They had very junior people screening the applicants in the coding and design rounds.

I coded in Scala but eschewed advanced features, so the code performed like Java. Still, they took ages to agree on the design. The interviewer had no knowledge of the visitor pattern.

In the design round, I answered the high-level design pretty well, even going into scalability and concurrency issues. However, the interviewer was only interested in database query syntax.

When I mentioned I had never worked on them, he abruptly left. The HR then came in and mentioned I needed to brush up on the basics. If they wanted database experience, they should have clearly mentioned it or taken the time to look at the applicant's CV, and not wasted both our time.

What decibels do you use daily?