- * **Operating systems**: Linux (Red Hat, Fedora, Ubuntu, SuSE, Debian, uClinux), Mac OS X, Solaris (versions 6 to 9),
- NetBSD, AmigaOS, Windows.
- * **Frameworks and APIs**: POSIX, Qt, Gtk, STL, Boost, WIN32, MFC.
- * **Programming Techniques**: OOP, generic programming, metaprogramming, real-time, event-driven, multithreading.
- * **Development Tools**: GCC toolchain, GNU make, auto-tools, MSVC, XCode, Codewarrior, IAR, Code Composer Studio, BSO Tasking.
- * **Revision Control**: Git, Subversion, CVS, RCS, Rational Clearcase, Source Safe.
+ * **Operating systems**: Linux (Red Hat, Fedora, Ubuntu, SuSE, Debian, uClinux), MacOS X, Solaris (versions 6 to 9),
+ NetBSD, AmigaOS, Windows
+ * **Frameworks and APIs**: POSIX, Qt, Gtk, STL, Boost, WIN32, MFC, Berkeley sockets and TCP/IP
+ * **Programming Techniques**: OOP, template metaprogramming, generic programming, real-time systems, event-driven design, multithreading
+ * **Development Tools**: GCC toolchain (contributor), MSVC, XCode, Codewarrior, IAR, Code Composer Studio, BSO Tasking
+ * **Version Control**: Git, Subversion, CVS, Rational Clearcase, Source Safe, Perforce
+
+ * **Systems administration**: XEN, KVM, Libvirt, Puppet, Nagios, Munin
+ * **Server software**: BIND, DHCP, Exim, Qmail, Postfix, Apache, MySQL, PostgreSQL, Asterisk
+ * **Networking**: TCP/IP, IPv6, DNSSEC, BGP routing