Rajesh Yadav - Backend Engineer | ContraWork by Rajesh Yadav

Rajesh Yadav

Full Stack Software Engineer | React, Next.js, Node.js & DB

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Delhi, India

Work Posts About

Delhi, India

Cover image for Inventory management system.
Designed a powerful

Inventory management system. Designed a powerful admin dashboard for shoping software to manage products (add/edit/delete), monitor orders, track revenue, and handle inventory with Cloudinary image uploads.

Cover image for Full-Stack E-commerce Platform with Razorpay

Full-Stack E-commerce Platform with Razorpay integration. Technologies: MongoDB, Express.js, React.js, Node.js, Razorpay, Cloudinary, Vercel • Developed a full-stack clothing e-commerce platform using MongoDB, Express, React, Node.js, with secure JWT-based authentication for users and admins. • Enabled users to browse products, add to cart, select size/color, manage addresses, and complete pa yments via R azorpay integr ation. •Built a responsive and intuitive checkout flow with login guard, address management (add/edit/delete/set default), and order tracking post-purchase.

Cover image for Study tracking and resource sharing

Study tracking and resource sharing platform Technologies:Tailwind CSS,Node.js,TypeScript,HTML,CSS,JavaScript, Google Drive API • Implemented Google Drive integration for document storage. • Enabled preview/download of semester-wise study content. • Designed a user-friendly interface for easy navigation.

Cover image for Smart Expense Tracker with UPI

Smart Expense Tracker with UPI Payment Requests Developed a full-stack expense management application that helps users track their daily income and expenses while making it easy to settle payments with friends. Key Features Add, edit, and categorize daily expenses and income. Dashboard with spending insights and transaction history. Send payment requests directly to friends. Friends can accept or decline payment requests. On acceptance, users are redirected to their preferred UPI application (Google Pay, PhonePe, Paytm, BHIM, etc.) to complete the payment. Optional decline message to communicate the reason for rejecting a request. Real-time request status updates. Secure user authentication and authorization. Responsive design for desktop and mobile devices. Tech Stack Frontend: React.js / Next.js Backend: Node.js & Express.js Database: MongoDB Authentication: JWT / Passport.js Payment Integration: UPI Deep Linking APIs: RESTful APIs This project simplifies personal finance management and makes peer-to-peer expense settlements fast, transparent, and user-friendly.