Expert Linux administrator, DevOps
I’m a full time freelancer working in system administration and DevOps fields. Having over 7 years of experience, I’m well versed in all things Linux, including, but not limited to: system architecture, high availability, cloud providers, CI/CD, perfomance optimization, security hardening, automation, virtualization, etc.
General skill list:
OS: Linux - expert, FreeBSD and Windows Server - proficient
Cloud services: AWS, Rackspace, Linode, Azure, Digital Ocean, Aliyun
SCM: Puppet, Ansible
Web servers: Apache, Nginx, Tomcat
Database servers: Mysql, Postgresql
Atlassian: Jira, Confluence, Crowd, etc - the whole suite
Monitoring: Nagios, Groundwork, Zabbix, Monit, Munin, Cacti
Virtualization: Openvz, Vmware ESXi/server, Proxmox, Docker
Mail servers: Zimbra, Exim, Sendmail, Dovecot
Backups: Bacula, duplicity, rsnapshot
High availability: Corosync/Pacemaker, DRBD
Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding).
Performance optimization: Magento, Wordpress, etc.