Oracle Software Engineer Senior interview questions

Horrible experience.In first technical round 2 hackerrank questions were asked by the interviewer but he was in a hurry to finish the interview.When I started coding he told he ubderstood the approach and its correct.Before I could finish coding, he told we are good to end the interview in literally 20mins.

3 rounds of interview , every round is an elimination round, project based questions, spring boot and microservices Architecture based questions. Sql problems on jojns and rank , programming questions on string manupulations, java questions on reading a file and pattern questions to print number pyramid