American Express

First, they asked medium-level coding questions. In OS, they asked about process synchronization and paging concepts. The interviewers were cooperative; they gave some hints when I got confused on some questions. Overall, it was a nice experience.

The interview process took over a month to finish. It was not very complicated. They conducted all three rounds on the same day. Also, they have an urgent hiring position.

Two rounds back-to-back on the phone. Over the phone, first comes the algorithm, then behavioral questions. Easy and general. 45 minutes for each round, and the people are very nice and patient. If you get an offer, you will receive a call from H