AI invoice processing platform and my most significant build. An event-driven email ingestion pipeline (SES → S3 → Lambda, SQS between services): Lambda processes XML invoices directly while images and PDFs route to a Python AI server that extracts invoice data via the ChatGPT Responses API with custom-engineered prompts. Next.js on Vercel, NestJS and Flask/FastAPI each on EC2 with Nginx.
- Next.js
- NestJS
- Flask/FastAPI
- AWS
- ChatGPT API