Quick, very professional, and friendly.

First, there was a one-on-one meeting in the company office. This was around a two-hour session with coding and one whiteboard question.

The second stage interview was a phone call with three people, covering some theoretical questions and hands-on exercises on a remote Linux server with GCC, a preferred console editor, and GDB.

There were no unnecessary processes; it was a straight, very technical, engineer-to-engineer conversation only.

• malloc implementation
• stack implementation
• binary tree: sum of all elements
• check if a string is a palindrome
• function call and what happens on the stack
• Some C programs where you need to tell what they do
• memory segments