---
title: 2018-11-07 Jane Street Tech Talks Jane and the Compiler
description: In this talk, Yaron Minsky will discuss that history, touching on how upstream changes impacted Jane Street along the way, how they came to start making changes ourselves, and what ongoing projects they’re excited about.
image: https://www.finos.org/hubfs/Screen%20Shot%202018-10-23%20at%203.36.12%20PM.png
---

[![FINOS](https://www.finos.org/hs-fs/hubfs/sofin%20assets/SOFIN%20LOGOS/finos-logo.png?width=543&height=126&name=finos-logo.png "FINOS")](https://finos.org)

- [Projects](https://www.finos.org/projects) 
    - [Artificial Intelligence (AI)](https://ai.finos.org/)
    - [Common Domain Model (CDM)](https://www.finos.org/common-domain-model)
    - [FDC3](https://www.finos.org/fdc3)
    - [Fluxnova](https://fluxnova.finos.org)
    - [FINOS Common Cloud Controls](https://www.finos.org/common-cloud-controls-project)
    - [High Performance Computing (HPC)](https://hpc.finos.org)
    - [OSERA](https://osera.finos.org/)
    - [Open Source Readiness Initiative](https://www.finos.org/open-source-readiness)
    - [OS-Climate](https://www.finos.org/os-climate)
    - [Try our Projects](https://www.finos.org/project-sandbox)
    - [All Projects Landscape](https://landscape.finos.org/)
- [Community](https://www.finos.org/engage-with-our-community) 
    - [FINOS Community Calendar](https://www.finos.org/calendar)
    - [Community Quickstart](https://www.finos.org/get-involved)
    - [FINOS Community Site](https://community.finos.org/)
    - [Contribute](https://community.finos.org/docs/governance/Software-Projects/contribution)
    - [Unable to Contribute?](https://www.finos.org/open-source-readiness)
    - [Join our Slack channel](https://finos-lf.slack.com/messages/finos-community/)
    - [Recognize a contributor](https://github.com/finos/community/issues/new?assignees=mcleo-d&labels=community-recognition&template=Community-Recognition.md&title=FINOS+Community+Recognition)
    - [Ambassador Program](https://www.finos.org/ambassador-program)
- [Membership](https://www.finos.org/membership-benefits) 
    - [Members](https://www.finos.org/members)
    - [Inquire](https://www.finos.org/membership-benefits#become-a-member)
    - [Join](https://joinnow.platform.linuxfoundation.org/?project=finos)
    - [Member ROI Summary & Calculator](https://www.finos.org/roi-report-calculator)
    - [Dependency Consumption Analysis](https://www.finos.org/dependency-consumption-analysis)
- Resources 
    - [2025 Mission & Vision](https://www.finos.org/2024-in-review-2025-vision)
    - [Research & Case Studies](https://www.finos.org/research-case-studies)
    - [Training](https://training.linuxfoundation.org/finos/)
    - [Open Source Maturity Model](https://osr.finos.org/docs/bok/OSMM/Introduction)
    - [Contributions Live Dashboard](https://metrics.finos.org)
    - [Our Github Organization](https://github.com/finos/)
    - [Our Developer Toolchain](https://odp.finos.org/)
    - [FINOS Store](https://store-finos.myshopify.com/)
- News & Events 
    - [This Week At FINOS](https://www.finos.org/this-week-at-finos)
    - [Community Blog](https://www.finos.org/blog)
    - [Newsletter](https://www.finos.org/newsletter)
    - [Podcast: Open Source in Finance](https://www.finos.org/open-source-in-finance-podcast)
    - [Press Releases](https://www.finos.org/press)
    - [FINOS Events](https://www.finos.org/hosted-events)
    - [Community Events](https://www.finos.org/featured-events)
    - [Community Spotlight](https://www.finos.org/community-spotlight)
    - [Stay Informed](https://www.finos.org/sign-up)
- [About](https://www.finos.org/about-us) 
    - [Stay Informed](https://www.finos.org/sign-up)
    - [FAQs](https://www.finos.org/faq)
    - [Contact Us](https://www.finos.org/contact-us)
    - [Governing Board](https://www.finos.org/governing-board)
    - [Technical Oversight Committee](https://www.finos.org/technical-oversight-committee)
    - [Team](https://www.finos.org/team)
    - [Governance](https://www.finos.org/governance)
    - [Code of Conduct](https://www.finos.org/code-of-conduct)
- [OSFF + Videos](https://events.linuxfoundation.org/open-source-finance-forum) 
    - [OSFF 2026](https://events.linuxfoundation.org/open-source-finance-forum/)
    - [OSFF Toronto 2026 Videos](https://www.finos.org/osff-toronto-2026-videos)
    - [OSFF New York 2025 Videos](https://www.finos.org/osff-nyc-2025-videos)
    - [OSFF London 2026 Videos](https://www.finos.org/osff-london-2026-videos)
    - [apidays Paris 2025 Videos](https://www.finos.org/apidays)

