Citrine Informatics Data Analytics Engineer interview questions

First round was basic hr questions. Then they sent me a take home project that was supposed to take "a few hours". Spent over 30 hours on the project, producing a working application, instructions on how to use, plus an essay on some other topics that they asked about. Next round was an in-person panel with two engineers, where they asked questions about translating the application details to a non-technical audience. Didn't make it past this round.