They will give you a home test first, then a phone interview. During the phone interview, interviewer will ask your background and how you solve the home test problem. It will last half an hour. Interview might ask you some basic data structure questions like what is array, map, linkedlist in general.

Recruiter and interviewer were both very nice throughout the process, and generally responded quickly. I was initially contacted after submitting a survey through my university. Then, I had a coding challenge relevant to my position, and phone interview following that.