Jane Street SWE Intern NYC | OCaml $300k Base May-Aug
Rolling applications — apply early
| Company | Jane Street — quantitative trading / technology firm |
| Role | Software Engineer Internship (May–August) |
| Location | New York, NY, United States |
| Pay | $300,000 base salary (annualized, as listed on Jane Street careers for this posting) |
| Stack | OCaml (primary — taught on the job); some teams also use Python |
| Work | Paired with full-time mentors on real production projects — from high-performance trading systems to programming-language design |
| Background | No finance / OCaml experience required — top programmer, curious, collaborative, humble |
Overview
Jane Street’s SWE internship is built to feel like full-time work plus a deep educational experience. You’re paired with full-time engineers who mentor you on projects their teams actually need — software intended to reach production.
You’ll learn how Jane Street uses OCaml day to day (and their internal libraries/tools). Depending on the team, you may also write Python. Project scope spans high-performance trading systems, programming language design, and everything in between. Finance background is not required.
Key Requirements
- Mindset: Top-notch programmer who loves technology; intellectually curious, collaborative, eager to learn; humble — ask questions and admit mistakes.
- Background: No prior finance, OCaml, or functional programming required — they care more about how you think and learn.
- What you’ll do: Ship mentored production software; learn OCaml + Jane Street’s systems; possibly Python; tackle problems from trading infra to PL design.
- Logistics: New York office; May–August internship window (per posting title); apply via Jane Street / Greenhouse.
Free · private · instant
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