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"https://blog.janestreet.com/putting-the-i-back-in-ide-towards-a-github-explorer/", "published_at": "2018-03-27T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f270e811", "title": "Learn OCaml in NYC", "url": "https://blog.janestreet.com/learn-ocaml-nyc/", "published_at": "2018-02-16T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f31e376b", "title": "Proofs (and Refutations) using Z3", "url": "https://blog.janestreet.com/proofs-and-refutations-using-z3/", "published_at": "2018-02-15T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f3dad3c8", "title": "Work on the OCaml compiler at Jane Street!", "url": "https://blog.janestreet.com/work-on-the-ocaml-compiler-at-jane-street/", "published_at": "2017-12-20T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f3dcb3b8", "title": "Does batch size matter?", "url": "https://blog.janestreet.com/does-batch-size-matter/", "published_at": "2017-10-31T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f408d05a", "title": "How Jane Street Does Code Review (Jane Street Tech Talk)", "url": "https://blog.janestreet.com/jane-street-tech-talk-how-jane-street-does-code-review/", "published_at": "2017-10-29T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f46199ba", "title": "Jane Street Tech Talk, Verifying Network Data Planes", "url": "https://blog.janestreet.com/jane-street-tech-talk-verifying-network-data-planes/", "published_at": "2017-09-26T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f476a180", "title": "Real world machine learning (part 1)", "url": "https://blog.janestreet.com/real-world-machine-learning-part-1/", "published_at": "2017-08-28T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f53d5557", "title": "How to design a tree diffing algorithm", "url": "https://blog.janestreet.com/how-to-design-a-tree-diffing-algorithm/", "published_at": "2017-08-25T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f546be0e", "title": "Ironing out your development style", "url": "https://blog.janestreet.com/ironing-out-your-development-style/", "published_at": "2017-08-24T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f557f0aa", "title": "Hiring an FPGA engineer", "url": "https://blog.janestreet.com/hiring-an-fpga-engineer/", "published_at": "2017-08-16T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f614ec29", "title": "What the interns have wrought, 2017 edition", "url": "https://blog.janestreet.com/what-the-interns-have-wrought-2017/", "published_at": "2017-08-14T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f627349b", "title": "When Bash Scripts Bite", "url": "https://blog.janestreet.com/when-bash-scripts-bite/", "published_at": "2017-05-11T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f6dbc749", "title": "Looking for a technical writer", "url": "https://blog.janestreet.com/looking-for-a-technical-writer/", "published_at": "2017-05-01T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f7054b25", "title": "Caveat Configurator: how to replace configs with code, and why you might not want to", "url": "https://blog.janestreet.com/caveat-configurator-how-to-replace-configs-with-code-and-why-you-might-not-want-to/", "published_at": "2017-04-25T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f7562e71", "title": "This is not the performance you were looking for: the tricks systems play on us", "url": "https://blog.janestreet.com/this-is-not-the-performance-you-were-looking-for-the-tricks-systems-play-on-us/", "published_at": "2017-04-20T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f7f5e95f", "title": "Trivial meta-programming with cinaps", "url": "https://blog.janestreet.com/trivial-meta-programming-with-cinaps/", "published_at": "2017-03-20T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f89bcb5e", "title": "One more talk, two more videos", "url": "https://blog.janestreet.com/one-more-talk-two-more-videos/", "published_at": "2017-03-15T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f997e604", "title": "What a Jane Street software engineering interview is like", "url": "https://blog.janestreet.com/what-a-jane-street-dev-interview-is-like/", "published_at": "2017-02-28T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f9e7816e", "title": "Jane Street Tech Talks: Verifying Puppet Configs", "url": "https://blog.janestreet.com/jane-street-tech-talks-verifying-puppet-configs/", "published_at": "2017-02-16T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02f9f2f664", "title": "How to Build an Exchange", "url": "https://blog.janestreet.com/how-to-build-an-exchange/", "published_at": "2017-01-11T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02fa5d5d40", "title": "A brief trip through Spacetime", "url": "https://blog.janestreet.com/a-brief-trip-through-spacetime/", "published_at": "2017-01-09T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02fa9dc038", "title": "A solution to the ppx versioning problem", "url": "https://blog.janestreet.com/an-solution-to-the-ppx-versioning-problem/", "published_at": "2016-11-08T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02fb05b3fc", "title": "Observations of a functional programmer", "url": "https://blog.janestreet.com/observations-of-a-functional-programmer/", "published_at": "2016-10-27T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02fb185f24", "title": "What the interns have wrought, 2016", "url": "https://blog.janestreet.com/what-the-interns-have-wrought-2016/", "published_at": "2016-09-13T00:00:00+00:00" }, { "id": "01a07df1-cd3a-7340-aa07-df02fb989dfc", "title": "Unraveling of the tech hiring market", "url": "https://blog.janestreet.com/unraveling/", "published_at": "2016-08-31T00:00:00+00:00" } ] posts Claim your blog

