The process took 1 day. I interviewed at BNP Paribas (New York, NY) in Mar 2012
Interview
The interview was with the Director of FX Sales & Trading for a summer analyst position. The interview was in their NYC offices on 7th avenue in one of the offices on their trading floor. It started off well, we actually ended up speaking Spanish for the first 10 minutes even though I'm not Spanish nor is it on my resume. However he began to ask more technical questions about FX hedging strategies using forwards/futures, swaps, and options. I'm an equities guy with limited knowledge of FX strategies so I had some difficulty providing specific examples of concepts. I didn't get called in for another interview as they likely found someone with more experience in FX to take the position.
I applied through other source. The process took 2 weeks. I interviewed at BNP Paribas (London, England) in Jan 2015
Interview
I got the interview through a connection with a friend. Had no phone interview, I was just invited in for an interview with both people in person and on skype.
I applied online. I interviewed at BNP Paribas (Tokio) in Dec 2013
Interview
Applied online, passed the first interview (group interview, 3 people). Questions were petty basic. Why do you want to work at BNP Paribas? What are your strengths? Where do you see yourself in 10 years? The first interview was in Japanese.
The second interview was double, one with a trader, the other one with a sales person. Both in English. Questions: How do you think you will fit here? What are your weak points? What do you study in university? What was your biggest failure, etc.