Uber Simulation Scientist interview questions

I have an internal refer, so the recruiter contacted with me very soon. I had a phone screen, followed by a home work. The home work includes both modeling concept and coding, which is very challenging. Then I had a phone interview with a senior OR expert, I didn't respond enough for his question about Uber eats, which may be lack of interview experience. But I also felt the competition for the position and the high requirements. Overall, the interview process gives you a flavor of their work and I think it worth my time to give it a try.