Jane Street Software Engineer Internship

The Jane Street Software Engineer Internship is a paid, mentored software engineering placement based in New York, NY. Interns work on production projects, learning and using OCaml (and sometimes Python) while paired with full-time mentors. The role runs during a May–August internship window and emphasizes software intended for production systems across trading infrastructure and programming-language design. No prior finance or OCaml experience is required.

Paid salary; mentorship from full-time engineers; hands-on experience shipping production software and learning OCaml and internal systems.

Top programmers who are intellectually curious, collaborative and eager to learn; no prior finance, OCaml, or functional programming experience required.

Apply via Jane Street (posting references Greenhouse); roles fill quickly.