I've spent my career in the trenches of backend engineering - building payment systems that handle millions of transactions, designing real-time data pipelines, and debugging cascading failures at 2 AM when everything is on fire.
Along the way, I noticed something: the gap between "I read about system design" and "I can actually design a system" is enormous. Most resources are either too academic or too shallow. They teach you the buzzwords but not the intuition.
System at Scale is my attempt to bridge that gap. Every article, every scenario, every diagram comes from real production experience. When I write about fan-out strategies or observability pitfalls, it's because I've lived through them - and I want you to learn from my mistakes instead of making your own.