Jane Street developers and principals project a "holier-than-thou" image. They are too good for you.
The homogeneity of this cluster of like-minded people is also their undoing; alternate viewpoints and backgrounds are looked down upon. Such attitudes are already endemic within the entire OCaml community, but Jane Street takes them to a whole new level.
The probability of joining this company is less than 10^(-5), according to a newspaper ranking of the top 10 hardest companies to get into. I'd argue that it's not worth it to even consider Jane Street seriously; there are no learning experiences to be had from contacting this OCaml shop.
Probability questions.
Explain continuation-passing style.
How to make OCaml programs do parallel processing.
The following metrics were computed from 1 interview experience for the Jane Street Ocaml Software Engineer role in New York, New York.
Jane Street's interview process for their Ocaml Software Engineer roles in New York, New York is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Jane Street's Ocaml Software Engineer interview process in New York, New York.