Replacement of network switches in all locations in Ukraine.

Putting things in order in the infrastructure regarding communication channels, virtual machines, hosts, upgrading and replacing them. Completely replaced the infrastructure in the data center, regarding new communication channels and servers.

Restoring infrastructure after a large-scale cyber attack.

Creation of a network in the new head office (after the relocation).Development of a network of the head office and remote locations.

Installation of new equipment, preparing new subnets, setting up DHCP, DNS, etc.

Replacement of Wi-Fi infrastructure.

Monitoring critical equipment using Zabbix.

Updating network scheme.

Preparation of new infrastructure and transition to a new database for Medoc software. (firebird to postgreSQL)

Was directly involved in the installation and configuration of Netapp (data storage for the entire company).

In cooperation with international support, business-critical servers were migrated to the cloud (Frankfurt).

Continuous cooperation with international specialists in various areas of infrastructure, analysis, brainstorms, implementation.

Working with SFTP server.

Writing small scripts to automate file transfers.

Windows server 2008/2012; Terminal Server, Windows XP/7/8/10, Exchange 2013.Active Directory, Network Infrastructure, Remote Installation, User Administration, Remote Administration, Remote Support, Registry Configuration, Print Services. Networking: Firewall, Cisco routing and switching, TCP/IP, Ethernet, VPN, Wireless, DNS, DHCP Configuration. Hardware: General Installation, Internal Component Installation, office equipment (UPS, printers, multimedia projectors, intercom and other). Telephony: analogue and Cisco IP-telephony based on Cisco unified call manager Office Software: MS Office 2003/2007/2013/2016, Visio, Eset and Kaspersky antivirus,Abbyylingvo 12, Radmin, TeamViewer, CiscoVPN, Ciscoanyconnect, Cisco jabber, Cisco IP-communicator, VirtualBox, Trassir client.Variety of specific programs concerning aviation:APM, JetPlanner, E-link, Sitatex 6/8, AFTN, AMOS etc. BackUp\restore: Acronis, Nucleus kernel.