with Apache Cordova framework
• Built or maintained custom Cordova plugin
• Demonstrable knowledge of native coding background in iOS
• Understanding of Apple certificate and profile management
• Experience developing and deploying applications within Kubernetes based containers
• Experience in Agile and SCRUM development techniques

React JS Developers

Experience: 3-6 Years

Location: Bangalore (onsite)

Responsibilities:

Design and implement user interface components for JavaScript-based web applications

using React JS

 Work as a part of a small team that includes other react JS developers, designers, QA

experts, and managers

 Build app and UI components from prototypes and wireframes

 Built REST APIs for tight integrations with the Backend

 Write automated tests to ensure error-free code and performance

 Improve front-end performance by eliminating performance bottlenecks

 Create front-end modules with maximum code reusability and efficiency

 Work with third-party dependencies and APIs

 Work with Redux architecture to improve the performance of the websites/mobile apps

 Coordinate with the cross-functional teams to build apps in the stipulated time/budget

 Knowledge of TypeScript 

 Knowledge of HTML, JavaScript, CSS, Bootstrap

 React routing, React Hooks, Internationalization

About us:

HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.

We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.

To know more, Visit! - https://www.happyfox.com/

We’re looking for an experienced Frontend Engineer to join our growing engineering team to help build and maintain HappyFox’s product offerings.

What you can expect as a Frontend Engineer at HappyFox:

• You will implement product features by writing clean, robust, reusable code with tests.
• You’ll work alongside the Product, Design, and, Backend Engineering teams to iterate on new features within HappyFox products.
• You'll help improve the overall experience of our product by improving the quality of the front-end features.
• You’ll help identify areas of improvement in the codebase and initiate projects to make HappyFox better.
• You’ll contribute to and follow our workflow process, alongside the rest of the Engineering team.

You should apply if:

• You have at least 3 years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
• You have a sound knowledge of HTML, CSS, and JavaScript.
• You have experience building single-page web apps and a good understanding of best practices in front-end development.
• You have experience in reviewing other team members' code and providing actionable comments.
• You have experience in following industry-standard coding practices.
• You have experience optimizing code and looking for ways to resolve performance issues.
• You are passionate about solving complex technical problems and troubleshooting issues.

DISPRZ is looking for a Software Engineer who will deliver individually on features / enhancements under our products, as laid out as per the company’s product delivery roadmap and own responsibility for their technical integrity, scalability and trouble-free deployment to the customer.

• Build and ship reliable software practicing robust software design and in-depth code reviews.
• Build efficient, clean and reusable features / libraries / components
• Collaborate with our design and product teams on defining and delivering new features to ensure a great experience for our users.
• Analyse and optimize existing UI and Server-side code for security, efficiency and performance.
• Be a voice in ensuring the team stays true to the technical vision.
• Write clean, scalable code in Web-based programming languages and/or .NET
• Write SQL Stored Procedures
• Test and deploy applications and systems
• Collaborate with technical lead to produce software design and architecture
• Translate designs and style guides provided by the UI/UX team into functional user interfaces, while ensuring cross-browser compatibility and performance. 
• Unit-test the code across platforms and browsers, to ensure functional consistency of delivered output. 

• Engineering / MCA degree from a top school with an excellent academic record
• Object oriented programming knowledge is a must.
• High level of Proficiency in Web-based technologies – JavaScript, HTML/CSS
• Knowledge of any one JS framework like Reactjs, Angular, or the like, is a plus
• Formal knowledge in below areas will be an added advantage
  • NET MVC
  • Entity Framework Core/LINQ.
  • Bootstrap framework
  • SQL Databases

• Minimum 5 years’ experience in front-end development of software products using Web-based technologies
• Experience doing Full-stack development is a great plus

• Excellent planning, organizational, and prioritization skills
• Excellent analytical, troubleshooting and communication skills
• Ability to work under pressure and meet deadlines
• Ability to think ahead and anticipate problems, issues and solutions
• Work well as a team player and help the team members to resolve issues
• Be committed to quality and be structured in approach
• Excellent and demonstrable concept formulation, logical and analytical skills
• Create intuitive interfaces with great functionality in a timely manner.
• Be passionate about writing neat and clean code. 
• Document the work and communicate any issues as and when they arise. 
• Assist in troubleshooting any production issues.

Chennai / Mumbai

The Role

We are looking for full-stack developers with experience in building user interface components for serverless applications using React. 

The role involves working with the product management team, understand the business requirements, and take full responsibility of design, development, test and release of the applications. 

Requirements:

• Passion for building and delivering great software with a strong sense of ownership. 
• 2+ years of experience in building web applications using React with strong CSS skills.
• Independently develop new user-facing features from designs and wireframes
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Experience with popular React.js workflows (such as Flux or Redux)
• Building reusable components and front-end libraries for future use

Good to have:

• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Knowledge of AWS platform and scalable application architecture
• Experience with Build and Release, Agile processes and Estimation/Planning
• Knowledge of CSS pre-processors like SCSS and LESS