Over 8 years experience of Linux/UNIX administration.
Project management: DevOps and Agile(XP, Kanban) methodologies.
AWS: EC2, Route53, S3, OpsWorks, CloudFront, ELB, EBS, Auto Scaling, SES, CloudWatch.
Configuration management systems: Opscode Chef, Puppet.
Monitoring systems: Zabbix, Nagios, Monit, Logstash, Pagerduty(SaaS), Circonus(SaaS), Datadog(SaaS), New Relic(SaaS), Pingdom(SaaS), Collectd, Statsd, Graphite, Ganglia.
Continuous integration systems: GO-server, Jenkins (Hudson), Travis CI, Gitlab CI.
Virtualization: VMware, LXC, Openstack, KVM, Xen, VirtualBox, Vargant, Docker.
Load balancing: HaProxy, Squid, Pound, Keepalived, Pacemaker.
Web services: Apache, Nginx, Lighttpd, P...