System Administrator at Settlementer Center CJSC

From July 2021 until now, I have been working at Settlement Center CJSC as the chief specialist of the information technology department and my responsibilities are: 1. Antivirus system maintenance (Kaspersky) 2. Updates to user computers' operating systems (WSUS) 3. Phone Call Service (3CX) 4. Full server maintenance (Windows Server, Ubuntu, Debian) 5. Monitoring of the entire infrastructure (Zabbix, Prometheus) 6. Data archiving (DPM) 7. Electronic mail service (Exchange) 8. Protection from external attacks (Fortigate) 9. Network design