• Administration,configuration of active and passive network equipment; •Upgrade systems and applications; • Installing,configuration and administration Windows Server 2012/2016R2,DNS,DHCP. • Installing,configuration and administration Active Directory,Microsoft Exchange 2010/2016, AntiSpam Barracuda V300. • Installing and configuration Lync Server 2013 •Configuration and administration VMware(Esxi 6.x)Hyper-V,Cluster NetApp Storage. •Configured,administrate Barracuda and ASA Firewall •Backup, Windows Server Backup,Veeam Backup&Replication, SQL Backup •Performing weekly checks on the infrastructure from the datacentre,and the environment(network, servers, storage, workstations) •SAP Basis