R1) System design: Design S3 like file storage system R2) Setup Library that handles specific types of files R3) Similar to Concatenated Words R4) Similar to adding two large integers represented as strings All the rounds include behavioral questions related Leadership principles.

I got a screening interview at hackerank, I had to solve a problem with Arrays, after that you need to complete 2 behavioral questionaries, they care about the Amazon values when answering those questions