Course Hero Software Engineer interview experience

One of the questions asked for what the number 15 would look like in 2-bit form, which immediately pushed me to think in terms of representation instead of just normal arithmetic. Then I was given a more practical database task: using two tables, I had to write two queries involving a left join and an aggregation function in MySQL.

The whole thing felt like an average-difficulty test—technical, but not random. It was more about accuracy and being able to reason through how the data operations should work than about memorizing anything exotic. I didn’t get an offer, but the questions were