I applied online. The process took 2 weeks. I interviewed at SpaceX (Brownsville, TX) in Mar 2022
Interview
The first call I had was with a recruiter then the second is with an engineer for technical questions. They ask a lot of basic engineering questions so prepare accordingly.
First was with a lead engineer (technical), then with a recruiter (behavioral), then with another lead engineer (technical), future would have been on site. It was a very accelerated timeline and fast process.
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
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.