Senior Mern Stack developer

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.

We are looking for a Frontend Engineer who is passionate about building clean, performant, and intuitive user interfaces.

This role is ideal for someone who has expertise in React and Next.js, enabling you to architect and build scalable, high-performance, and user-centric web applications. You will leverage modern frontend patterns to deliver clean, maintainable, and production-grade interfaces.

• 1-2 years of work experience with JavaScript
• 1-2 years of work experience with React.js/Next.js

Apply with : https://app.skillbrew.ai/jobs/?id=93

Responsibilities

• Take ownership of frontend features from development to release
• Build responsive, reusable, and high-quality UI components using React / Next.js
• Convert designs into production-ready code with clean and maintainable standards
• Collaborate with backend engineers and designers to deliver features
• Integrate frontend applications with backend APIs, ensuring secure and efficient data flow
• Optimize component rendering, state management, and overall UI performance
• Implement lazy loading, code splitting, and caching strategies to improve Core Web Vitals
• Debug and fix cross-browser and cross-device UI issues
• Apply frontend security best practices (XSS, CSRF, secure input handling, authentication flows)
• Contribute to frontend architecture decisions for scalability and maintainability
• Continuously improve UI/UX based on feedback and analytics

Job Requirements / Skills

• Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience
• 1–2 years experience building modern frontend applications
• Strong fundamentals in HTML, CSS, JavaScript, and OOP concepts
• Hands-on experience with React.js / Next.js and state management
• Understanding of performance optimization, accessibility, and security best practices
• Familiarity with REST APIs and frontend-backend integration
• Problem-solving mindset with attention to detail
• Strong ownership, collaboration, and communication skills
• Eagerness to learn new technologies and contribute to product vision

About Us

Rezo.ai is an AI-Powered Contact Center that enables enterprises to enhance customer experience and boost revenue by automating and analyzing customer agent interactions across multiple channels including voice, email, chat/WhatsApp, and social, at the required scale, whilst training agents with minimal costs

How do we do it

Rezo’s AI-Powered contact center leverages groundbreaking technologies in AI, ML, ASR, NLP, RPA, and predictive intelligence to transform customer experience and reduce costs by automating, and analyzing customer-agent conversations across multiple channels including voice, email, chat/Whatsapp, and social media, whilst coaching them. 

Job description

We are looking for a great React/Redux Developer proficient with JavaScript. Developers' primary focus will be on developing user interface components and implementing them following well-known React.js workflows.

Responsibilities

• Responsible for the development of a new highly responsive, web-based user interface
• Construct visualizations that can depict vast amounts of data.
• Work and collaborate with the rest of the development team
• Work with the product team, backend team and server teams.
• Learn and understand user interactions and develop a flexible and well-structured front-end architecture, along with the APIs to support it.
• Developing new user-facing features using React and Redux
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
• Good time-management, interpersonal and communication skills.
• A natural inclination toward solving complex problems, Impulse to learn and master new technologies and curiosity to find new and unusual ways of how to solve various technical issues.

Desired Qualifications and Key Skills

• Bachelor’s degree in computer science, software/computer engineering or an equivalent degree from Tier 1 College is a Plus
• Prior Experience with a Product Based Company is a Plus.
• Should have 3+ years of hands-on experience in configuration, coding, testing and deploying web-based applications in React
• Working in an agile environment with agile methodologies is a must and having Git knowledge is an advantage.
• Should be able to work with designers to transform wireframes into Screens.
• Should be able to integrate screens to business logic and architect database schema to ensure complete design.

Cultural fitment 

Work at the heart of AI and customer engagement.

If you are fascinated by AI and looking to work with the latest AI technologies, in a fast growing and flexible work environment with immense growth opportunities, come and join us.

Rezo is the place to be if you want to work in an atmosphere where you can do meaningful research, contribute to the platform, and grow fast.

Culture/Values

We believe that allowing employees to pursue their interests and challenge the existing quo only helps to make Rezo a successful workplace. To that end, we are committed to assisting our employees in enhancing the skills that are vital to their professional growth.

FOCUS, INTEGRITY, TEAMWORK, PASSION, INNOVATION

Why Us?

We are a fast-paced start-up with some of the best talents from diverse backgrounds. Working together to solve customer service problems. We believe a diverse workforce is a powerful multiplier of innovation and growth, which is key to providing our clients with the best possible service and our employees with the best possible career. Diversity makes us smarter, more competitive, and more innovative.

Visit our website: https://rezo.ai/">https://rezo.ai/ for more information

• Experience JavaScript, Typescript, ReactJS, StencilJS, CSS, Bootstrap, CSS, Nginx, Node.JS. Hands on in ReactJS is a must.
• Good to have Gradle/Maven, Git, Log4J, Mockito
• Knowledge of Spring and Java
• Knowledge of AWS platform is a plus

Qualifications:

• Minimum one year of experience in React, Redux 
• Experience with Build systems e.g. Webpack/Grunt/Gulp 
• In-depth knowledge of HTML/XHTML/HTML5 
• Experience with Testing frameworks e.g. Karma/Jasmine/Protractor/Cucumber/Mocha/Jest 
• Experience with interface development toolkits: e.g. Less/SASS 
• Experience with web service integration protocols such as REST & GraphQL 
• In-depth knowledge of Javascript e.g. ES5/ES6/Typescript 
• Strong Knowledge of CSS 3 
• Must be a strong team player 
• Have a good understanding of design and user experience principles. 
• Experience in dealing with cross-browser compatibility requirements 
• Understanding of mobile development best practices (e.g. responsive design, graceful degradation, etc.) 
• Ability to work independently as well as on a team and learn from colleagues 
• Open-minded, flexible and willing to adapt to changing situations 
• Good designing & color combination skills 
• Experience with Git or other version control systems.

• Write, test, debug and ship code and gather feedback on the scale, performance, security to incorporate back into the platform. 

• Work with the founders to identify complex technical problems and solve them. 
• Work with the product design and client experience development team to support 

them with scalable services 

• Feed into the overall mission and vision of the eParchi’s platform over the period of the coming months and years. 

• An ability to perform well in a fast-paced environment 
• Excellent analytical and multitasking skills.