Tag
2Case Studies
#Idempotency
Replacing Cron Chaos with an Event-Driven Pipeline
- Cloud Architecture
- DevOps
- 06 Oct 2026
- 10 Mins read
The handover note said "check the pipeline runs" and nothing else. Behind that sentence were 41 cron jobs spread across 6 EC2 hosts, some chained by sleep 900 because someone had once needed job B t
Multi-Region Active-Active for a Payments API
- Architecture
- Cloud Computing
- 16 Aug 2026
- 06 Mins read
A payments API that moves real money had been running comfortably in a single AWS region for years. It was reliable until the day it was not: a regional control-plane incident took the whole service o