Bit of a strange interview loop. My actual skills weren't really tested at all, but instead I was put through a single several-hour on-site. There was one interesting exercise I was asked to flesh out verbally, but the rest was a mixture of bragging about nights and weekends spent at the office, and explaining that this was most of the teams' first or second job out of college. Seemingly, they were going out of their way to underscore a tech bro culture. Eventually, it became clear that there was an anxiety around my own work history at well-established companies, as I was thoroughly asked bizarre questions about how much I like meetings and whether I require corporate structure to function. Overall, though, they seemed to consider things to have gone well, as they asked me about any friends that may want to work there, and then started collecting references from me--something you'd expect just before an offer is made. A few days later, one of the founders suddenly demanded a follow-up call so I could reassure him that I truly do not need nor want to bring in my own supposed corporate baggage to the team. It was a surreal conversation to say the least. Finally, after waiting a few days I mentioned that I was in very late stages with other opportunities, so waiting to hear back for much longer was going to be a dealbreaker for me. This angered the same founder, and I received a rude email back to the effect of "well, we didn't want you anyway!" I'm still not entirely sure what to make of this experience. I consider myself open to new kinds of cultures and interview styles, but I felt a very distinct anxiety around protecting their own engineering culture, such as it is. I have to assume there is a very real and devastating situation in their past that they are terrified of repeating, but for me, it came off as a very reactive and insecure approach to hiring.