I applied online. The process took 1 day.
Recruiter Phone screen - about a thirty-minute interview with questions about past and current work / projects - digging deeper into those projects, time complexity of various operations including binary search, list insertion, one other one that I can't remember like hashmap lookup or something, time at the end to ask questions.
Recruiter said that SpaceX rarely hires for senior level roles even though I am currently senior level at FAANG+, so that was kinda weird that they are already signaling that they want to down-level me in the recruiter phone screen.
Questions about past and current work / projects:
The following metrics were computed from 162 interview experiences for the SpaceX Software Engineer role.
SpaceX's interview process for their Software Engineer roles is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for SpaceX's Software Engineer interview process.