I had previously interned and was contacted by Google rather than applying myself. As a result, I did not have to do phone interviews (I had completed two phone interviews for the internship two years earlier). Instead, I was invited to onsite interviews.

As this was for an L4 role, there were five interviews:

• 3 coding interviews
• 1 system design interview
• 1 leadership interview

The coding interviews involved typical data structure and algorithms questions. Solutions required BFS, heaps, sorting, dynamic programming, and recursion.

The leadership interview questions had the typical shape of "Tell me about a time when..." and "What would you do if...".