Linux system administrator

I am a Linux System Administrator, have been working in this area since 2005. I could handle almost everything related to Linux servers, including Virtualization and Cloud hosting, performace tuning, automation/scripting, monitoring, email servers. I have managed really large systems with 5k servers, the project was aimed at mass Wordpress hosting. 2005-2008 extmedia.com -- hosting company 2008-2009 iponweb.net -- cloud hosting 2009-2011 nksupport.com -- support of Linux servers 2011-2018 freelance 2011-2018 rainmaker.fm -- mass Wordpress hosting * Linux maintenance (RHEL, Debian, Ubuntu) * Virtualization: (Docker, Vmware, Openvz, Virtuozzo, Xen, KVM), * Cloud hosting (Amazon AWS, Google Cloud), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, firewalld, qos, proxies), * Web servers (apache, nginx, lighttpd, tomcat), * Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), * Bulk marketing (Dkim, spf, high speed/inboxing, interspire), * Automation (puppet, perl/shell/awk scripting), * Monitoring (nagios, zabbix), * Hosting panels (Cpanel/WHM, Plesk, Directadmin).