I applied in-person. The process took 1+ week. I interviewed at EGASA (Arequipa, Arequipa) in Feb 2009
Interview
They would ask for any experience (educational/industrial) on Oracle products from simple SQL queries exp. to Datawarehouse and datamining exp.
They would provide a simple aptitude test and train you when you get inside. Was not many people so I was ok
Interview questions [1]
Question 1
To be able to learn really fast about datamining products like Oracle Datawarehouse?