I applied through a recruiter. The process took 4 months. I interviewed at Bloomberg (London, England) in Sep 2016
Interview
I took the Bloomberg Aptitude Test (BAT), a finance aptitude test, nearly a year and half before I was contacted about this position. I had indicated when I would be finished with my masters, so they emailed me about this job. I had 5 rounds of interviews: 3 phone interviews, 1 video conference from the Paris office to the London office, and 1 in-house interview in London (final interview). I started the application process in June and finished the interviewing process in September. I believe it took unusually long and normally happens much quicker.
Interview questions [1]
Question 1
What is the most creative solution you have ever come up with in a previous job?
What do you consider a challenging workplace?
Questions about selling the terminals to banks...
Why Bloomberg, etc...
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.