Since I was already an intern, I went straight into the written test. The test is timed and fairly difficult, depending on your knowledge base. I barely passed but still moved on and got an offer, so I'm not sure how much they value it.

My panel interview day involved a 30-minute presentation, followed by five back-to-back 45-minute technical interviews.

Difficulty really depended on your interviewer; some asked only technical questions, while others had more of a conversation with you about design decisions relating to your project or projects at Tesla.

Pretty much just know your fundamentals and how to work through a question, even if you forget that specific topic.

Then, after you pass the panel, there's one shorter and more relaxed 30-minute technical interview with the senior manager.

Derive the hoop stress equation.

How would you go about designing this part?