React.js Developer for SaaS based Analytics App

Job Description: React Developer (3–5 Years Experience)

Location: Mumbai

Employment Type: Full-time

Role: Frontend Developer (React.js)

About the Role

We are looking for a highly skilled React Developer with 3–5 years of hands-on experience in building modern, scalable, and responsive web applications. The ideal candidate should be proficient in React.js, frontend architecture, state management, and UI best practices.

Key Responsibilities

• Develop responsive, high-performance web applications using React.js, JavaScript/TypeScript.
• Build reusable components and front-end libraries for future use.
• Work closely with UI/UX designers to convert wireframes and prototypes into functional user interfaces.
• Optimize applications for maximum speed, scalability, and cross-browser compatibility.
• Integrate RESTful APIs and work collaboratively with backend teams.
• Participate in code reviews and contribute to continuous improvement of best practices.
• Troubleshoot, debug, and enhance existing applications.
• Ensure high code quality through proper testing and documentation.

Required Skills & Experience

• 3–5 years of professional experience in React.js development.
• Strong proficiency in JavaScript (ES6+) and TypeScript.
• Hands-on experience with Redux, Context API, or other state-management libraries.
• Good understanding of HTML5, CSS3, SASS, and modern UI frameworks.
• Experience working with REST APIs, JSON, and asynchronous programming.
• Familiarity with build tools like Webpack, Vite, Babel, etc.
• Understanding of Git and version control workflows.
• Knowledge of React hooks, performance optimization, and component lifecycle.
• Experience with testing frameworks (Jest, React Testing Library) is a plus.

Good to Have

• Experience with Next.js or server-side rendering.
• Knowledge of UI libraries such as Material-UI, Ant Design, or Chakra.
• Familiarity with Agile/Scrum methodologies.
• Basic exposure to DevOps tools and CI/CD pipelines.

Why Join Us?

• Opportunity to work on cutting-edge technologies.
• Collaborative, fast-paced, and growth-oriented environment.
• Competitive compensation and employee benefits.

Job Summary:

Core Technical Skills

Strong JavaScript OR TypeScript experience (minimum 2 years)

Angular OR good balance of JS/TS + Angular skills

Understanding of HTTP requests & web technologies

Hands-on project experience in JavaScript ecosystem

Good to have (not mandatory):

Node.js

XPath

Puppeteer

Automation scripting exposure

Coding & Development Skills

Building and maintaining UI components

Writing clean, maintainable code

• Debugging & troubleshooting in production/test environments

Share Cv to

Thirega@ vysystems dot com - WhatsApp - 91Five0033Five2Three

We are looking for a Frontend Developer. As a Frontend Developer, you should be comfortable with Front-end languages, Frameworks, and third-party Libraries. You should also be a team playerwith a a knack for visual design and utility.

Responsibilities:

• Work with development teams and product managers in agile methodology
• Design client-side architecture
• Build the front-end of applications through appealing visual design
• Troubleshoot, debug and upgrade software
• Build features and applications with a mobile responsive design

Requirements:

• Proven experience as a Frontend Developer or similar role.
• Knowledge of multiple front-end languages and libraries (e. g. HTML/ CSS, JavaScript, XML, jQuery).
• Sound Knowledge of ES5 ES6 Javascript Standards
• Knowledge of multiple JavaScript Libraries/frameworks (e. g. React, Angular).
• Knowledge of multiple Global State Management Library (e. g Redux).
• Knowledge of Class-Based Component and Functional Components(Hooks)
• Familiarity with UI/UX design (Mobile Responsive).
• Excellent communication and teamwork skills.

Job Title

Technology Lead – Frontend

Job Responsibilities:

• Collaboratively work with UX team, product managers, back-end engineers and other technical teams to create new, delightful and scalable UI
• Mentor junior members through training and individual support
• Responsible for all front end development on a project
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Identify and troubleshoot UX problems (e.g. responsiveness)
• Conduct layout adjustments based on user feedback
• Adhere to style standards on fonts, colors and images
• Optimize existing user interface designs
• Proactively learn and accordingly apply new technologies, best design practices and usability patterns

