Applied online, had a casual phone interview with an HR person who then sent me a hackerrank technical assessment. Invited to an individual on-site interview which had had four sub-interviews, two behavioral and two technical.

The process began with a phone interview, where standard personal interview questions were asked. A few days after I was asked to take an online programming/IT quiz on HackerRank. I was then invited to their office in Chicago for a final, in person, day-long technical interview. They took care of me through the entire process, worked with me to ensure I had a positive experience, and overall were wonderful to interact with.