05—AI system
RAG Decision Assistant
A retrieval-augmented system for querying risk documents in real time and supporting automated decisions.
- Year
- 2025
- Discipline
- AI system
- Stack
- Python, LangChain, AWS Lambda, RAG, Llama 3 / GPT

ServerlessAuto-scaling on AWS Lambda
01Problem
Risk decisions depended on dense documents that people had to read and cross-check by hand.
02Build
Documents are embedded for vector search. LangChain orchestrates retrieval and generation with Llama 3 or GPT. It runs serverless on AWS Lambda behind API Gateway, scales automatically, and sits behind enterprise-grade authentication.
03Outcome
Answers grounded in the source documents, available on demand instead of after a manual review.