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Latest posts
Last updated 25 days ago
Advent of Hardcaml
about 2 months ago
Advent of Code is an annual Advent calendar featuring small programming puzzles...
How we accidentally built a better build system for OCaml
4 months ago
A “build system” is one of the most important tools in a...
Developer education at Jane Street
5 months ago
Like most places, Jane Street largely teaches developers through a kind of...
What the interns have wrought, 2024 edition
9 months ago
We’re once again at the end of our internship season, and it’s...
Visualizing piecewise linear neural networks
10 months ago
Neural networks are often thought of as opaque, black-box function approximators, but...
Building reproducible Python environments with XARs
about 2 years ago
Our traders and researchers love Python for its agility and for its...
What if writing tests was a joyful experience?
over 2 years ago
At Jane Street we use a pattern/library called “expect tests” that makes...
Accelerating zk-SNARKs - MSM and NTT algorithms on FPGAs with Hardcaml
over 2 years ago
In 2022 a consortium of companies ran an international competition called the...
Visualizing information propagation in markets
over 2 years ago
The Dojima rice market, established around 1716, is widely considered to be...
Computations that differentiate, debug, and document themselves
over 2 years ago
One of the problems we wrestle with at Jane Street is how...
Introducing the Jane Street Graduate Research Fellowship
over 2 years ago
We are excited to announce the launch of the Jane Street Graduate...