The hiring manager called me for phone interview and told me that he would schedule for face to face at the end. Never heard back from the guy again, never called me, never emailed me, never reply my email or return my phone call. It is completely unprofessional.

First, submitted application via website for HR to review. Then, interviewed in person with multiple people over the course of two days: Hiring Manager Director Team (to see if it’s a good fit) GM VP for final approval