PTC interview questions

First HR interviewed me, asked some basic questions such as where I'm working, what do I do, salary and benefits, etc. Second, hiring manager interview : Some technical and behavior questions Third : Support specialist interview : Mostly technical, how do you approach or fix some specific problems

I was contacted for an interview after applying online and the initial phone interview was very standard and fairly easy. The in person interview is where it gets difficult. They don't come off very personable or friendly, clearly they do too many and don't seem to try to connect with the interviewee. Basically its more of a neutral environment rather than welcoming environment.