The process took 2 weeks. I interviewed at Sensor Tower (SF, CA) in July 2018. The first round was a take-home coding challenge which was of medium difficulty. Got good reviews on the coding test. Next, there was a product demo round where one of the founders walked me through their product. I had a great conversation and it was helpful. The next round was On-Site. There were 2 coding rounds and 1 technical round with the founder, then team meeting and lunch. Really enjoyed talking to each of the engineers, the team, and the founders. The HR was very welcoming and did a great job in organizing the interview and made me feel very comfortable welcomed. Really good office culture and very polite team.