• Migrated e-commerce web app from React.js(class components) to Nextjs12, used styled components for creating reusable design library for app. In subsequent upgrade to Nextjs14, updated design library to Tailwind CSS improving performance. Key tasks include optimization and many feature addition of Product details page. Added Product listing page by combining it with Contentful to able easily control page content, redirections etc. Extensively used Nextjs features including all renderings, Images, Scripts Font Optimizations etc. Implemented Context API for state management. Created homepage with ISR, made it controllable from Contentful allowing easier content update. Created modified React Side Image Zoom library and PageLoadingBar library for Nextjs featuring. Added React Hook Form across ap with custom validations like phone number with country code, zip and credit card (type, expiry and CVV code). Implement google places for auto address filing in checkout. Implement optimized folder structure, incorporating nested child folders for better organization and readability. As the frontend team lead, trained juniors in Nextjs 14 migration, ensuring pixel-perfect designs and clean, maintainable code.• In another significant project, I wrote test cases for whole backend app. My primary responsibility was writing extensive test cases for the GraphQl queries and mutations. Using Jest, I implemented comprehensive unit tests and flow tests across the application, to improve code quality and reduced bugs. • I worked on our store dashboard, used for full product managing, their inventories, locations etc. I turned desktop app to fully mobile responsive app with Material UI and styled components. Worked on many other bugs/minor featuring including different view for new listings and enabling filters, suggestion and downloading those listing as csv file and emailing it your user email.

Performed shopping bag optimization tasks of E-Commerce Clothing store app including logs creation for every outgoing browser requests and incoming response, saving logs to splunk, creating alerts and emails incase some specified event occurs in log, code-refactoring, creating multiple loyalty service flags, testing Loyalty program outcomes and other team members PRs.

• Developed a Real State Property app with two modules of admin and user. and with property creations, property approving by admin, available properties, media uploading and their interactions, adding other users as friend, notifications and users chats using Next.js. Also, deployed the app to Vercel and AWS amplify.• Developed Clinical Practitioner app with 4 different modules of admin, agent, doctor, patient, with appointments for videocall and in-clinic appointments, appointment approval, online prescriptions, online medicine facility, online lab tests, labs and pharmacy additions and approvals, blogs creations and user chat support.