The recruiter reached out to me on LinkedIn with the position and asked to schedule a call on his calendar. I booked a call on his calendar which he didn't show up. Then he asked for reschedule, and didn't show up again in the rescheduled meeting, it was totally unprofessional :D. This was a red flag at this stage and I stopped following with him. Given I had been working in FAANG any other big tech companies I know the recruitment process is always the best way to get an understanding of the company's culture!