There were two onsite sessions in the Ankara office for the technical interview. I interviewed two people in each session.

After passing the onsite interview, there was another technical interview with a senior person from the San Francisco office, and a behavioral interview with the VP from the San Francisco office.

Object-oriented design of Udemy's course, category, and discovery unit entities.

Software engineering questions about object-oriented design principles and design patterns.

ER diagram of the object-oriented design question and some SQL questions.

Algorithm question about queue, stack, hashmap, and linked list usage.

System design of Udemy's recommendation system.

Behavioral questions about my previous successes, failures, what people say about me, misconceptions about me, etc.