Network engineer and system administrator with 13+ years of hands-on experience. I have been working with a different network topologies, from office to metro network. I am skilled Unix system administrator, with lot of experience in Linux (CentOS, Debian, Ubuntu) and BSD (FreeBSD and OpenBSD) systems. I am proficient in configuring Cisco routers and switches, network designing and implementing. I have got working experience with: Switching & Routing; Security (ACL implementation, hardening routers and switches, IDS/IPS; RADIUS, TACACS+); VoIP (Cisco voice gateways, UC, H.323, IVR, T.38/T.37 fax); Monitoring (netflow, flow-tools, nagios, zabbix); Clouds (GCE, AWS, DigitalOcean);