Applied on their website. Contacted by the recruiter right away. Talked to her first on the phone. Mainly about my background and why I am interested in Tumblr. After a couple day, she set up a phone interview for me to talk to one of the team member. I had to do some online coding during the interview. Not too hard, but I made some stupid mistake. Guess it ruined the whole game. The whole experience is pretty smooth and fast. I hadn't heard back from them more 2 weeks after the phone interview so I shot an email and was told they were not going to continue.