Architecture diagram — event-driven retail backend with per-channel BFFs, transactional broker, dispatcher side-car, three-plane (data, control, compliance) topology

Event-driven retail backend — BFF + Broker + Dispatcher

Decomposing a retail monolith into per-channel BFFs + a transactional Broker + a Dispatcher side-car. Pattern explains how to keep mobile app, admin console, customer portal, and physical POS independent without blowing up the payment + inventory + logistics + loyalty mesh behind them.

 · 10 min · Pedro Balbino
Architecture diagram — compliance RAG pipeline, data plane + shadow compliance plane, LGPD + BCB 4.893

Compliance-grade RAG for tier-1 LATAM banking

Building an LLM agent for tax-compliance document review under LGPD, internal audit gates, and controlled deployment windows. Pattern: retrieval pipeline + citation extractor + auditable decision log + human-review gate. Stack: Python + Azure OpenAI + Postgres + Terraform.

 · 7 min · Pedro Balbino