At first, the API was just an interface. A way for one component to call another. Nothing more. Then the system grew. The monolith became multiple services. Teams became independent. Deployments became more frequent. And suddenly almost every important business…
For 18 months, we built our own fraud detection system. The reasoning seemed sound. Fraud was important. Payments were core to the business. We had strong engineers. We had access to transaction data. And building the capability ourselves would give…
Three teams. One database. And almost every deployment required coordination between them. The system was technically working. Payments were processing. Settlement jobs were running. Ledger entries were being created. But engineering was becoming slower every month. A change that should…
