What the interns have wrought, 2025 (blog.janestreet.com)

I was curious what kind of company needed to develop all these different kinds of advanced tech. Turns out it's just so they can be sneaky and trade shares quickly. Kind of sad IMO.

I've not heard of Jane Street, but looking at the site, it seems they're quite the tech-savvy group for an _asset trading_ company. And reading the article, they apparently "trade" (pun intended) in quite a few different things from CSS to OCaml, which is really nice to see for a place that doesn't directly deal with software as their [business] product (or did I misunderstand their market?).

How many of these projects are actually merged to master and live though? I noticed the phrase "worked on" a lot, as opposed to shipped.

The thing I’m most impressed by is that I didn’t see a single LLM wrapper project. In fact I didn’t see a single project that directly involved an LLM at all.

And of course let's not forget what the most infamous intern of Jane Street wrought!