Building a Multi-Tenant AI Document Platform on AWS (Part 1: Architecture)

Building a Multi-Tenant AI Document Platform on AWS (Part 1: Architecture) How I designed a production-ready RAG system from scratch using AWS-native services — and kept the monthly bill under $20. Every senior full-stack role I see right now lists "AI experience" somewhere in the requirements. The problem is that most AI portfolio projects look the same: a Next.js frontend, a call to the OpenAI API, maybe a LangChain wrapper. They're fine demos, but they don't show anything about how you'...