Spoke with CEO, then a coding screen afterwards. CEO says the coding screen will "be a hard problem" and the purpose is to "collaborate to formulate a solution," but don't be fooled, it's just Leetcode medium questions. If you've done Leetcode before, you'll know that there's really no "collaboration" you're going to know it or not and any help you get from the interviewer will just be slight hints to solutions that you would already know from grinding out problems. Obviously I failed the tech screen, but in my defense I was working on bigger take home assignments for another interview. Finished the first question fine, but only came up with about a 75% solution for the next. And of course, a canned response telling me what I assumed.