Marcus is one of the founders of Appeal Virtual Machines, the company that created the JRockit JVM. He is currently working as Team Lead for the Java Mission Control team. In his spare time he enjoys coding on his many pet projects, composing music, scuba diving and building things. Marcus has contributed JRockit related articles and tutorials to the JRockit community, and has been an appreciated speaker at various conferences. He is also one of the two authors behind a popular book about JVM technology.