Markus Stäuble is currently working as Senior Software Engineer. He has a Master's degree in Computer Science. He started with Java in the year 1999, since when he has gained much experience in building enterprise Java systems, especially web applications. He has a deep knowledge of the Java platform and the tools and frameworks around Java.
Hans-Jürgen Schumacher studied mathematics at the University of Karlsruhe, Germany. For 17 years he has been working as a Software Developer and Architect. Right now he has the position of a Senior Architect for J2EE. One of his special fields are GUIs for web applications as well as Improvements in the Software Build process.