One call with a recruiter, 3 calls with engineers, then an in-person interview. Things were organized quickly and I heard back within a couple days of each interview (aside from the in-person which took a few weeks to hear back).
Interview questions [1]
Question 1
What is the most technically challenging thing you have worked on, and can you walk me through your thought process?
I applied online. I interviewed at SpaceX (Brownsville, TX)
Interview
Asked technical questions regarding basic college engineering fundamentals, asked engineering portfolio questions regarding previous internship and project experiences, and asked hypotheticals based on what areas were owned on those projects.
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