# What the interns have wrought, 2024 edition

DevFeed: [What the interns have wrought, 2024 edition](<https://devfeed.tech/articles/what-the-interns-have-wrought-2024-edition-20237.md>)

Original publisher: [Read original article](<https://blog.janestreet.com/what-the-interns-have-wrought-2024-edition-index/>)

Author: Yaron Minsky

Published: 2024-08-26T00:00:00Z

Content type: article

Language: en

Sources: [Jane Street](<https://devfeed.tech/sources/jane-street.md>)

Topics: [OCaml](<https://devfeed.tech/topics/ocaml.md>), [data](<https://devfeed.tech/topics/data.md>), [Concurrency](<https://devfeed.tech/topics/concurrency.md>), [build times](<https://devfeed.tech/topics/build-times.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [Programming](<https://devfeed.tech/topics/programming.md>)

Tags: [build-times](<https://devfeed.tech/tags/build-times.md>), [concurrency](<https://devfeed.tech/tags/concurrency.md>), [data](<https://devfeed.tech/tags/data.md>), [incremental](<https://devfeed.tech/tags/incremental.md>), [internship](<https://devfeed.tech/tags/internship.md>), [ocaml](<https://devfeed.tech/tags/ocaml.md>), [programming](<https://devfeed.tech/tags/programming.md>), [rust](<https://devfeed.tech/tags/rust.md>)

## AI overview

Jane Street's 2024 internship review highlights projects involving an OCaml dataframe library, a faster but less compact binary-serialization protocol, and improvements to a time-travel debugger. It also explains why the company is exploring OCaml alternatives to Polars for safer parallelism and better build performance.

## Source excerpt

We're once again at the end of our internship season, and it's time do our annual review of what the interns achieved while they were here.