Participate Learning interview questions

First round was a zoom conversation with an HR screener and that was pretty easy and she was nice. The actual interview was with a panel of 3-4 people and was fairly intense. There was an hour of questions then a break then another hour of questions. They seemed to have pretty high expectations for what they were looking for. Ultimately they told me they were not hiring anyone for the position because they didn't find what they were looking for. Makes me wonder if the job actually existed at all.