Whatnot Software Engineer interview experience

The onsite itself included one system design round and one coding round. During the coding portion, I felt like I was in decent shape, but the system design round was the part that ultimately sank me.

In system design, I laid out functional requirements and non-functional requirements and then asked whether that covered everything I should be discussing. The interviewer stayed friendly, but she basically wouldn’t answer that directly. Throughout the conversation she seemed to go easy on me and even gave a signal at the end that I was doing okay—yet the next day the recruiter told me that the