Had a call with the PM and two developers. Started with some obnoxious academic type questions, and then just a barrage of general questions pertaining to their tech stack. I could tell from the call that the team was looking for a unicorn, and the recruiter who head hunted me inferred the same experience with other candidates. My advice to hiring team is that if you don't see a technology listed on someone's resume, don't assume they can't do the job, and don't continue asking questions on only the technology currently in use with the program.