Two coding phone screens. Both had moderately difficult questions related to strings and substrings.

One system design interview - the interviewer was very disinterested and very quiet, and didn't participate much.

Two coding interviews:

• One involved a string-related question again.
• Another was an array question that used the concept of local minima to predict where rainwater would settle on a terrain.

One architecture interview - a very senior person conducted this interview. You need to discuss a high-impact project you completed, going through its complexities and key decisions made.

Many string search related questions appear in coding interviews.