Software Developer applicants have rated the interview process at Bloomberg with 4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 54.6% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
I applied through college or university. I interviewed at Bloomberg
Interview
Answer some questions at the career fair. They invited me to an on-campus interview. 2:1 interview. They are friendly. I thought questions are easy. But I was declined. I think coding style matters and I am not used to writing code on paper.
I applied through a recruiter. The process took 3 months. I interviewed at Bloomberg (New York, NY) in Oct 2018
Interview
Several months from initial phone screens (applied to 3 positions, failing 2 but making it through 2 rounds of the last one). Called in for onsite in NYC at Bloomberg engineering HQ.
I applied through college or university. The process took 2 weeks. I interviewed at Bloomberg (Philadelphia, PA) in Sep 2018
Interview
I met with Bloomberg at a career fair. On campus interview followed 2 weeks later. I was interviewed by two software engineers that each gave me a technical question to complete.
The interviewers made up the questions on the spot, so I don't think you can prepare for specific questions.
Interview questions [1]
Question 1
Design an algorithm to determine whether a binary tree is valid.