RAG-Powered AI Chatbot Platform for Small Business Automation

Developed a full-stack RAG-powered AI chatbot platform that enables businesses to build intelligent, data-driven assistants using their own PDFs and FAQs. Designed and implemented the complete system using React, TypeScript, Node.js, Express, PostgreSQL, Drizzle ORM, and pgvector for semantic search and accurate information retrieval. Integrated multiple LLM providers, including OpenAI, Gemini, and Groq, and created an embeddable chatbot widget for seamless website integration, providing a scalable and customizable solution for business automation.