No introduction, they asked me to start my interview presentation immediately. (5 to 10 minute PowerPoint presentation outlining background, motivations, research interests and future career goals.) I think the interviewer was quite rude, and was only invested in your technical skills and not your personality.

Reaching out to professor via email and was called for a project, expressed the interest. Later I was reached out b y one of the people working on the projects for an interview over the phone