Eff Creative Group interview questions

I submitted my resume during a career fair and heard back after a few weeks. I was interviewed by the CCO and the CTO, but they were 15 minutes late because their meeting ended late. Honestly, I didn't know what role they were interviewing me for and they didn't even specify when I got the interview invite (I wasn't sure whether I should ask). They asked me questions related to design and software engineering based on my resume. The CTO looked really unhappy since the beginning of the interview. Overall their interview seems unorganized and they should really list times they are actually available.