The interview process consisted of one coding round and one virtual on-site interview.

The coding round was fine; the problems I was given were interesting. The overall conversation was a bit dry. In most big tech companies (like Facebook or Apple), recruiters or interviewers always try to engage in some general conversation to sell the role to the candidate first (usually in a separate session over the phone) so that the candidate can decide if it's worth investing time in the interview. However, that was missing from the beginning.

After I cleared the coding round, I was invited for the Virtual On-Site, which was 4-5 back-to-back interviews in one day.

Some of the interviewers were not very thoroughly prepared and didn't have a shared codepad or whiteboarding application/link ready. Consequently, I ended up sharing my screen and typing in TextApp, which is not designed for writing code.

Although some of the engineers were really friendly and engaged in interesting conversations about various aspects of software engineering and day-to-day work.

But after the interview ended, I never heard back from them again.

It's quite natural or normal that I was not selected. However, what I find really bad and unprofessional is that even after 6-7 months, they never bothered to send an automated rejection email.

I have been interviewed at Facebook and was rejected, and the recruiter was courteous enough to call me personally to break the bad news.

I have been interviewed at Apple twice. I was rejected on the first attempt, and again the recruiter sent some level of feedback and rejection news within 2 days (I received the offer on the second attempt).

So, from my perspective, the overall experience was really bad, and it felt very unprofessional. You expected someone to invest a few weeks of their life to prepare and attend interviews, but you don't have the time to simply click a button to trigger a rejection email.

Overall question around algorithms and data structures.