- Administration ОS: Linux(Debian,Ubuntu) Windows/Windows Server

- Networking: Kerio Control, Mikrotic, Ubiquiti, D-Link, TP-Link

- Scripting: PowerShell, Python, JavaScript

- Database: MySQL, MSSQL, Postgres, Dataverse

- Virtualization: VMware, Proxmox, Hyper-V

- Monitoring system: Zabbix 4/5, PRTG

- Backup system: Acronis, Veam

- Azure: Build and configuration hybrid infrastructure, network, Backup/Replication

- Security: Install and administration corporate antivirus, DLP-system, pentests

- Office365: Administration – Sharepoint, Team, Azure Active Directory, Power Platform

- Mail servers: Exchange/Exchange Online(Hybrid config, migration etc)

- Jira Software, Jira Service Management(Administration, Automation etc.) - - iPaaS: n8n, PowerAutomate, Make

- REST api: Integration Business Process with different system

- Work experience with: CRM and HelpDesk system.