I had a total of 5-6 rounds, starting with a brief technical round, followed by a HackerRank online assessment test.

I must say, it was not a good experience. The interviewers were very unprofessional.

Most importantly, they lacked the courtesy to respond to the candidate with any kind of feedback. After spending almost 8 hours in interviews, they wouldn't even come back with any response or feedback. It does not have to be positive, but you should respond to the candidate.

I was not expecting such an unprofessional interview process from a company like Visa.

General technical questions and behaviour questions.