Problem

Production websites often contain useful knowledge that is difficult for users to search or query conversationally.

Solution

A FastAPI service using LangChain, ChromaDB, sitemap and deep crawling, and structured retrieval to support grounded question answering across multiple production websites.

Responsibilities

• Built crawling flows for sitemap and deep website traversal.
• Integrated LangChain retrieval workflows with ChromaDB.
• Designed FastAPI service boundaries for production website usage.
• Structured knowledge retrieval to keep answers grounded in indexed content.

Achievements

• Used across multiple production websites.
• Supported sitemap and deep crawling workflows.
• Grounded question answering in approved website content.

Technologies

• Python
• FastAPI
• LangChain
• ChromaDB
• Web crawling
• Retrieval-augmented generation