Jun 2017 - Present
State Enterprise Scientific and Telecommunication Centre "Ukrainian Academic and Research Network" of the Institute for Condensed Matter Physics of the National Academy of Science of Ukraine (UARNet)
Email and collaboration services
Virtualization and shared hosting
KVM, Proxmox, VMWARE, cPanel
IPS/IDS pfSense with Snort/Suricata, iptables, ipfw, pf
Solarwinds Orion, Cacti, Zabbix, Icinga
Other but not less important things
RIPE: Atlas, Stats, BGPlay
Administrator zone lviv.ua
Visualize data with ELK, Grafana
High availability recursive DNS load balancer
Few authoritative DNS server
January 2012 – Present
Integration of solutions in the customer's existing or new network organization or processes.
Professional technical support and solution management for customers.
Resolving technical issues in customer networks, providing consultations, emergency calls handling, performing regular software/hardware updates.
Turnkey solutions in IT industry
Senior System Administrator
October 2006 – May 2017
LLC “AB Ukraine” ( ISP Airbites.net)
Responsible for all aspects of designing, acquiring, implementing, administering and supporting LAN, network operating systems.
Responsible for designing, acquiring, implementing, supporting Data Center
Implementing/Maintenance servers based on FreeBSD, Linux and Windows OS
Implementing/Maintenance of routers and switches (Cisco, D-Link, Dell, Extreme Networks, etc)
Implementing/Maintenance of IPTV/VoIP services
Strategic forward planning of the network construction
Interaction with RIPE NNC, receiving LIR status, maintenance RIPE database
February 2005 – November 2005
LLC “Promavtomatyka 437”
Providing main office
Support of coworkers
Support office network