The process took 4 weeks. I interviewed at Bloomberg (New York, NY) in Jan 2016
Interview
Pre-recorded interview, Assessment Day, in total 3 interview rounds. Interviews were more competency based than technical questions. Really know what Bloomberg does and which products it offers. Know some of the functions of the Bloomberg Terminal. Also important are the challenges Bloomberg might be facing in the next 5 years.
Interview questions [1]
Question 1
Why Bloomberg? Which products do we have? What could investors not do when the Bloomberg Terminal does not work?
Begins with a personality assesment that also includes puzzles meant to test pattern recognition. The assesment and the personality quiz takes about 30-40 minutes and requires no preperation before hand.
First was Hireview, 1 Hour interview with two team leaders, and assessment centre, consisting of tests, networking, and a final round interview with two team leaders from analytics and sales departments respectively.
Multi step interview process, they have you submit a recorded video interview, then you get selected for a virtual super day where they interview a bunch of candidates at once, then you get an in person. Know about finance and know as much as you can about Bloomberg and its business. Have a good take on AI in finance.