Qualcomm Senior Lead Engineer interview questions

This interview is for Storage windows driver. Recruiter contacted me through job posting social website. Scheduled two interviews back to back. One round was taken by the person who is leaving company(interview is for his position). He doesn't seem to be interested at all in the interview. Asked few basic questions. Second round was almost 90 minutes. He asked many questions related to storage. Protocol and internals of NAND device(i am from storage background). I almost answered all the questions to his satisfaction. 1st round interviewer was bad. He is not engaging and not friendly at all. 2nd round interviewer was friendly but i felt it is like knowledge(free) sharing session. I have to explain a lot since he is curious to know what happens in device side. After 2 rounds HR notified me that i didn't get through the interview.

Applied for senior engineer post in Qualcomm Hyderabad, India. Had multiple rounds of interviews. Received proposal letter in the next week after the interviews got over. It's been one month and even after multiple follow ups got no response from the HR for further steps. And finally they just told that the position kept on hold. It's waste of both time and energy!