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Jane Street Tech Blog

@jane_street@robot.villas

OCaml, functional programming, systems, and engineering at a quantitative trading firm.

Source: https://blog.janestreet.com/feed.xml

Homepage: https://blog.janestreet.com

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Posts
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Posts

  • Writing a DSL for high performance parallel programming in OxCaml #OCaml #Programming #Tech

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    Nov 6, 2026

  • Our software engineering interviews are changing (a little) #Tech #SoftwareEngineering #Programming

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    Nov 2, 2026

  • Flex Model: an event-driven feature engineering system #OCaml #Systems #Engineering

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    Oct 13, 2026

  • Building and testing a config management orchestrator for Windows #Systems #Engineering #Windows

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    Oct 6, 2026

  • Scaling and benchmarking a critical message bus using a new indexing strategy #OCaml #Systems #Performance

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    Oct 5, 2026

  • How recurring network maintenance exposed 6 bugs #Tech #OpenSource #Programming

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    Oct 2, 2026

  • Results from the ASIC puzzle #Tech #Engineering #Puzzle

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    Oct 2, 2026

  • A FUSE server for our in-house storage backend #OpenSource #Linux #Systems

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    Oct 1, 2026

  • A resilient kernel log reporter #Engineering #Linux #OpenSource

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    Oct 1, 2026

  • Can you use autoregressive diffusion to generate market data? #MachineLearning #DataScience #Finance

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    Sep 30, 2026

  • Mitigating memorization in LLMs #AI #LLM #MachineLearning

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    Sep 30, 2026

  • What the TDOE interns have wrought, 2026 edition #OCaml #InternProjects #Tech

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    Sep 30, 2026

  • Trading off compute for memory with activation checkpointing #OCaml #Systems #Engineering

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    Sep 30, 2026

  • What the SP interns have wrought, 2026 edition #OCaml #Interns #Engineering

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    Sep 30, 2026

  • What the interns have wrought, special jumbo 2026 edition #OCaml #Interns #Engineering

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    Sep 30, 2026

  • A study of sequence weighting at scale #OCaml #Programming #Systems

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    Sep 14, 2026

  • Can you design a chip? Announcing the protocol emulator ASIC competition #Hardware #Engineering #Competition

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    Sep 10, 2026

  • Can you reverse engineer an ASIC? #Hardware #Security #ReverseEngineering

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    Aug 5, 2026

  • Using OxCaml to implement type-safe reference counting between OCaml and Python #OCaml #Programming #Systems

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    Jun 15, 2026

  • Formal methods and the future of programming #Programming #FormalMethods #Tech

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    Jun 7, 2026

  • strace-ui, Bonsai_term, and the TUI renaissance #OCaml #Programming #TUI

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    May 26, 2026

  • Using group theory to explore the space of positional encodings for attention #OCaml #AI #Math

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    Apr 22, 2026

  • Can you reverse engineer our neural network? #AI #MachineLearning #OpenSource

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    Feb 24, 2026

  • Results from the Advent of FPGA Challenge #FPGA #Hardware #Engineering

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    Feb 11, 2026

  • I design with Claude more than Figma now #AI #Programming #Design

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    Feb 5, 2026

  • Fun with Algebraic Effects - from Toy Examples to Hardcaml Simulations #OCaml #Programming #Systems

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    Jan 6, 2026

  • Getting from tested to battle-tested #SoftwareEngineering #Testing #OCaml

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    Dec 3, 2025

  • Advent of FPGA -- A Jane Street Challenge #FPGA #Hardware #Engineering

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    Nov 24, 2025

  • What the interns have wrought, 2025 edition #OCaml #Interns #Engineering

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    Aug 27, 2025

  • A Higgs-bugson in the Linux Kernel #Programming #OpenSource #Systems

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    Jul 2, 2025

  • Introducing OxCaml #OCaml #Programming #Tech

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    Jun 14, 2025

  • Advent of Hardcaml #OCaml #FP #Hardware

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    Mar 22, 2025

  • How we accidentally built a better build system for OCaml #OCaml #Programming #OpenSource

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    Jan 24, 2025

  • Developer education at Jane Street #OCaml #Programming #Education

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    Oct 4, 2024

  • ICFP 2024 #OCaml #Programming #Conference

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    Aug 29, 2024

  • What the interns have wrought, 2024 edition #Interns #Tech #OCaml

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    Aug 26, 2024

  • Visualizing piecewise linear neural networks #MachineLearning #NeuralNetworks #DataScience

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    Jul 22, 2024

  • What the interns have wrought, 2023 edition #Internship #Tech #OCaml

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    Sep 12, 2023

  • Oxidizing OCaml: Data Race Freedom #OCaml #Programming #Systems

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  • We're sponsoring SoME3 #Tech #Sponsorship #Community

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