Provides services to companies that accept a one-time job, DHCP, DNS, D-link DFL, Office, Server 2003,2008, R2, azure, Exchange, ESXI, VMware, Hyper-V, Win 7,8,10 XP, DVR registrator, UniFi. AVAYA, routing, nework. He worked in the companies the number of employees more than 1,000 people