Got a screening call 3 months after applying.

This was a straightforward interview with a few fluid mechanics/gas dynamics related questions.

2 weeks later, I got a call for the 2nd round, which had 5 video call technical interviews of 30 mins each (with VP, engineering director, etc.). 30 min slots felt too short for any meaningful discussion, as some of the interviewers joined the call late.

The hiring manager, however, seemed genuinely interested during the interview and interviewed me for 30 min extra. Interview questions were moderately difficult. They told me that I would hear back a Yes or No in a month's time.

Seeing the interest shown by the hiring manager, I was very optimistic about getting the job. But the hiring manager never got back to me. I emailed him TWICE to check the status of my application, but he didn't have the decency to reply.

So overall, the experience was awful. I spent a full day going through the interview process, the hiring manager himself spent more than an hour on my interview, but he did not care to spend 2 mins to send me a status update on the application.

Most interviewers asked very specific questions related to the semiconductor industry (vapor deposition, etc.), which won't really help them evaluate my expertise, as I have no prior experience in that industry. The hiring manager asked interesting questions related to fundamentals of fluid mechanics, heat transfer, and turbulence, which definitely would help them evaluate me.