I was contacted by the Talent Acquisition Director for a role at Nium. After an initial screening round, there was a hackerrank test. The test had few questions related to SQL and DSA. After the test there will be 2 technical discussions and 1 design round with the hiring manager. I was told there would be a 4th round that would be scheduled for me i.e. bar raiser round but it was never scheduled. I was given vague reasons saying that the interviewer is not available, travelling to US etc. If you are not interested in progressing the application, should've let me known and given me the feedback atleast.