The process took 3 months. I interviewed at Relativity Space (Los Angeles, CA)
Interview
There was a straight-forward online app and sharing of resume and previous work experience, then a few short phone calls for initial screening. It took some time to get interviewing started but not too long, maybe a few weeks.
Interview questions [1]
Question 1
Most important was a presentation about myself where previous technical responsibilities were discussed and a panel of interviewers asked ad-hoc questions.