I applied online on a whim and got an e-mail response a few weeks later to set up a phone/technical interview. They hold technical interviews online through HackerRank. The interview began with three or four standard interview questions (questions about my resume, why Bloomberg, etc) which took about 5-minutes. The rest of the 45-minutes was all technical / algorithm stuff through HackerRank (see included questions). I struggled with the first (never really got anywhere) and then he told me to move on to the next one. Came up with an okay solution to the second one, O(n*log(n)), but he kept asking me if I could do it better. Ended up telling me a solution and then asking me to implement it (super simple). Overall, I felt like I was being grilled the whole time and it seemed like he didn't care about what I was saying unless it was me getting the questions exactly right. I know I didn't do so great on the interview. Got an e-mail a few days later saying they weren't interested in moving forward.