Oracle

Easy to moderate type of questions with focus on SQL and binary search in initial rounds, and then going to the basics of dynamic programming and graphs and trees. Also some of the questions from operating systems.

HR interview (about 30 minutes). Followed by two 1-hour sessions with engineers (two at a time). Concluded with a session with the VP of R&D. Hiring decision was made within a day.

Very nice and patient interviewer. The process involved one phone screen and two rounds of interviews. It focused more on the foundation of OS knowledge and programming. My interview team was from the database department, so they focused more on C/