Roel started a long time ago in the era of Oracle RDBMS 5. Since then Roel has gained his experience in building applications for end users. The last 10 years his focus has merely on APEX.

Roel has been a speaker on Oracle conferences around the world, including ODTUG’s Kscope, for more than 10 years.

Next to that, within ODTUG he acted as the APEX Content Lead for Kscope14 and KScope15 conferences and is currently a member of the Board of Directors. 

He keeps a blog on http://roelhartman.blogspot.com. In June 2009 Roel received an Oracle ACE award, in August 2010 he’s appointed as Oracle ACE Director and since June 2019 he is an Oracle Groundbreaker Ambassador. 

Roel is a co-writer of the “Expert Oracle Application Express” and “Oracle Application Express for Mobile Web Applications” books.

Roel is Director at APEX Consulting in The Netherlands.

You can contact him at roel@apexconsulting.nl.