OldMarket

OldMarketJKT is a full-stack e-commerce platform for buying and selling second-hand jackets, built with React, TypeScript, Node.js, Prisma, PostgreSQL, and Supabase. Developed the backend, including API development, data management, and database integration, while also implementing an AI-powered product recommendation system using Machine Learning, user-based Collaborative Filtering, Nearest Neighbors, and Cosine Similarity to recommend products based on similar user purchasing behavior.