After the unpredictable CV screen, I got to the phone interview.
Overall, the process was reasonably fast. Feedback, however, was nonexistent.
The phone screen involved an LC medium question, and I presented a pretty decent solution (not the best in hindsight). Apparently, that was enough to get dropped.
Not allowed to say, but if you followed a compiler course, you should be fine.
The following metrics were computed from 1 interview experience for the Jane Street Software Engineering - New Grad role in Belgium.
Jane Street's interview process for their Software Engineering - New Grad roles in Belgium is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Jane Street's Software Engineering - New Grad interview process in Belgium.