Position: System administrator
Category: Sysadmin
English level: pre
Years of experience: 2.5

Complete improvement of network infrastructure in the business center office with replacement of equipment in the server room and workplaces.
Ensuring the regular operation of the fleet of computer equipment,
network and software;
Creating optimum computer and software operability;
Data backup, verification and destruction;
Installing and configuring the necessary updates or new hardware and
software;
System troubleshooting;
Planning and carrying out work to expand the network structure of
the enterprise;
Detailed documentation creation
Organization and adjustment of networks;
Installation and optimization of operating systems(Windows, Linux, MacOS, Android);
Experience with FreePBX, CISCO devices, VPN, Smart Solutions, NAS devices;
Experience in configuring network equipment, understanding and experience in 
using NAT, VPN, VLAN, trunking, EtherChannel and similar to LACP, STP, 
routing, ACL technologies;
Knowledge of TCP/IP stack