The interview process included a management/behavioral interview and technical interviews covering C, C++, multi-threading, discussing some bad code examples, and writing code.

Due to COVID-19 and the distributed nature of Roku (offices in at least six different time zones), all interviews were conducted via webcam. I made sure to ask what the typical desk and local office look like.

I don't want to spoil the surprise for anyone else.

If you've mentioned something technical on your CV, like optimizing binary tree rebalancing, then expect to be asked about it.

None of the questions should be surprising to anyone who has been through this before.