The focal point of one of the interviews was a review of the code that I submitted. The language that I chose was Go, and the questions were around things like: - Why did you use sentinel errors in this specific case? - What led you to the decision to make these functions/methods public to other packages? - Why did you choose to store data in-memory and what alternatives would you have done otherwise? The answers to these questions are specific to the code, but in general, this is the style of one of the interviews.