I applied online and received a reply a while later about scheduling a two-hour Skype interview. They mentioned they were busy, so it took a few more weeks before I actually interviewed.

I interviewed with two separate engineers. They seemed fairly nice, but both of them jumped right into having me solve technical questions.

The first interview involved the elevator design problem.

The second interview was about making a deep copy of a linked list with both 'next' and 'random' pointers to a node in the list.

There is so much that goes into the elevator design problem. I didn't think fast enough to write out a good solution and code it.