Programming languages Java (since 2000) C++/C (occasionally since 1996) JavaScript (occasionally since 2008) Python (occasionally since 2016) Assembler (occasionally since 1989) Pascal/Delphi/FPC (since 1988) VBA (2003-2005) OS Linux (since 2008 (Ubuntu), openSUSE since 2011, (occasionally CentOS, Debian)) Windows (since 1993) Android (occasionally since 2012) embedded (occasionally since 1996) Specialization: teamlead/archictect/chief programmer/system programmer software architect & development frameworks creation global optimizations/refactoring/cleanup migrations multithreading code review and making guidance interprocess communications and making/working with dll/so ©