3 rounds onsite DS algo interviews:

Very different from the interview experience I had as an SDE1, three levels earlier.

• Round 1: Although this was a DS-algo round, they focused on algorithm design and thorough corner case handling during the design phase itself, targeting graphs in depth.
• Round 2: Again, a simple file-handling question focused on scaling and sharding, with corner case handling and a good algorithm design.
• Round 3: A medium binary search question.

Files and directories:

Advanced search mechanism in the file system.