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Jane Street Tech Blog

blog.janestreet.com

2026

A study of sequence weighting at scale original ↗

14 Sept 2026

Can you design a chip? Announcing the protocol emulator ASIC competition original ↗

10 Sept 2026

Can you reverse engineer an ASIC?original ↗

5 Aug 2026

Using OxCaml to implement type-safe reference counting between OCaml and Python original ↗

15 Jun 2026

Formal methods and the future of programming original ↗

7 Jun 2026

strace-ui, Bonsai_term, and the TUI renaissance original ↗

26 May 2026

Using group theory to explore the space of positional encodings for attention original ↗

22 Apr 2026

Can you reverse engineer our neural network?original ↗

24 Feb 2026

Results from the Advent of FPGA Challenge original ↗

11 Feb 2026

I design with Claude more than Figma now original ↗

5 Feb 2026

Fun with Algebraic Effects - from Toy Examples to Hardcaml Simulations original ↗

6 Jan 2026

2025

Getting from tested to battle-tested original ↗

3 Dec 2025

Advent of FPGA — A Jane Street Challenge original ↗

24 Nov 2025

What the interns have wrought, 2025 edition original ↗

27 Aug 2025

A Higgs-bugson in the Linux Kernel original ↗

2 Jul 2025

Introducing OxCaml original ↗

14 Jun 2025

Advent of Hardcaml original ↗

22 Mar 2025

How we accidentally built a better build system for OCaml original ↗

24 Jan 2025

2024

Developer education at Jane Street original ↗

4 Oct 2024

ICFP 2024 original ↗

29 Aug 2024

What the interns have wrought, 2024 edition original ↗

26 Aug 2024

Visualizing piecewise linear neural networks original ↗

22 Jul 2024

2023

What the interns have wrought, 2023 edition original ↗

12 Sept 2023

Oxidizing OCaml: Data Race Freedom original ↗

1 Sept 2023

We're sponsoring SoME3 original ↗

6 Jul 2023

Oxidizing OCaml: Rust-Style Ownership original ↗

21 Jun 2023

Oxidizing OCaml: Locality original ↗

26 May 2023

Building reproducible Python environments with XARs original ↗

14 Apr 2023

What if writing tests was a joyful experience?original ↗

9 Jan 2023

2022

Accelerating zk-SNARKs - MSM and NTT algorithms on FPGAs with Hardcaml original ↗

7 Dec 2022

Visualizing information propagation in markets original ↗

23 Nov 2022

Computations that differentiate, debug, and document themselves original ↗

17 Nov 2022

Introducing the Jane Street Graduate Research Fellowship original ↗

30 Aug 2022

What the interns have wrought, 2022 edition original ↗

25 Aug 2022

Research internships in our Tools and Compilers group original ↗

4 Mar 2022

How Jane Street Pairs Interns to Projects and Teams During the Software Engineering Internship original ↗

14 Jan 2022

Magic-trace: Diagnosing tricky performance issues easily with Intel Processor Trace original ↗

