Remote administration, setup and tuning: Linux (CentOS, ASP, Debian, Ubuntu), FreeBSD, MacOS, Windows (XP, 2003 Server, 2008 Server, 7-10). Scripting: bash, shell, python; Software development: php (yii), python (+web.py), assembly language (Z80, Motorolla 680xx, x86), Java (android); basics: Java EE (Spring, Hibernate, tomcat, JDBC), Objective C, Swift, C#; Video editing: Adobe After Effects, Adobe Premiere, Edius; Unity3D - basics;