First, I received a link to solve two coding questions within 90 minutes. Nothing too complex, focusing on string manipulation and general data structures, with an emphasis on HashMaps. Then, I had two phone interviews with two engineers. It took me a while to understand the questions asked by the engineers. They didn't make it very clear if I was asking the right questions.

Full design question involving doubly linked lists. Make sure to know how and when to use wrapper classes.