Dietmar Aust is working as a freelance consultant in Germany, focusing on Oracle Application Express and Oracle XE. Starting in 1997, he worked for three years as a consultant for Oracle in Germany. Since then, he has helped numerous leading companies in Germany to successfully deliver web-based applications based on the Oracle product stack, especially the Internet Application server – Oracle Portal and Reports. He is a regular presenter at various Oracle conferences (ODTUG, OOW, DOAG), conducts training classes on APEX, and co-authored a book on APEX best practices in German (Oracle APEX und Oracle XE in der Praxis), as well as Expert Oracle Application Express in English. He was awarded Oracle ACE status in 2012 and the database developer of the year award in the ORDS category in 2015. Find out more about him at http://www.opal-consulting.de or http://dietmaraust.com .
John Edward Scott has been using Oracle since version 7 (about 1993) and has used basically every release since then. He has had the good fortune to work on a wide range of projects for a varied group of clients. He was lucky enough to start working with Oracle Application Express when it was first publicly released and has worked with it nearly every day since (and loves it).John is an Oracle ACE Director, was named Application Express Developer of the Year in 2006 by Oracle Magazine, and is the author of the best-selling book Pro Oracle Application Express. He is also the co-founder of APEX Evangelists (www.apex-evangelists.com), which specializes in providing training, development, and consulting specifically for the Oracle Application Express product.
Christian Rokitta is an independent Oracle consultant with more than two decades of experience in Oracle Database development and web development. Since 1998, he has used the Oracle Web Toolkit and mod_plsql to develop data-centric web applications in Oracle environments. Using the APEX development framework was the logical next step.Christian is German, but for the past 15 years he has lived and worked in the Netherlands. From 1996 to 1999, he worked as a custom development consultant for Oracle Netherlands. In the 10 years that followed, he acted as consultant and product development manager for Scamander Solutions. In April 2010, Christian became an independent Oracle consultant and founded themes4apex, a service that offers custom APEX theme design, and developed the commercial APEX SmartPivot plug-in.
Alex Nuijten is an independent consultant (allAPEX), specializing in Oracle database development with PL/SQL and Oracle Application Express (APEX) and member of the Smart4APEX Guild.Besides his consultancy work, he conducts training classes, mainly in APEX, SQL and PL/SQL. Alex has been a speaker at numerous international conferences, such as ODTUG, Oracle Open World, UKOUG, IOUG, OUGF, BGOUG, OGH APEX World and OBUG. For his presentations, Alex received several Best Speaker awards.He wrote many articles in Oracle related magazines, and at regular intervals he writes about Oracle Application Express and Oracle database development on his blog "Notes on Oracle" (nuijten.blogspot.com). Alex is co-author of the following books “Oracle APEX Best Practices” (published by Packt Publishers) and “Real World SQL and PL/SQL” (published by Oracle Press).Because of his contributions to the Oracle community, Alex was awarded the Oracle ACE Director membership in August 2010.
Aljaž Mali is an Oracle ACE Associate ( from December 2017 ) and an employee of Abakus Plus, d.o.o, where he works as IT solution architect. He has been working with Oracle Application Express since its very beginning (HtmlDB 1.5). His main focuses are application development as well as consulting and education about Oracle Application Express. In year 2015 he became a member of Slovenian Oracle User Group (SIOUG) executive committee. In year 2016 he was selected as a member of the month (March) at apex.world portal and in January 2017 he was elected as a SIOUG Vice president. He is a frequent speaker at local Oracle conferences (SIOUG, HrOUG, SrOUG).
Peter Raganitsch is the CEO & co-Founder of FOEX GmbH, an Austrian IT company focused on developing the FOEX Plugin Framework - a Rapid Application Development tool meant to extend the current capabilities of the Oracle Application Express and simplify the way enterprise-grade web applications are being built. Having more than 20 year of experience in using Oracle technologies, Peter is an Oracle ACE Director sharing his knowledge through articles, trainings and webinars.