Oracle Data Engineer interview questions

Completed 2 level of interview but didn't get any response after even though the interview went very well. Tried contacting hr through mail and call. It was a disappointing experience.

4 rounds: 1. 1h technical interview: system design questions + 1 problem solving question 2. Technical discussion about tools and technologies based on my resume and the Job Description. 3. Discussion with Manager 4. Behavioral