Not a pleasanrt experience interviewing with them and chatting with their Senior Director. I work for a top tier FAANG company, was not really interested in an unknown company. The recruiter literally pleaded me to have a chat with their Senior Director. I agreed and then a phone screen was setup on a Friday. 15 minutes before the call was scheduled, got a call from the Senior Director that he ran into last minute conflict. I reality agreed to have it rescheduled, but he kept relenting that he wanted to chat with me over the weekend. When he requested repeatedly, found a slot the very next day which was Saturday. In the interview he asked to solve a simple problem related to factorial. Are you kidding, you ask a FAANG Senior Engineer such stuffs? He then asked me send a different version of the code through email, I did it immediately after the discusson. He responded the next day, someone will contact me back for another PS. Its almost 3.5 weeks, no response. Although I am not losing my sleep to hear back from them, but not a serious company seeing the unprofessional attitude and their lack of seriousness.