Production RFID SaaS platform for enterprise asset tracking and stock management. Built a 3-layer architecture covering a Java middleware that communicates directly with UHF RFID readers, a React web dashboard for asset lifecycle and depreciation management, and a Flutter mobile app for field staff to pair tags, run inventories, and search assets with a handheld reader. Deployed for GAT Assurances, Transcom, and SOTIPAPIER.