Two batches of online tests that must be done alone on a website. They are of similar lengths and sum up to ~8 hours. It's long, but the exercises are interesting, even entertaining. Both easy and difficult ones, both coding exercises and multiple choice questions. Then two interviews, the first was short, with a member of the recruitment team who asked about me and my experience, the second was longer, with a developer who also gave me 2 problems to solve live. Having a prior experience in Android was not a requirement to do any of the problems, who rather focused on the general problem-solving ability. Both interviewers were very nice and made sure I felt comfortable. Lovely people! Then they asked me to provide names of 3 friends/colleagues so that they can ask them what they think of me, how they perceive working with me etc. From sending my application to getting an offer, the whole process took ~2 months.