Decent human beings checking if you'll be a good fit for the team and for the development process.

1st round: Friendly HR, curious to hear about your motivation and growth plan.

2nd round: Smart hiring managers that are very tech-savvy and eager to quiz you to determine if you'll provide good added value and how long it might take to train you.

I did not get an offer, but the feedback was on point, constructive, and everything was super civilized.

.NET under the hood, Garbage collection, Why go from Framework to Core, OOP basics, SOLID with examples, Value vs Reference types, Data Structures, SQL queries, Process vs Thread