All Posts

Posts on machine learning, data science, and AI engineering by Alexandre DO.

Blog Posts

Explore all my posts on machine learning, data science, and AI engineering.

Exposing the City of Vancouver’s Open Data portal to LLMs through a Model Context Protocol server.

A defense-in-depth model for securing LLM services on Bedrock and AgentCore, from VPC endpoints down to output-side hallucination checks.

Turning a manual, click-through AWS deployment into a reviewable, repeatable CloudFormation stack.

A short, practical walkthrough of fine-tuning a large language model with LoRA instead of full fine-tuning.

A practical comparison of three ways to expose data from a Python backend, with FastAPI examples for each.