Several phone interviews, plus the loop consisting of another 5 interviews, a writing exercise and a final interview in person - although I passed the interview process, wasn't offered the job. Such a waste of valuable time and no contribution towards interview travel expenses

30 min phone screen by a recruiter, then 45 minute high level interview by hiring manager, and the final round is a "loop" which is 5 back to back behavioral interviews where you are asked to answer in STAR format (situation, task, actions, results).