I applied online. The process took 4 weeks. I interviewed at Bloomberg (San Francisco, CA) in Apr 2016
Interview
The interview was great in the sense that they paid for all travel expenses however the questions were specific pertaining to economics which is not my field of expertise despite many new hires had English degrees, not Economics degrees.
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.