Two rounds and one phone screen. I was asked on my previous projects, tools, programming languages, unit test framework, my role and responsibiliies in the phonescreen. After that, I was brought in for two rounds of technical interview. During these two onsite interview, they focused on coding skills, problem solving skills, as well as understanding of my current projects. I have to explain my current projects, the archictecture, the pro-and cons of the approach. During coding, they ask for complexity of my solution, and ask for improvements to the solution. Multi-tasking questions was asked, but I mentioned that I don't have much experiences in this area, so they skipped.