I applied online. The process took 2 weeks. I interviewed at SpaceX (New York, NY) in Aug 2021
Interview
There was a half hour phone call with a recruiter, then the same with an engineer for second round. They ask about experience related to the position as well as problem solving abilities.
Interview questions [1]
Question 1
What was the most difficult 0roblem you've solved and how?
Multiple rounds of interviews ending with an all day onsite interview. Asked questions about background, classic textbook problems, and coworker interactions. Very technical and difficult. Lots of time spent trying to understand your thought process
4 rounds, 1 with technical recruiter, 1 with engineer, 1 with manager, and onsite. first 3 are over the phone. onsite was the challenge, consists of presentation, one-on-ones, and tour.
Rigorous but fairly reasonable in my experience. The technical problems often has a twist but if you have strong fundamentals you should be able to perform well. The recruiter and interviewers I interacted with are all very nice people.