I applied online. The process took 1 week. I interviewed at OMX (Dallas, TX) in Jan 2010
Interview
It was a pretty easy process. I applied on Monday and got called in to interview the very next day on Tuesday. I was told that I was overqualified, but they had to take a chance to see if I would be interested because I had all of the exact skills that they needed. I did not get they pay that I wanted or needed, but I accepted anyways.