At Luxottica, during a promotional campaign load spike, about 30% of product catalog requests started returning 503s — not all…
Robert Teah
DevOps Engineer
Cloud Engineer
Infra Engineer
Site Reliability Engineer
DevSecOps Engineer
Robert Teah
DevOps Engineer
Cloud Engineer
Infra Engineer
Site Reliability Engineer
DevSecOps Engineer
Senior DevOps / Platform / SRE Engineer with 10+ years of experience operating production infrastructure at enterprise scale across AWS and Kubernetes environments.
Author: Robert Teah
September 27, 2026
What Broke First at Scale: The Synchronous Bottleneck Behind WebIntell
Load-testing the WebIntell ingestion pipeline exposed a problem that hadn’t shown up anywhere in normal operation: under 50 requests per…
September 27, 2026
Why Your Readiness Probe Is Lying to You
At Luxottica, a new version of the Java Ad Service deployed to production EKS. The pipeline reported success, all six…
September 27, 2026
A Peak-Traffic RDS Failover Outage, and Why Disaster Recovery Isn’t a Configuration
At Home Depot, a Prometheus alert fired on elevated write-error rates across the checkout service during a peak shopping window…