There was a phone screen that asked typical data structures/algorithms questions.

Then, an onsite interview included one round of data structures/algorithms and several rounds of what was essentially Java trivia. For example, candidates were asked to spout the names of some design patterns, but there were no follow-up questions about what they actually do.

There was a lunch break where one engineer took me out to a nearby restaurant.

Name some design patterns.

Name classes in Java.util.

Write a method to prove a binary tree is symmetric.

What's the difference between an abstract class and an interface?

What is reactive programming in Java?