Went through 4 rounds of phone interviews. There were some technical questions regarding mechanics and statics. Can vary the number of technical questions asked during the different rounds. Asked in-depth questions about your project focus.
I applied online. The process took 2 weeks. I interviewed at SpaceX (Redmond, WA)
Interview
Phone call with two different team leads for hardware and verification, walk through resume and technical questions regarding pcb design choices and circuit schematics. Asked about most significant past project
Interview questions [1]
Question 1
Describe your most challenging technical project and how did you overcome/ what tools did you use to solve the challenge
I applied through an employee referral. I interviewed at SpaceX
Interview
Phone call with two people. Went straight into technical questions, no lead up. Did about three technical questions and then went on to a few brain teasers that I can't remember the specifics of.
Interview questions [1]
Question 1
Asked financial and managerial questions about running a Starbucks.