Position: Linux Administrator
Category: Sysadmin
English level: pre
Years of experience: 11

More than 10 years of administration of Windows (7-10, 2008, 2012), Linux (Fedora, Centos, Debian) and FreeBSD, administration of web projects, experience as an architect of highly loaded projects.
Linux infrastructure administering:
RedHat/CentOS, Debian/Ubuntu
BIND
MySQL, MariaDB, PostgreSQL, Percona Cluster, MongoDB
Apache, Nginx, Apache+Nginx
OpenVPN, PPTP
Postfix, Dovercot
ELK

Microsoft infrastructure administering:
Windows server (2008-2016)
MSSQL
Active Directory
Exchange

Monitoring:
Zabbix, Cacti, New Relic

Network infrastructure administering:
Mikrotik, Cisco

Virtualisation:
VMWare, KVM, Proxmox, Hyper-V, Docker, Docker Compose

Cloud:
Google Cloud, Azure

Development:
C++, Python, Bash
Projects based on cloud technology.
Automation of projects. 
High load projects.