I applied online. I interviewed at Bloomberg (London, England) in Jan 2018
Interview
Although the process has taken quite a long time (I waited 3 weeks for each interview), it was generally well organized. I have heard that interviews vary in length and difficulty, but they went through my CV and asked real-life examples of specific topics/previous positions (ex: Tell me about a situation where a client was mad, and what you did about it.)
Interview questions [1]
Question 1
What are Bloomberg's competitors?
Why do clients choose Bloomberg?
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.