They are clearly doing something right considering the people in the company are there main asset. The interview process for me was positive, though I've heard others say there's went way too long and too many pointless presentations.
I applied through other source. The process took 2 weeks. I interviewed at Oracle in Jul 2016
Interview
One call with recruiter, one call with hiring manager, panel interview then offer. Process was fairly structured and well thought through. I was based in london and Oracle paid for all flights and expenses
I applied online. The process took 6 weeks. I interviewed at Oracle (New York, NY) in Dec 2017
Interview
Recruiter Phone interview followed by phone interview with management. Given an assignment before the face to face interview. Met the VP at the New York Office and had to present to him on the questions and assignment he assigned to me during the phone interview process.