I experienced three rounds of interview. The CIO interviewed me first; then, the potential teammates; potential manager came last.
The CIO has a good understanding of commonly used algorithms, and would like to have some further discussion comparing different solutions. The potential teammates' interview is quite typical. The potential manager focused on behavior problems.
Interview questions [1]
Question 1
Finish a half-way API project. You're free to discuss with the interviewers about the implementation details; and if you forget about some syntax, you're free to google it.