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
Zero-Downtime PostgreSQL Major-Version Upgrade at Scale
A multi-terabyte PostgreSQL 12 database was reaching end of life, and the business ran around the clock, so the usual answer of "schedule a maintenance window" was off the table. We upgraded it to Pos
Cutting a SaaS AWS Bill 41% Without Slowing Delivery
- Cloud Computing
- DevOps
- 19 Jul 2026
- 10 Mins read
A growing SaaS ran on EKS with a full GitOps pipeline, and it was over its AWS budget nearly every month. The reflex from leadership was the usual one: freeze features until the bill comes down. That