Expert. Dynamic server-side webpages using the .NET-Framework. ASP.NET: 2005 - 2011, ASP.NET MVC: since 2011.
Experienced. Experimenting with cloud and big data applications. Active: since 2013.
Expert. High Performance Computing and embedded software. C: since 1996, C++: since 2000, C++11: since 2013.
Expert. Extensible and robust client / server applications. Highly active: since 2005.
Expert. Styling dynamic and static webpages. CSS: since 1998, CSS3: since 2010.
Expert. Writing managed Windows applications. Highly active: since 2003.
Proficient. Distributed version control system. Active: since 2008, GitHub: since 2012.
Experienced. Writing data-intensive distributed applications. Active: since 2010.
Expert. Description of web applications. HTML4: since 1997, HTML5: since 2010.
Proficient. Web applets and cross-platform. Active: 1999 - 2003.
Expert. Web applications that work everywhere. DHTML: 1999, High interest: since 2010.
Proficient. Composing professional documents. Highly active: since 2008.
Proficient. Evaluating analytic expressions. Active: since 2007, Maple: 2008 - 2010.
Proficient. Evaluating numeric expressions. First touch: 2006, Active: since 2009.
Experienced. Storing documents in a NoSQL manner. Active: since 2012.
Proficient. The most advanced commercial SQL database. Highly active: 2004 - 2007.
Proficient. The most common non-commercial SQL database. Active: since 2006.
Experienced. The cross-platform open-source graphics acceleration framework. Active: 2009 - 2010, WebGL: since 2012.
Proficient. My first server-side web scripting language. Highly active: 2000 - 2005.
Proficient. Like PERL but reduced to web scripting and higher acceptance. Active: 2004 - 2008.
Experienced. A flexible scripting language for quick prototyping. Active: since 2011.
Experienced. The most powerful cross-platform framework for C++. Active: 2009 - 2010.
Proficient. A centralized VCS with good VS integration. Active: 2008 - 2013.
Proficient. Writing Windows Forms applications. Active: 2004 - 2006.
Expert. The most powerful IDE on the market. Active: since 2004.
Expert. Writing extensible and testable UI applications. Active: since 2009.