I would avoid this employer. TLDR: No context on goal, no mention of obscure API framework. Write 3 endpoints in this framework you don't know and we didn't mention. "New" codebase is very poor quality. While the company and premise is interesting, the interview went poorly for a multitude of reasons. For starters, we pretty much jumped right into the "coding exercise" with no context on what we were trying to achieve. The repo provided was a pared down version of their "new" codebase. With about two sentences on what we were trying to achieve, they turned the mic over to me. Naturally, I was asking clarifying questions and trying to identify the goal here. The interviewer started getting somewhat short and annoyed. As I started getting an idea of what we were actually doing, most of our time had passed. Not only was the problem not described, but the context entirely hidden. There was no mention that they were using an obscure API framework, which they fully expected interviewees to write 3 endpoints for. They mentioned this repo is a pared down version of their new codebase, which itself was (to put it politely...) a disorganized heap of code. I walked away from the interview knowing I would not want to work for an employer like this. But best of luck to them in their search!