The ideal candidate must - 

• 5+ years of experience working with React or React-based frameworks
• Proficiency with browser-based debugging and performance testing
• Proficiency in Git and version control
• Considerable experience with a testing framework (Jest/Mocha)
• Familiarity with RESTful APIs and GraphQL
• Knowledge of modern authorization mechanisms, such as JWT Tokens
• Good understanding of common front-end development tools such as Babel, Webpack, NPM, Yarn etc
• Hands-on experience with CSS-in-JS libraries
• Proficient understanding of cross-browser compatibility issues and ways to work around them
• Keen to learn, mentor and willingness to take ownership of work items
• Possess strong communication and self-accountability

REACT.JS

We are looking for an enthusiastic and skilled SDE 2 React Web Developer to join its dynamic engineering team. As an SDE 1, the developer will be responsible for building and maintaining user-facing features for the web platform using React. The developer will work closely with cross-functional teams to deliver high-quality, scalable, and efficient applications that offer an exceptional experience to Revv's users.

Responsibilities

• Develop responsive, user-friendly, and high-performance web applications using React.js and related technologies.
• Collaborate with product managers, designers, and other engineers to deliver new features and improve existing ones.
• Write clean, maintainable, and testable code, ensuring a high level of code quality.
• Optimize applications for maximum speed and scalability.
• Troubleshoot and debug application issues, ensuring a smooth user experience.
• Stay up-to-date with the latest industry trends and best practices in web development.
• Participate in code reviews and contribute to continuous improvement within the team.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Proficiency in React.js, JavaScript (ES6+), HTML5, and CSS3.
• Experience with state management libraries like Redux or Context API.
• Familiarity with version control systems, primarily Git.
• Knowledge of RESTful APIs and integrating them into front-end applications.
• Strong understanding of web performance optimization techniques.
• Basic experience with testing frameworks like Jest, Mocha, or Enzyme.
• Strong problem-solving skills and ability to work independently and as part of a team.

What You'll Do:

• You will collaborate with a UX/UI designer and other frontend and middle-tier engineers to design, prototype, and build complex cloud-based web applications.
• You will assist other developers with the integration of UI components with backend logic, interface implementation, and troubleshooting.
• Supporting the existing UI is a must, however, there will be plenty of opportunities to create solutions for advanced functionality while making improvements to existing areas of the application, as well as with new features.

What Makes You A Great Fit :

• Hands-on experience with HTML, CSS frameworks, and JavaScript
• Must have an excellent understanding of the browser DOM.
• Firm grasp of lexical scoping, closures, and OO JavaScript.
• Proficient in native JavaScript as well as one or more frameworks/libraries such as jQuery, Ext JS, Backbone.js, ReactJS, Angular 6 and above, etc.
• Proficient with debugging and testing tools to troubleshoot and optimize the UI.
• Understanding of frontend security best practices and XSS, CSRF, e

We are looking for a passionate Sr.Software Engineer to design, develop and maintain the software solutions. The successful candidate will be able to build high-quality, innovative and fully performing software in compliance with coding standards and technical design. The candidate should have working knowledge in the specialist area of

Core JAVA, JSP,Servlet, JavaScript, JQuery/Angular and HTML 5

Spring Boot Framework , Hibernate/JPA,

REST API using the Java,

GIT / GitHub/SVN,

And MySQL/Oracle

Note : JSP,Servlet and Spring Boot is must

Added Advantage

Educational Qualifications: 

BE / MCA

Relevant Experience:

5+ years of work experience.

Working 6 days per week

Behaviors:

We're looking for a React Developer to join our growing frontend team.

As a React Developer, you will help develop the next generation of our apps using tools such as React.js, Redux, Saga, Thunk and Webpack. You should be familiar with React and its ecosystem. Past experience with a React codebase is a requirement.

We're looking for someone who is comfortable with a fast-moving environment and can learn quickly.

• Develop new components and features for our frontend app(s)
• Write, audit, and improve our test coverage
• Document and refactor our frontend codebase
• Profile and improve our frontend performance
• Write about your work and contribute back to open source

While these requirements are a guideline, feel free to apply even if you don't meet some of these.

• 3+ years’ experience working with a Javascript framework, preferably React
• In-depth understanding of Javascript, the DOM, and relevant concepts
• In-depth understanding of Redux/React Hooks/Saga/Thunk
• Proficiency with browser based debugging and performance testing
• Understanding of progressive web apps
• Experience with a testing framework (Jest/Mocha)
• Experience using Git
• Excellent communication skills, both written and verbal