WHAT MOST PEOPLE DON'T REALIZE ABOUT BANKING SOFTWARE When people think about software for banks, they usually think about the customer-facing side — mobile apps, internet banking, transaction interfaces. That's the visible layer. But underneath it, banks run on a completely different category of software — internal operations systems that manage everything from physical assets and procurement to tax compliance, vendor contracts, and fleet logistics. These systems are invisible to customers but critical to everything the bank does operationally. What we delivered was a 20-module Financial ERP covering the bank's entire internal operations lifecycle. This is the story of what that actually involved — the scope, the complexity, the technical decisions, and what building software at banking-grade standards taught me. THE SCOPE: 20 MODULES, ONE SYSTEM The first thing that strikes anyone looking at this project is the sheer breadth of what needed to be built. Twenty modules.…