AI · Software Engineering · Technology
Building at the edge ofAI and software
I'm Gabriel Santana. I write about applied AI, systems engineering, and the tools shaping how we build software. Notes from the field, not just theory.
Latest posts
View all →AgenticMesh: AI architecture that runs beyond the diagram
How I built a RAG MVP with FastAPI, Celery, Qdrant, Azure AI Foundry, and streaming, and what production still requires.
Idempotency Keys in Practice: Making Payment-Style APIs Safe to Retry
Use idempotency keys to make timed-out POST retries safe from duplicate side effects.
The Strangler Fig Migration Blueprint: Moving a Monolith to the Cloud Without a Big Bang
Migrate a monolith one route at a time, with clear data ownership and a rollback for each slice.
Principles
The architecture principles behind my decisions.
Cost Optimization
One of the most important Architecture Design Principles in systems architecture decision-making. After all, who wants to pay for what they don't need?
20 min read
Operational Excellence
Operations as an enabler of the product and continuous improvement, not as bureaucracy
19 min read
Performance Efficiency
Fast for the user, lean on resources and ready to grow: performance is a requirement you design for, not a miracle you pray for in production.
29 min read
CertLabs
Exam walkthroughs and study notes for technology certifications.
AZ-305 / AZ-104: Private Endpoint or Service Endpoint for Azure Storage?
A simulated exam question on private Storage access: the IP address, not just the traffic path, decides the answer.
AZ-305: migrating SQL Server, SSIS, SSAS, and SSRS to Azure
An exam question walkthrough: why a VM wins when the entire SQL Server ecosystem needs to move together.