Alireza Jafari focused on backend development and database migration for the Gozargah/Marzban repository, addressing a critical data integrity issue in user lifecycle management. He implemented a migration using Python and SQL to correct the last_status_change timestamp for expired accounts, ensuring accurate expiration times and consistent user status history across both MySQL and SQLite databases. This work reduced risk in expiration-based workflows and improved downstream analytics reliability. By providing clear traceability to the associated issue and commit, Alireza established a foundation for future data-correction migrations, demonstrating depth in cross-database reliability and attention to detail in backend engineering practices.