Roel is a very experienced Oracle Software Architect. He started about 20 years ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5 - since then he used all versions of these products. Since a few years he focuses mainly on Oracle Application Express. In his daily work, he has acted as a (technical) lead in numerous projects using Designer, Developer, PL/SQL and APEX. Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG's KSCOPE and a number of local Oracle User Groups. He is an active participant of the Oracle APEX Forum and keeps an (APEX-related) blog on http://roelhartman.blogspot.com. In June 2009 Roel received an Oracle ACE award and in August 2010 he's appointed as Oracle ACE Director. Roel is a co-writer of the "Expert Oracle Application Express" book and the main author of the "Oracle Application Express for Mobile Web Applications" book.
After having worked over 20 years in large companies, Roel started his own company in 2012 as part of the APEX Evangelists network. In 2013 Roel rebranded this company to APEX Consulting. Next to the AE network, Roel is also a board member of the Smart4APEX guild.