A recruiter caught up to me with three similar positions and set up a phone interview. An engineer from the team conducted a coding test over the phone. After passing that stage, I was called for an onsite interview. Three two-person panels and finally a single person conducted the interview. Except for the last person, everyone else jumped into whiteboard coding right away. Finally, the recruiter got back to me saying I wasn't selected to move forward in the position. Overall, the interviews were good and not too hard. However, the attitudes of the engineers on the interview panel were a bit weird. They would all come and sit with a poker face. After seeing the team, I wasn't too sure anyway if I would have joined that team or not.

Count bits set in a byte.

Write the code for a memory manager (init, get_memory, free_memory, etc.).

Given two sorted arrays, get the i-th element without sorting to a single array.

memcpy code with overlap protection.

Code optimization of existing code printed on paper.