NetBSD, AmigaOS, Windows
* **Development Tools**: GCC toolchain (contributor), LLVM, MSVC, XCode, Codewarrior, IAR, Code Composer Studio, BSO Tasking
* **Frameworks and APIs**: POSIX, Qt, Gtk, STL, Boost, WIN32, MFC, Berkeley sockets and TCP/IP, Google APIs
* **Programming Techniques**: OOP, template metaprogramming, multithreading, real-time and event-driven systems
* **Version Control**: Git, Subversion, CVS, Clearcase, Source Safe, Perforce
NetBSD, AmigaOS, Windows
* **Development Tools**: GCC toolchain (contributor), LLVM, MSVC, XCode, Codewarrior, IAR, Code Composer Studio, BSO Tasking
* **Frameworks and APIs**: POSIX, Qt, Gtk, STL, Boost, WIN32, MFC, Berkeley sockets and TCP/IP, Google APIs
* **Programming Techniques**: OOP, template metaprogramming, multithreading, real-time and event-driven systems
* **Version Control**: Git, Subversion, CVS, Clearcase, Source Safe, Perforce