Geertjan Wielenga is a developer advocate who promotes Java and JavaScript as a speaker, writer, and trainer. He graduated from the University of KwaZulu-Natal with a degree in social science and a postgraduate degree in law.
Geertjan has worked in Austria, the Czech Republic, and the Netherlands for firms including Sun Microsystems and Oracle. Now a senior principal product manager at Oracle, he advocates the open-source projects Apache NetBeans and Oracle JET.
