The process consists of multiple interviews and a written project. The written project is not difficult and you just need to show your technical skills. For the interviews, you do need to know your stuff incase they call you out

I was reached out by a recruiter very soon after I applied on LinkedIn. First, the recruiter rescheduled the interview and didn't inform head up. Second, it was a video interview and he wore so causal and even sat on his couch....During the interview, he just asked some random questions, and it obviously both of us were not a match, he started laughing at my previous project I've worked on. Are you kidding???So unprofessional, who even cares to work in this kind of small company, especially after meeting this rude hr