I had three rounds of interviews, each one hour long.

• Round 1: With a principal engineer. This included half generic phone screen questions and half easy C language questions.
• Round 2: With a senior engineer on the team. This involved a run-through of my resume and previous work experience, followed by two coding questions.
• Round 3: With a senior engineer on the team. This also included a run-through of my resume and previous work experience, followed by one harder coding question.

An offer was extended a week after the final round.

Simple C language questions, such as:

• static
• volatile
• custom memory allocators

Technical coding questions related to bit manipulation and string manipulation.