- Administered Windows Server 2008, 2012, 2016, 2019; various Linux OS's- Managed backup data of 1000+ data-sources (Microsoft, Veritas solutions)- Ensured that all critical IT data remained protected with on-site and off-site copies- Administered Hyper-V, ESXi clusters (1000+ VMs), SAN/NAS storages (FC, iSCSI)- Took part in Microsoft Skype for Business to Microsoft Teams migration- Supported Citrix VDI with 500+ user stations- Configured Cisco network products (routers, switches, firewalls, wireless)- Supported MS Exchange, AD, DNS, DHCP, WSUS, WDS, RDS, LAPS, NPS, SQL, iSCSI- Performed Azure AD, Exchange Online, Teams, Sharepoint Online administration- Performed daily tasks automating with Powershell- Had experience with Zabbix for infrastructure monitoring- Problem-solved, diagnosed and corrected various systems- Worked with user support teams and other staff members as L3 support engineer- Developed various GxP technical documentation

- Deployed 100+ VMs for industrial needs- Built and supported LAN for industrial computerized equipment (300+ devices)- Implemented remote control management system for industrial equipment- Backed up industrial computerized equipment (100+ devices)- Managed CCTV deployment (300+ IP cams, 4 standalone servers)- Took part in MES implementation project as a network infrastructure specialist

- Provided beneficial technical support and customer service to clients- Researched and analysed client's issues- Maintained various PC hardware and software- Performed physical cabling across network and servers- Installed operating systems, configured servers (Windows and Linux)- Completed Win 7 to Win 10 company-wide migration using Microsoft WDS