* Theoretical and practical knowledge of Windows Server (2016/2019/2022) and Linux (Ubuntu, CentOS, Rocky, etc.) operating systems at an administration level;
* Experience with Active Directory (AD DS) – User/Group management, GPO, OU structure, DNS, DHCP;
* Practical knowledge of File Server, Print Server, and Share permission models;
* Virtualization technologies – VMware (ESXi, vCenter), VM provisioning, and resource management;
* Experience with backup solutions – Veeam or similar systems (backup policy, restore, DR scenarios);
* Networking fundamentals – TCP/IP, VLAN, Subnetting, NAT, Firewall basics;
* Firewall and security systems – Experience with Fortigate, Sophos, Palo Alto, or similar solutions is preferred;
* Mail systems – Knowledge of Microsoft Exchange (on-prem or Online);
* Monitoring tools – Experience with Zabbix, PRTG, or similar systems;
* Understanding of logging and auditing mechanisms;
* Knowledge of storage systems (SAN/NAS) and experience with LUN management;
* Experience with Microsoft 365 (Teams, SharePoint, OneDrive) administration;
* Physical setup and initial configuration of system hardware;
Skills and Qualifications:
* Knowledge of network technology principles
* Skills in Distributed File System (DFS)
* Experience in configuring network equipment
* VMware vSphere, MS Hyper-V technologies
* Setup, configuration, and management of Windows Server and Linux environments
* Development and testing of backup and restore strategies
* Administration of Active Directory, Group Policy, DNS, DHCP, and file servers.