Pyramid Analytics Senior Software Engineer interview questions

Two people explained about `Pyramid Analytics` system, then asked me to tell about myself, tell about something I worked on recently, and at the end gave the question in java. the interview was not interactive at all, and the second interviewer just had a grump face during the whole interview, I could not focus with all the intensity that filled up the air, so eventually could not come up with a solution during the interview. a word of advice for the recruiting teams - be more pleasant, an interview is stressful enough even without your judgmental faces.