I was approached by a recruiter who insisted on having a video call as soon as possible so that they could get to know me. However, the call was scheduled with a different person.

Despite the recruiter's insistence that this was just a first conversation, without technical questions, the call consisted of the interviewer firing questions like a robot. The interviewer was quite rude, and her audio setup was not working properly, which became quite annoying as I had to constantly ask her to repeat the questions. This was especially annoying when she asked about the meaning of some acronyms; it was impossible to understand her.

At the end of the interview, she rudely said that I would not be continuing with the process, as I didn't have the experience with parallel programming and concurrency they were looking for. They could have asked this before the video call so that I wouldn't have wasted my time.

Overall, it has probably been the worst experience I have had since I started my career.

• Concurrency
• Data structures
• Big O notation.