IQ Inc. interview questions

I had an initial phone screening with the recruiter which was more general regarding my background. As the interview ended, I was immediately set up with a more technical interview with the recruiter and a senior software engineer. In this, they presented me with a C# problem (my language of choice), and I worked through it while being able to ask questions and work with them. I felt very comfortable and it went well, taking around 30 or so minutes. We continued for another hour in which I was asked more in depth questions about my background and was able to ask questions to both of my interviewers. Unfortunately, communication after this interview was nonexistent. I was told to expect a response about further steps within the week, but never heard anything. To be fair, there was a federal holiday the weekend after my interview, and I interviewed on Friday. However, I emailed twice since then to thank them for the opportunity and later inquire if the position was still available. Months went by and nothing. Extremely disappointing considering the interview itself was absolutely wonderful.