I applied online. The process took 3 weeks. I interviewed at Bloomberg (New York, NY) in Oct 2015
Interview
Submitted an application and received a prompt email in a day or two requesting phone interview. Phone call was very basic, why are you interested in bloomberg? why did you decide to study your major in school, basic things. Next I was called into the office for an interview in New York. Know the current news and who Bloomberg's competitors are (factset, capitalIQ, symphony). Called in for a third interview the following week in New York and this one was much more intense, Shadowed an employee for 30 minutes then had an hour long interview with a senior person in the company. Know your resume and everything you put on it and make sure that you understand everything you have put on it.
I applied online. The process took 1 day. I interviewed at Bloomberg (New York, NY) in Feb 2015
Interview
First there is a phone interview and then a superday. On the superday, about 30-40 other candidates are being interviewed at the same time as you. They have about 12 people from sales and analytics interviewing in three rounds. While other groups are interviewing, you get an overview of the terminal and a tour through the building.
The process took 4 weeks. I interviewed at Bloomberg (New York, NY) in Jan 2015
Interview
After applying online I was contacted for a short phone screen with HR, followed by a Superday at the headquarters in NYC. There candidates were interviewed with 2 separate employees in a "speed-dating-like" fashion. Touring the building and a tutorial on the Bloomberg terminals were also included in the NYC day.