I applied through an employee referral. The process took 2 weeks. I interviewed at Infer (San Francisco, CA) in Oct 2016
Interview
Phone screen with a hiring manager. Then coding interview with a team member. The algorithm question wasn't that hard but required preparation and practice before hand. The interviewer was flexible and allow the use of any programming languages.
Interview questions [1]
Question 1
Order list of airports so that the itinerary timeline makes sense.