12 years of experience setting up, fine tuning and maintaning servers based on Microsoft WIndows Server (Microsoft SQL Server, PowerShell, BAT files scripting, Active directory), FreeBSD and Linux operating systems (Nginx, Apache, PHP, Exim, SpamAssassin, MySQL, PostgreSQL, Tomcat, DSpace, Bind, SNORT IDS, firewalls). 5 years of experience making OpenWRT based custom firmware for Wi-Fi routers.