I applied online. I interviewed at Bloomberg (London, England) in Nov 2019
Interview
It is a phone interview, the interviewer was really nice and friendly, it was a good interview experience. She cared about the fitness for this position, so asked many questions about background and transferable skills. She also offered the opportunity to ask her some questions and answered them in details.
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.