After the first stage of the interview, I decided I did not want to proceed with the process (writing this before I received any feedback from the interviewer).

It was a 30-minute call with their recruiter, who was 2 minutes late. I was bombarded with a series of questions about my career, during which I was not allowed to complete two entire sentences. Furthermore, I was asked about things clearly visible in my CV.

To my surprise, although the interviewer was not technical, they asked a couple of technical questions. I answered them without hesitation, but it was clear they expected single-word answers and did not understand the subject matter.

What transaction isolation level would you use for online payment processing?