Over 20 years broad hands-on experience in IT systems administration, IT infrastructure management.
Windows Server (2003/2008): AD, DFS, WDS, , Windows Server Cluster, WSUS, DNS, DHCP.
Linux(Debian/Ubuntu), FreeBSD: HAProxy, Nginx/Apache, Samba, firewall, DNS, DHCP, FTP.
OpenStack, ElasticSearch.
Visualization: KVM, LxC, VMWare(ESXi).
DBMS support: MS SQL, Sybase ASE.
Monitoring: Nagios, ELK, Graphite/Grafana, Zabbix.
Automation: Ansible.
Cisco networking hardware, Juniper switches, Dell and HP servers, storage (HP MSA, EVA SAN), Avaya telephony, Polycom videoconferencing, IPC Alliance MX.
Various enterprise software deployment and support (trading systems, Bloomberg and Reuters terminals, custody software, research information systems, asset management software).
Programming languages – Python, shell scripting (bash/cmd).