I applied through a recruiter. The process took 3 weeks. I interviewed at Bloomberg in May 2012
Interview
Not too bad, the recruiter I spoke with was encouraging but truthful. As a finance student in college - bloomberg was what I thought I wanted in a career. The position seemed more sales focused. You're allowed to pick two markets to focus on...but it was still about selling terminals.
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.