Applied on their website. Received an email about phone. After phone call they flew me to London for an onsite. The interviewers were polite, but the interview was not nice. I think all the normal interview rooms were full so we settled for a video conference room. I had to program using a Bloomberg terminal as keyboard on a TV screen that was literally on top of my head. I spend 40 minutes looking upwards at the TV, but because the keyboard key mapping / shortcuts are different than normal keyboards I ended up closing the text editor program, typing wrong stuff many times and losing the progress i would have already made.

The first-round interview lasted about an hour and included questions about my academic background, projects, and motivation for joining Bloomberg. The technical portion focused on data structures, algorithms, and a coding/problem-solving question. The interviewer was professional and interested in my reasoning process, not just the final answer. I received positive feedback afterward and was invited to the next stage of the process.