React 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).

Role Overview

As a Senior Frontend Developer, you will be at the forefront of developing high-quality mobile applications using React Native. This role requires a comprehensive understanding of cross-platform development, UI/UX design principles, in-app purchases, and state management. You will work closely with our backend team, designers, and product managers to deliver seamless and responsive applications that meet global market standards.

Key Responsibilities

• Lead the development of mobile applications using React Native, ensuring cross-platform compatibility and responsiveness across devices.
• Collaborate with the design team to implement intuitive and user-friendly UI/UX designs.
• Integrate in-app purchases, Firebase services, dynamic links, and develop custom features to enhance user engagement.
• Manage application state effectively using state management libraries and best practices.
• Oversee the app deployment process, including release management, to the App Store and Google Play Store, ensuring compliance with their guidelines.
• Work with the team to identify and resolve performance issues and optimize application for speed and scalability.
• Work on animations and UX of applications for both IOS and Android.
• Stay updated with the latest trends and technologies in mobile development to continuously improve app functionality and user experience.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in frontend development, with significant experience in React Native and cross-platform mobile app development.
• Strong portfolio demonstrating expertise in UI/UX design and in-app purchases integration.
• Extensive experience with Firebase, including dynamic links and other backend services.
• Proven track record of managing app releases, including deployment to the App Store and Google Play Store.
• Excellent problem-solving skills, attention to detail, and the ability to work in a fast-paced, team-oriented environment.
• Strong communication skills, with proficiency in English.
• Attach the link of mobile application worked on till date

Why Join Us?

• Opportunity to lead a cutting-edge project impacting users globally.
• Work in an environment that fosters innovation, collaboration, and professional growth.
• Competitive compensation, comprehensive benefits.

Desired Experience

3+ years

Job Description

What You’ll Do

• Taking an active role in architecting the solutions we build
• Designing and implementing web applications using JavaScript and its frameworks (i.a. React, Vue, Angular), HTML5 and CSS3
• Working closely with the dispersed development team, client, and project manager in SCRUM methodology
• Ensuring that programming practices and code quality are respected
• Supporting other engineers with your expertise when needed (knowledge sharing)
• Leading your colleagues’ growth and development

What you bring to the table

• 3+ years of Experience with React. Good to have a working knowledge of React Native, Angular, VueJS
• Strong expertise with HTML, CSS, and writing cross-browser-compatible code.
• Good understanding of AJAX and JavaScript DOM manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Hands-on and implements complex React modules
• Able to implement automated testing platforms and unit tests
• Understanding of fundamental design principles behind a scalable application
• Proficient understanding of code versioning tools (Git)
• Critical thinker and problem-solving skills

Bonus if you have…

• Experience with Angular2+ and Node
• Experience with AWS or GCP infrastructure
• Curiosity about new languages, libraries, frameworks
• Contributions to open-source projects
• Experience with Selenium, or Jest or similar front end test frameworks

Description

Quantive is seeking an incredible Junior Frontend Engineer (Angular) with 1-2 years of relevant experience to join our growing team!

Quantive, formally Gtmhub, exists to make people successful by helping them achieve ambitious goals. We act on this by providing strategy execution solutions that help companies win. Our vision is that, one day, every company, regardless of size or resources, can achieve more than they ever thought possible.

We are honored to support over 500,000 users across 75 countries and 1,000+ organizations including Red Hat, Adobe, Societe Generale, and TomTom. We've raised over $160 million in funding, including our most recent Series C led by Index Ventures, and our global team is growing fast.

We are looking for a super-smart, innovative, and over-achieving Junior Frontend Engineer (Angular) with a passion for building solutions to customer’s biggest issues.

You will own the development of our most complex solutions and you will be responsible for building tools, apps and best practices to help the Technical Success team to scale and mature the delivery of our technical services to customers.

The successful candidate will be a strongly self-motivated and driven individual who is goal-oriented, methodical, and tenacious, and can effectively interact with a team.

As a Junior Frontend Engineer (Angular), you'll:

• Partner with Technical Success Managers to deliver technical solutions to customers
• Create custom UIs for Quantive's data using HTML, CSS, Javascript and Angular best practices
• Cooperate with web designers and Technical Success Managers to match visual designs
• Continually explore new ways to improve our solutions
• Be responsible for maintaining, expanding, and scaling our technical services offering
• Gathering and refining specifications and requirements for customer solutions based on technical needs
• Build and maintain tooling for all things customer related
• Develop and maintain reports and apps for the Quantive Marketplace

To be successful in this role at Quantive, you'll need to have:

• Previous experience in web programming
• Ability to speak English at business level
• In-depth knowledge of HTML, CSS and Javascript
• Experience with Angular and/or TypeScript
• Proficiency in SQL
• Knowledge of other programming skills is an advantage
• BA/BS degree in Computer Science or related field

What's in it for you:

• Competitive base salary and bonus opportunities.
• Quarterly bonus opportunities (up to 25%)
• Employer-covered supplementary medical insurance
• Access to 5,000+ Udemy courses for ongoing learning and development
• Stock option opportunities
• MAC or PC of your choice
• Flexible working hours and leave policy.
• A truly flexible, trust-based, performance-driven work culture.

