Functional Programming at Jane Street

I'm hopeful this will be of interest to LtU readers.

Jane Street, a proprietary trading company with offices in New York, London and (soon) Hong Kong is actively looking to hire talented functional programmers.

We're looking for people who have a deep interest in and understanding of software and technology. We're not particularly looking for experience with financial markets --- that's something we believe we can teach people on the job.

Jane Street is deeply committed to functional programming, having the largest team of OCaml programmers in any industrial setting, and probably the world's largest OCaml codebase. We use OCaml for running our entire business, supporting everything from research to systems administration to trading systems. If you're interested in seeing how functional programming plays out in the real world, there's no better place.

The atmosphere is informal and intellectual. There is a focus on education, and people get a chance to learn both about software and about trading. The work is challenging, and you get to see the practical impact of your efforts in quick and dramatic terms. Jane Street is also a small enough place that people have the freedom to get involved in many different areas of the business. Compensation is highly competitive, with a great deal of room for growth.

If you'd like to learn more, you can get an overview of the firm from our main website. There's also a talk I gave at CMU a while back that gives a good overview of what Jane Street does and why we use OCaml, and we have an OCaml blog. Finally, you can check out a couple of papers we've written about our experiences using functional languages here.

If you're interested, send a resume and cover letter to