EPAM Systems Developer Senior interview questions

After short call with hiring manager I got to technical interview. Since I was being hired as a contractor for specific project, the interviewer spent great deal explaining project details from technical point of view while not revealing clients name yet. After that, few questions about what I have done in my career that might be relevant to the project. Lastly, there was a coding session. The Task was very simple, but the interviewer was watching the me thinking and process.

The interview was taken on their platform where the IDE was like notepad and to run the code also we had to ask the interviewer. Coming to the interview itself, the interviewer was unnecessarily rude and not helpful. I was able to answer all questions still the interviewer tried his best to find a point where I could go wrong. At last he pointed out syntax error in the code I wrote and rejected me.