I applied online. The process took 4 weeks. I interviewed at SpaceX (Cape Canaveral, FL)
Interview
Technical/Behavioral Interview with the team and hiring manager. Was pretty easy and straight forward. Recruiter's were very helpful and it was a fast process. Just know your resume and make sure you can back it up.
Interview questions [1]
Question 1
Tell us about yourself and why do you want to work at SpaceX