11 Jan 2022

2021

Hiring a Developer Educator original ↗

21 Oct 2021

Goodbye Core_kernel original ↗

26 Aug 2021

What the interns have wrought, 2021 edition original ↗

9 Aug 2021

Looking for a developer experience engineer original ↗

15 Jun 2021

2020

Growing the Hardcaml toolset original ↗

1 Dec 2020

Announcing Our Market Prediction Kaggle Competition original ↗

24 Nov 2020

Finding memory leaks with Memtrace original ↗

6 Oct 2020

Memory allocator showdown original ↗

15 Sept 2020

Announcing Signals and Threads, a new podcast from Jane Street original ↗

31 Aug 2020

What the interns have wrought, 2020 edition original ↗

17 Aug 2020

The Jane Street Interview Process — 2020 Edition original ↗

24 Jul 2020

Really low latency multipliers and cryptographic puzzles original ↗

22 Jun 2020

Using ASCII waveforms to test hardware designs original ↗

1 Jun 2020

Chrome extensions: Finding the missing proof original ↗

17 Apr 2020

Watch all of Jane Street's tech talks original ↗

20 Feb 2020

Troubleshooting systemd with SystemTap original ↗

3 Feb 2020

2019

Using Python and OCaml in the same Jupyter notebook original ↗

16 Dec 2019

Deep-Learning the Hardest Go Problem in the World original ↗

6 Dec 2019

Commas in big numbers everywhere: An OpenType adventure original ↗

14 Oct 2019

What the interns have wrought, 2019 edition original ↗

30 Aug 2019

Using OCaml to drive a Raspberry Pi robot car original ↗

19 Aug 2019

Do applied programming languages research at Jane Street!original ↗

16 Aug 2019

A look at OCaml 4.08 original ↗

12 Jul 2019

Of Pythons and Camels original ↗

9 Jul 2019

Thoughts from AAAI 2019 original ↗

13 May 2019

Learning ML Depth-First original ↗

17 Apr 2019

Machining the ultimate hackathon prize original ↗

28 Feb 2019

Accelerating Self-Play Learning in Go original ↗

28 Feb 2019

Playing Atari Games with OCaml and Deep Reinforcement Learning original ↗

2 Feb 2019

L2 Regularization and Batch Norm original ↗

29 Jan 2019

A tutorial for building web applications with Incr_dom original ↗

15 Jan 2019

2018

How to shuffle a big dataset original ↗

26 Sept 2018

Deep learning experiments in OCaml original ↗

20 Sept 2018

What the interns have wrought, 2018 edition original ↗

6 Aug 2018

Plans for OCaml 4.08 original ↗

29 Jun 2018

Repeatable exploratory programming original ↗

22 Apr 2018

OCaml all the way down original ↗

4 Apr 2018

Putting the I back in IDE: Towards a Github Explorer original ↗

27 Mar 2018

Learn OCaml in NYC original ↗

16 Feb 2018

Proofs (and Refutations) using Z3 original ↗

15 Feb 2018

2017

Work on the OCaml compiler at Jane Street!original ↗

20 Dec 2017

Does batch size matter?original ↗

31 Oct 2017

How Jane Street Does Code Review (Jane Street Tech Talk)original ↗

29 Oct 2017

Jane Street Tech Talk, Verifying Network Data Planes original ↗

26 Sept 2017

Real world machine learning (part 1)original ↗

28 Aug 2017

How to design a tree diffing algorithm original ↗

25 Aug 2017

Ironing out your development style original ↗

24 Aug 2017

Hiring an FPGA engineer original ↗

16 Aug 2017

What the interns have wrought, 2017 edition original ↗

14 Aug 2017

When Bash Scripts Bite original ↗

11 May 2017

Looking for a technical writer original ↗

1 May 2017

Caveat Configurator: how to replace configs with code, and why you might not want to original ↗

25 Apr 2017

This is not the performance you were looking for: the tricks systems play on us original ↗

20 Apr 2017

Trivial meta-programming with cinaps original ↗

20 Mar 2017

One more talk, two more videos original ↗

15 Mar 2017

What a Jane Street software engineering interview is like original ↗

28 Feb 2017

Jane Street Tech Talks: Verifying Puppet Configs original ↗

16 Feb 2017

How to Build an Exchange original ↗

11 Jan 2017

A brief trip through Spacetime original ↗

9 Jan 2017

2016

A solution to the ppx versioning problem original ↗

8 Nov 2016

Observations of a functional programmer original ↗

27 Oct 2016

What the interns have wrought, 2016 original ↗

13 Sept 2016

Unraveling of the tech hiring market original ↗

31 Aug 2016