It's a day process and there would be 2 technical rounds, brush up core java, spring, hibernate ,db. Web Services knowledge would be plus. Overall, one needs to prepare well on above areas. Sometimes, DS questions can be asked(depends on interviewer)

Applied on LinkedIn. Got a call from recruiter about the opportunity. He asked me to read a bit more about their products. Had a call with a tech lead about my experience and comfort at exploring new technologies. Got called for an on-site interview. Two days before the interview, they sent me a homework with 3D models. I was supposed to do something like Google Street view with it. I implemented a simple double click and move to Target. Interview process included: Brainstorming about the homework Behavioral questions White boarding (longest common substring) I got it partially correct but explained where I went wrong. The interview was on a Friday. Got an offer on Monday. Overall positive experience. I found people at PTC really, really cool! And the tech there is just beyond Iron Man Jarvis level!