I applied online. The process took 2 months. I interviewed at Mars (Chicago, IL) in Feb 2018
Interview
Its starts with an email inviting you to schedule phone interview. Next step is Technical assessment. If you make it to next round you will receive email (in about two weeks) inviting you to schedule an interview with managers.
Interview questions [1]
Question 1
There are 4 scenarios and ways you solved the problem.