Jane Street Tech Blog

Getting from tested to battle-tested

5 days ago

Advent of FPGA — A Jane Street Challenge

14 days ago

Advent of Code has long been a favorite December ritual at Jane...

What the interns have wrought, 2025 edition

3 months ago

Yet again, we’re at the end of our internship season, and so...

A Higgs-bugson in the Linux Kernel

5 months ago

We recently ran across a strange higgs-bugson that manifested itself in a...

Introducing OxCaml

6 months ago

At Jane Street, we’ve been actively making improvements to OCaml for a...

Advent of Hardcaml

9 months ago

Advent of Code is an annual Advent calendar featuring small programming puzzles...

How we accidentally built a better build system for OCaml

11 months ago

A “build system” is one of the most important tools in a...

Developer education at Jane Street

2 months ago

Like most places, Jane Street largely teaches developers through a kind of...

ICFP 2024

over 1 year ago

It’s no secret that Jane Street is an active participant in the...

What the interns have wrought, 2024 edition

over 1 year ago

We’re once again at the end of our internship season, and it’s...

Visualizing piecewise linear neural networks

over 1 year ago

Neural networks are often thought of as opaque, black-box function approximators, but...

Building reproducible Python environments with XARs

over 2 years ago

Our traders and researchers love Python for its agility and for its...