DuckDuckGo Software Engineer, Backend interview questions

Applied via their website for a position and was contacted via email within a few days to set up a Zoom meeting. The meeting was around 45 minutes and very much a "get to know you" type of interview. I was then given a take-home challenge to design a solution for a particular problem and given a week to complete. Once completed, I received an email thanking me for my time and declining to pursue the process further.