Wolfgang is a Drupal developer from Vienna, working for the Austrian Drupal company Epiqo (formerly Pro.Karriere). Wolfgang got involved with Drupal's great community with his Google Summer of Code project Node Profile in 2006. Since that he is involved in developing enhanced profile solutions based upon nodes or entities & Drupal in general.
Johan Falk works with Drupal trainig, documentation, pre-sales and development at NodeOne, the leading Swedish Drupal provider. He is also manager for the Swedish Drupal group, where he writes guides, posts screencasts and answer questions for newbies and advanced Drupal users.
I'm a student and part time Drupal developer currently working on my master thesis about Drupal and web services. I'm involved with the Rules module and I'm interested in: code management with Git, automatic testing with Simpletest, site administration with Drush, advanced module development with Rules and data integration via web services.