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mani vannan

mani vannan

Frontend Developer

Chennai
80
Profile Score

About

Frontend Developer with 3.7+ years of experience in designing and developing scalable, high-performance web applications using React.js, JavaScript (ES6+), Redux Toolkit, and GraphQL. Seeking to contribute strong expertise in component-based architecture, RESTful API integration, responsive UI development, and performance optimization to build user-centric and business-driven solutions.

Skills & Expertise (30)

React.js Advanced
8.3/10
3.7
Years Exp
JavaScript (ES6+) Advanced
8.1/10
3.7
Years Exp
Redux Toolkit Advanced
7.8/10
3.7
Years Exp
Typescript Intermediate
7.5/10
3.7
Years Exp
Jest Performance React Testing Library Chrome DevTools Postman Webpack Babel Git SVN Mobile-First Design Cross-Browser Compatibility FlexBox CSS Grid Event Handling Async/Await Promises Fetch API Axios GraphQL Ajax RESTful APIs jquery MUI (Material UI) bootstrap CSS3 HTML5

Work Experience

Frontend Developer

Apzzo Technologies Pvt. Ltd.

Jan 2022 - Jul 2022

Created dynamic admin panels using React Table with full CRUD operations. Converted Figma designs into production-ready, responsive UI components. Built reusable UI components, reducing duplication by 40%. Migrated class components to functional components using hooks. Consumed backend APIs to enable dynamic data rendering and state updates. Implemented WebSocket / Socket.IO for real-time updates and notifications. Developed asynchronous data flows using Promises, Async/Await, Axios, and Fetch API. Enforced coding standards using ESLint, Prettier, and TypeScript best practices. Refined build performance using Webpack and Babel. Integrated GraphQL and AJAX-based API communication to improve data-fetching efficiency and UI responsiveness. Optimized backend communication and reduced latency through improved API architecture.

Frontend Developer

Perpetuiti Technosoft Pvt. Ltd

Dec 2022 - Jul 2025

Designed reusable custom hooks for API calls, debounced search, and global event management. Developed pixel-perfect, responsive, cross-browser UI using CSS3, Bootstrap, and Material UI. Built reusable component libraries to maintain consistent UI across projects. Enhanced application load time by 25% through lazy loading, code splitting, and prefetching strategies. Boosted UI responsiveness using React Suspense, route-based chunking, and performance profiling. Applied skeleton loaders and shimmer effects to enhance perceived performance. Created modular Axios interceptor-based API architecture for scalable request handling. Executed secure encryption and decryption workflows in the application. Integrated biometric authentication fallbacks (Face ID, OTP). Developed DR Scheduler Calendar with real-time sync and drag-and-drop functionality. Led unit testing efforts with Jest and React Testing Library, achieving 90%+ test coverage. Performed deep debugging and performance analysis using React and Chrome DevTools. Worked closely with design and backend teams to convert business requirements into user-friendly interfaces.

Education

B.E. Mechanical Engineering - Mahalakshmi Engineering College

2014 - 2018 · Afghanistan

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 10/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 5/15
💰 Rate 0/5
🏆 Certs 0/5
Verified 5/5
Total Score 80/100

Profile Overview

Member sinceMar 2026

Skills (30)

React.js JavaScript (ES6+) Redux Toolkit Typescript Jest Performance React Testing Library Chrome DevTools Postman Webpack +20 more