Sven Lüppken holds a degree in Computer Science, which he passed with distinction. He is currently employed as a Java Software Developer at CBC Cologne Broadcasting Center GmbH, one of the leading broadcasting and production companies in Germany and a part of Media Group RTL Germany. Sven started programming in C and C++ at the age of sixteen and quickly fell in love with the Java programming language during his studies. When he got the chance to write his diploma thesis about object-relational mapping technologies, he accepted at once. Since then, he has integrated Hibernate and the JPA in many projects, always in conjunction with the Spring Framework.
Markus Stäuble is currently working as a CTO at namics (Deutschland) GmbH. He has a Master's degree in Computer Science. He started programming with Java in the year 1999. After that, he has earned much experience in building Java enterprise systems, especially web applications. He has a deep knowledge of the Java platform and the tools and frameworks around Java.