Lots of technical questions: data structures, OOP concepts, operating systems, low-level system programming, C, and C++. Also included a hands-on programming exercise in the language in question.

First, a manager would call, asking general questions like why you're applying. Then, another call from the team with some general questions.

If you pass, you get an on-site interview where several different people would assess your skill level more deeply.

Why would count++ fail when executed by two or more threads, and the count variable is shared? How do you solve that?