"Let's go Lego" is an e-auction site specially designed for LEGO enthusiasts. This project was developed as part of my training to practice and perfect my web development skills. Our platform offers a variety of LEGO products, ranging from classic sets to limited editions, including rare collector pieces. Users can sign up, bid on their favorite items, and track their bids in real-time, thanks to an intuitive and user-friendly interface. To realize this project, we used the MERN technology stack, consisting of MongoDB, Express.js, React, and Node.js.