Oracle Senior Software Engineer interview questions

The interview process was smooth and well organized. After the phone call screening, I got an invitation for the technical interview. There was a code session, I needed to implement a singleton pattern. And some behavior questions. After that the loop session of 5 interviews: both technical and behavioral.

First stage is Phone call with HR which is to explain the interview process; The second stage is Simple Code Interview. You asked to implement searching function and answer Big O questions; The third stage is Panel Interview which includes system design, coding, technical Q&A, behaviour questions.