There were 5 rounds of mostly practical interviews, each with its own topic. -General Background: Demonstrate an understanding of your projects and the technologies you've used. -Data & Design: Demonstrate an understanding of database design. -Java and Object-Oriented Design: Demonstrate an understanding of good design in Java and OOP. -Distributed Systems: Demonstrate an understanding of distributed systems design, consistency, availability, and fault-tolerance. -Company Culture: Listen to a description of the company culture, then demonstrate an understanding and interest.