Administration cluster of Servers Windows Server 2008-2016, CentOS, AD, Proxy Server (Centos) Administration of Asterisk (Centos), MikoPbx network infrastructure support (Mikrotik, Unifi, Cisco) visits to clients, installation of servers, setting up AD (access groups, rights, shared folders,) configuring backups (VeamBackup) installation of network equipment, telephony administration, configuring server backups, supporting local users, printers and hardware, 1C server administration (sql) local network and infrastructure support Jira data accounting encryption setting, cryptopro program setting, VPN setting, OpenVpn work with crypto pro, VIP Net, encryption (encoding)

Server cluster Administration Windows server 2008-2016: DNS, DHCP, AD,Proxy Serve(squid),Centos(Asterisk Server),EsetNod32 Server,MikroPBX,”Стахановец”server Installation and configuration of software and Hardware LAN support; Support for remote offices; Support for video surveillance systems; Access control and management systems support; ZKT Security System Support Interaction with contractors for IT services Administration of Linux (Centos) Servers Administration of network systems (Mikrotik, TP-Link, Cisco) Administration of video surveillance systems - Hikvision, HiWatch, Dahua MS Exchange Mail Server Management Configuring VPN connections(OVPN,L2TP,PPTP) Administration of 1C server (sql and file servers) Maintaining the company's infrastructure (DHCP, DNS, AD, Exchange) Working with clients - individuals and legal entities Building from scratch a network infrastructure for contractors on the construction cites(Server, local network, access points, Internet, file server)

Administration of a cluster of servers on ESXI (DC, 1C, Server 2008-2016, SQL, Ubuntu) Remote administration of servers in company branches,Interaction with contractors for IT services Administration of IT infrastructure and security systems in branches Setting up a video surveillance system, servers, alarm systems,and turnstiles Installing and configuring software, • Administration of video surveillance systems - Hikvision, Dahua. Elimination of viruses and SMS banners, Consulting on the choice of equipment - WiFi, PCs, servers, routers, printers, Setting up and technical support of equipment

Remote administration of servers and workstations, filling the IIKO Server program database (MYSQL, SQL Server), database management and creation, building network infrastructure from scratch for restaurants. Installation of servers, video surveillance systems, routers, switches. Administration of the restaurant chain of the city and regions. EDUCATION AND TRAINING IP telephony, mini-automatic telephone exchange (Zycco) Creation of VLAN on Cisco equipment and integration of a local telephone network into it User support, software customization, hardware repair

User support, network configuration, Cisco 1811,1921 router configuration (routing, firewall, dns, nat, rnat, pat dhcp) Installation and configuration of banking software Support for users and IT infrastructure of the office, troubleshooting, Basic setup of banking programs, Administration of branch networks LAN support; Support for remote offices; Support for video surveillance systems; Support for access control and management systems