The interview process begins when their recruiter Donnie contacts you through email or websites like hired.com
From there you talk about your background and then she will send a take home test.
Beware applicants, this test is given before you speak with an engineer. This take home test is 5 day assignment.
My advice to young devs, if you are new graduate give it a try. However, if experienced, dont waste time doing a test before you meet their development team.
Forgot to add, that after the test you will get a generic rejection with no feedback regarding your code.
If you look through github, you will see that alot of people have taken their test and have received the same rejection results with no feedback.