I applied through an employee referral. The process took 2 days. I interviewed at NIO
Interview
It's typical silicon valley interview process. HR will first schedule a 45 min phone screen interview. After that you will be asked for in-person interview. Typically there will be 5 interviewers each having 45 minute time slot with you.
Interview questions [1]
Question 1
Most of interview questions are related to your programming skills, and OS knowledge. Any experience with open source, and developing a product from scratch is considered very positive.
Four rounds
1. Coding, leetcode easy / medium level
2. Coding, React to implement a timer count down
3. System design, Youtube TopK in a given sliding window
4. HM interview