I met with the CTO, VP of Engineering, and an engineer who I'd be working with, for about 10-20 minutes each. The CTO gave me an overview of the company and why they were hiring for the position. The VP of Engineering asked me questions about my background and some verbal problem solving scenarios to understand the depth of my knowledge on the topics. The engineer had planned on having me perform a hands-on coding test, but it turned out that I did not have experience with the framework that they used, and so it would not have been possible for me to be successful at the test, so that was abandoned. He asked me more about my background, then after conferring with the VP of engineering, told me that they would consider it and would be in contact soon.
It was a pretty laid back interview, and lasted about 1 hour total. Everyone was pleasant to talk to.