Bloomberg Developer interview questions

Overview: Two phone interviews using HackerRank to solve algorithm problems. Then three on-site interviews, two where you need to solve more algorithm problems using pencil and paper and a third interview that is system design oriented. Then they take you out to lunch and if you are lucky you come back to talk to HR. For on-site coding they give you small 5x8" sheets of paper. It gives you very little room to write code and correct mistakes. A whiteboard would be much better for coding and facilitating conversation. Even better would be to use HackerRank for the on-site interview as well as the phone interview. The first person went fine. I solved two problems and then started on a third when time ran out. The second person was breathing down my neck the whole time. I coded the first problem and started working on test cases to make sure the code was correct He demanded that I give him my code even though I told him that I wanted to run through some test cases. Of course he found problems with it. On the second problem he gave me a hint that was incorrect and got me off track. The system design portion of the interview is basically a mind reading exercise. Make sure you pay close attention to anything he says that might give a clue to how he wants to solve the problem. Don't worry about how you would solve the problem yourself. My advice to other candidates: Make sure to practice algorithm-style problem solving as much as possible. Any job experience you might have is completely irrelevant. For example, I have extensive experience in the technologies that were in the title of the job posting. But I wasn't asked any questions about those things. The only thing that matters is that you can solve artificial problems under extremely tight time constraints with someone looking over your shoulder.