A growing enterprise needed one ERP for every business function with room to integrate external systems. I designed and built Yirmibes Web ERP: a modular web platform covering purchasing, sales, export, finance, cash handling, warehouse, production, reporting and B2B operations. It runs on a multi-database architecture behind an API gateway, with real-time communication, background job processing and advanced reporting (FastReport, DevExpress). The business activates only the modules it needs and scales division by division.