One phone interview with Director of Engineering, then one in-person interview with Director of Engineering, Two Senior Engineers, CPO, and CEO (individually). The Director was interested in my experience, the engineers were interested in my knowledge, and the C level folks were interested in my plans/aspirations. Overall the process was fairly enjoyable. After the in person interviews, I was invited to take part in a company lunch that was happening so I was given free food and everyone was really cool.