All published engineering notes, newest first.
7 published articles · 2 pages
RAG still describes part of this system. It stopped describing the interesting part once retrieved context became durable state that could constrain the next decision.
A pragmatic backend write-up about using Postgres as a lightweight staging and coordination mechanism for a snapshot ingestion pipeline, without introducing Kafka before the workload requires it.
August 2026 update: This article documents a reproducible pre-production/lab deployment, not a production-ready environment. The public-subnet/debugging shortcuts and missing …
We moved from a synchronous REST insert to an event-driven pipeline: batch POST → domain events → private Kafka topic → consumer maps back to domain and processes as before. Here’s the why, the how, and the code.
August 2026 update: This post records the delivery setup as it existed in September 2025. The project has evolved since then; the current Order Tracking case study is the …
For the current state of the project, see the Order Tracking case study. The first concrete project in my portfolio is an Order Tracking service. At its core, it’s simple: an API …