I'm Gabriel, an AI Solutions Architect and Microsoft Certified Azure Solutions Architect Expert. I design cloud systems for a living, lately focused on AI agents, enterprise RAG, and the infrastructure that keeps them running.

On gsantana.dev I share what I learn: hands-on posts with real code, the architecture principles behind my decisions, CertLabs study notes for Azure certifications, and AI news with an engineer's take. Everything is free, in English and Portuguese, with no ads and no paywall. My projects, like AgenticMesh and Sightline, are open source.

Each post takes days of building and testing before I write a line about it. If something here saved you time, fixed a bug, or helped you pass an exam, a coffee keeps the next one coming. Thank you for reading!