SIM Card Management System

SIM Card Management System is an internal business application built to replace fragmented spreadsheet-based management with a centralized workflow. I worked on the application during my software development internship, completing Phase 1 and building Phase 2. The system includes user and permission management, SIM and USB records, subscriptions, service providers, OTP handling, branches, VPN connections, device status, quotas, reporting, and automated email notifications for internet-line renewals. I also worked through issues such as soft-deleted entities being excluded from searches and improved existing systems as requirements changed. The application is hosted locally for internal use because it handles private company data.