First, they send you to HackerRank where you answer two coding questions. Then, you have an in-person interview, followed by an on-site interview. After that, you would get the offer. It's a fairly straightforward process.
HackerRank - Binary Tree & Basic Java Program
The following metrics were computed from 21 interview experiences for the Optiver SWE Intern role in United States.
Optiver's interview process for their SWE Intern roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for Optiver's SWE Intern interview process in United States.