Informatica interview questions

Hr Round consisted of the normal job description and tell me about yourself question. Then two technical rounds of 45 minutes. Two technical rounds consisted of resume-related technical questions and leetcode medium problems. Fast-paced interview and great interviewers.

After 2nd technical round I received negative feedback from HR saying that I need improvement in DS Algo even after solving the given problem with linear complexity. I think interviewer was not expecting that and I hurt her ego. May be she didn't know that I made a project which helps people like her to understand DS and Algorithms. I answered almost 90% of questions right. I felt like interviewer was not qualified enough or don't have intention to hire a good candidate. I experienced lack of transparency.