Their recruitment agent found me on LinkedIn and sent me an email inviting me to a phone interview with them. The first interview wasn't so bad. They asked about OOP, sorting, and tree traversal questions. There was some coding done on collabedit. I heard back from them a week later asking for a second phone interview. The second interview was similar to the first, in which they have a question to see if you are familiar with different data structures, run times and regex.