First a few general questions about my CV and my interest in the company. Then a few typical coding excercises - on paper (which might be tricky if you're not used to it). The good thing was that they left me alone while solving the excercises, not constantly looking over my shoulder. Afterwards we went through the solutions and they asked some more questions to go deeper into the topic. Overall I felt very comfortable and think I could show well what I knew and what I didn't.