I applied online. The process took 4 weeks. I interviewed at Bloomberg (Hongkong) in Mar 2015
Interview
It was a first round group interview. There was 20 candidates, 1 interviewer from the Human Resources Department, and 2 interviewers from the Sales and Analytics department. We went into a big room, candidates are separated into 4 groups. The staff from Sales and Analytics first gave a introduction about the company. Then we had group discussion.
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.