Senior UI Developer

Looking for a highly skilled/ Experienced Candidates in Frontend Programming & who is comfortable in dealing with Backend tools.

Key Responsibilities

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 ReactJS 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.

An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.

6 to 9 years of strong design and development experience in building massively large-scale distributed internet systems and products.

Previous experience working as a React.js Developer.

In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.

Strong experience using a client side MVC framework such as NodeJS, ReactJS, Redux.

Experience with user interface design.

Knowledge of performance testing frameworks including Mocha and Jest.

Experience with browser-based debugging and performance testing software.

Experience in responsive design, cross browser compatibility and website performance.

Knowledge of frontend CSS frameworks like Bootstrap, Material UI and preprocessors like SASS and LESS.

Experience with handling Services, RESTful, APIs (NodeJS preferably).

You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to Engineering Head and working closely with the Architect and other leads.

We are

A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls and Compass. Xoxoday works with over 1000 global clients. We help our clients in engaging and motivating their employees, sales teams, channel partners or consumers for better business results.

Xoxoday is a horizontal rewards & incentive infrastructure platform to solve problems around employee rewards and recognition, channel incentives, sales incentives, and consumer promotions.

Xoxoday (pronounced “zo-zo-day”) is a one-of-a-kind all-in-one engagement and motivation platform that has been empowering organisations across the globe to improve business efficiency, productivity, performance while optimising costs in employees, sales, channel, and consumer engagement. Founded in the year 2012 by Manoj Agarwal, Abhishek Kumar, Sumit Khandelwal and Kushal Agrawal, Xoxoday offers a powerful platform for organisations to align their users with motivation triggers – both extrinsic and intrinsic – and achieve tangible business outcomes. Xoxoday’s robust technology platform includes three highly scalable, easy to use, plug-n-play products. These platforms help organisations to motivate and engage their employees, distributors, dealers, contractors, freelancers, sales teams, survey panellists and more.

Requirements : 

a) CSS / Bootstrap : Flex Layout/ability to demonstrate the cascading nature of CSS clearly with example/Positioning.

b) Pure JavaScript: Prototype chain and inner workings of inheritance in JS. Understood DOM, Events, Event Bubbling, and Capturing/ ability to demonstrate it with example/ Promises and their use cases.

c) TypeScript: Basic understanding of using TS. Union Types, Index Signatures,

d) REST: Backend experience. REST principles, URL structures for APIs. integration using native JS (fetch and Promises) and in Angular. use cases of getting vs POST vs PUT vs PATCH.

e) Angular :  Abstractions of Angular Component, Service, Pipe, Directive, Module, Lifecycles. Knew advanced patterns as well Dynamic Components, Content Projection, Reactive Forms, ViewChild, ContentChild. Understood Observables and various operators demonstration of Design Skills ability to create the component and module hierarchy for a moderately complex application, along with their interactions

• REQUIREMENTS

  • Write hand-coded HTML5, JS, and CSS(SCSS) that is thoroughly standards-compliant.

  • Solid Javascript experience.
    -WordPress Must needed
    -Experience designing and developing responsive design websites

  • Knowledge of modern authorization mechanisms, such as JSON Web Token

  • You know how to architect all components of a frontend project

  • You have experience reading API documentation and working with different endpoints to compose the desired effect

  • You know how to run projects through solid processes (things like code reviews, reviewing stories, planning)

  • Ability to understand business requirements and translate them into technical requirements

  • Picks up new technologies quickly and efficiently

  • Uses Git effectively

  • Know how to create tests and why it's important

  • Knowledge of OOP and software design principles

  • You know how to optimize frontend load times, debug rendering issues, and overall provide a smooth experience to the user.

  • Knowledge of responsive frontends

  • You don't have to be an expert in backend tech, but you'll need to understand how to integrate with the backend guys.

  • Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform

• WHAT do WE expect?

  • Someone who is comfortable taking on multiple projects at the same time, juggling tasks.

  • Experience of working in and collaborating with teams

  • Should take ownership of tasks.

  • Acumen. You must be able to think and judge multiple solutions for a problem and be able to reason between them.

   

  GOOD TO KNOW

  • Experience in Linux and command-line interface.

  • JS/Webpack/Browserify.

Frontend Developer - React JS/progressive Web App (2+ yrs experience)

Experienced in developing applications using Javascript, ReactJS, AngularJS, NodeJS, HTML5, CSS3/CSS4 and other UI technologies.
Experience in building rich PWA applications.
Understanding and experience with asynchronous processing, partial page refresh, DOM traversal and manipulation 
Deliver across the entire app life cycle - concept, design, built, deploy, test
In depth data structure and algorithm developement experience