I applied through college or university. The process took 1 week. I interviewed at Barclays (New York, NY) in Jan 2014
Interview
Applied through campus recruiting. attended the superday. Interviewed at Barcap NY office. 1 tech round. 1 behavior round. 1 hr round. 30 mins each for the first two round. 15 mins for the hr round. People are really nice. The hr people great me at the front door and led me to the interviewers. The interviewers would lead me back. Relaxed working environment. The tech interviewer will ask some really easy questions like "what do you like about technology" to calm you down. And will then ask some basic OOP or algorithm questions. Then some networking or system infrastructure questions. Other times it was mostly conversational. The interviewer really try to understand if you really want to do this or not. So be yourself.
Interview questions [1]
Question 1
Asked a lot about very detailed questions about past experiences in the tech round. Be prepared for anything. Nothing really unexpected though.