Bert Ertman is a fellow at Luminis in the Netherlands. In addition to his day job he has served as the leader for NLJUG (4,000 members) for the past decade. A frequent speaker on Java and software architecture all over the world, he is also the author of Building Modular Cloud Applications with OSGi and a serial conference organizer. In 2008, Bert was honored with the coveted title of Java Champion by an international panel of Java leaders and luminaries. Bert Ertman is a JavaOne RockStar speaker and a Duke's Choice award winner.