It consisted of three parts:

First, a telephone call interview where I was asked technical questions regarding C/C++ programming, OOP, operating systems, and a bit of networking.

The second part was an online programming test. The test involved creating a function to find and return the second occurrence of a character in a string, then measuring its complexity. I had 30 minutes and had to do it in C or C++.

The third part of the interview was a face-to-face interview. The first part was behavioral, and the second part was technical, with questions and design problems regarding C/C++, OOP, OS's, and networking.

What is a heap and a stack?

OOP and imperative programming difference.

Difference between pointers and references?

What is backtracking?

What is a hash table?

Difference between a normal and a library system call?

What is a deadlock?

Considerations for multi-threading programming?

Why would a C program exit before entering main()?

What is a caller and a callee function?

What is a binary tree used for?

Simple and double linked list difference?

What is a system call?