I am currently a systems engineer in the financial field, and a freelancer PHP and C developer.
I'm using computers since my childhood. I have learned programming in BASIC, Pascal, Delphi, C, Perl, TCL and PHP, and the administration of different Unices like Debian/Ubuntu Linux, Red Hat/Fedora Linux, Gentoo Linux, AIX, HPUX, and so on.
My specialities are PHP (mostly Symfony 2), C (GNOME stuff like GTK and GLib), Debian and Fedora.
Q&A for professional and enthusiast programmers
Q&A for those using, extending or developing Emacs
Q&A for system and network administrators
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Q&A for computer enthusiasts and power users
Q&A for passionate videogamers on all platforms
Q&A for WordPress developers and administrators
Q&A for Ubuntu users and developers
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for Information security professionals
Q&A for professional programmers interested in conceptual questions about software development
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for users and developers of hardware and software for Raspberry Pi