Several questions.
One involves Tetris.
Generally fast-paced.
Implementation accuracy is important.
People seem smart.
Overall difficulty is probably moderate to difficult.
Be prepared if you are going to interview.
There will be a phone question, then three final rounds.
Build Tetris.
No need to build the UI.
The following metrics were computed from 75 interview experiences for the Jane Street Software Engineer role in United States.
Jane Street's interview process for their Software Engineer 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 interview process in United States.