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.

Strands vs. LangChain: Choose the Execution Model, Not the Agent Loop

Building an MCP Server for Vancouver’s Open Data

The Agentic Stack on AWS: Notes for AWS Certification

The Guardrail Stack for Bedrock: Notes for AWS Certification

Deploying a Machine Learning Project with AWS CloudFormation

Fine-Tuning LLMs: LoRA to AWS Bedrock

vLLM in Practice: Why and How to Self-Host LLM Inference

A Local-First RAG Chat App, Built to Migrate to AWS on Day One

Bedrock AgentCore: One Runtime, Any Multi-Agent Framework

REST vs GraphQL vs WebSocket in Python

Watermarking Libraries: A Practical Guide

LoRA Fine-Tuning Llama 3 8B for Legislative-Style Summaries

Eight Ways In: Notes for AWS Certification

Google News RSS Radar: Collecting News Into MongoDB for Search and Trend Analysis

The Transformer Pipeline, Shape by Shape

Document Retrieval at Scale: OCR, YOLO, and French BERT for a Technical Archive

Elasticsearch Under the Hood: Text Search, Filtering, and Running It in Production