I had a first-round interview. The person was nice but kept asking questions and probing into everything I said.
You should definitely know the time complexity of anything you mention, as that will be asked.
Create an algorithm and its time complexity.
The following metrics were computed from 21 interview experiences for the Jane Street Software Engineer (Internship) role in United States.
Jane Street's interview process for their Software Engineer (Internship) roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Jane Street's Software Engineer (Internship) interview process in United States.