I had gone through a referral via a current Amex employee. I did the entire loop, which consisted of 5 rounds (1 Hiring Manager, 2 onsite Dev, and 2 offshore Dev). Eventually, I figured it was decided to promote someone from within the team. Moreover, I had another Senior Engineer round, and the position just closed the day after I finished my interview rounds. Most of these interviews are just a pipeline process or backfill positions for assessment. Many times, this is just a permanent application process where interviews are aligned, but no actual hires or offers are made to the candidate, even though you are confident of your interviews. The feedback from the recruiters is just generic, suggesting you keep trying for other positions, which is not at all helpful.

Problem solving System design Behavioral