Hi! I'm João

Software engineer writing about site reliability engineering, observability, backend systems, and building things that don't break at 3 AM.

Recent Articles

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Apr 5, 2026

Welcome to the Blognew!

introsrebackend

Series

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goawsdistributed-systemsbackendhttp

TinyAWS

Building AWS-compatible APIs from scratch in Go — one service at a time. Each post digs deep into how a real AWS service works at the protocol level, then walks through a working Go implementation you can point the real aws-sdk-go-v2 at.