- [Projects](https://www.finos.org/projects) 
    - [Artificial Intelligence (AI)](https://ai.finos.org/)
    - [Common Domain Model (CDM)](https://www.finos.org/common-domain-model)
    - [FDC3](https://www.finos.org/fdc3)
    - [Fluxnova](https://fluxnova.finos.org)
    - [FINOS Common Cloud Controls](https://www.finos.org/common-cloud-controls-project)
    - [High Performance Computing (HPC)](https://hpc.finos.org)
    - [OSERA](https://osera.finos.org/)
    - [Open Source Readiness Initiative](https://www.finos.org/open-source-readiness)
    - [OS-Climate](https://www.finos.org/os-climate)
    - [Try our Projects](https://www.finos.org/project-sandbox)
    - [All Projects Landscape](https://landscape.finos.org/)
- [Community](https://www.finos.org/engage-with-our-community) 
    - [FINOS Community Calendar](https://www.finos.org/calendar)
    - [Community Quickstart](https://www.finos.org/get-involved)
    - [FINOS Community Site](https://community.finos.org/)
    - [Contribute](https://community.finos.org/docs/governance/Software-Projects/contribution)
    - [Unable to Contribute?](https://www.finos.org/open-source-readiness)
    - [Join our Slack channel](https://finos-lf.slack.com/messages/finos-community/)
    - [Recognize a contributor](https://github.com/finos/community/issues/new?assignees=mcleo-d&labels=community-recognition&template=Community-Recognition.md&title=FINOS+Community+Recognition)
    - [Ambassador Program](https://www.finos.org/ambassador-program)
- [Membership](https://www.finos.org/membership-benefits) 
    - [Members](https://www.finos.org/members)
    - [Inquire](https://www.finos.org/membership-benefits#become-a-member)
    - [Join](https://joinnow.platform.linuxfoundation.org/?project=finos)
    - [Member ROI Summary & Calculator](https://www.finos.org/roi-report-calculator)
    - [Dependency Consumption Analysis](https://www.finos.org/dependency-consumption-analysis)
- Resources 
    - [2025 Mission & Vision](https://www.finos.org/2024-in-review-2025-vision)
    - [Research & Case Studies](https://www.finos.org/research-case-studies)
    - [Training](https://training.linuxfoundation.org/finos/)
    - [Open Source Maturity Model](https://osr.finos.org/docs/bok/OSMM/Introduction)
    - [Contributions Live Dashboard](https://metrics.finos.org)
    - [Our Github Organization](https://github.com/finos/)
    - [Our Developer Toolchain](https://odp.finos.org/)
    - [FINOS Store](https://store-finos.myshopify.com/)
- News & Events 
    - [This Week At FINOS](https://www.finos.org/this-week-at-finos)
    - [Community Blog](https://www.finos.org/blog)
    - [Newsletter](https://www.finos.org/newsletter)
    - [Podcast: Open Source in Finance](https://www.finos.org/open-source-in-finance-podcast)
    - [Press Releases](https://www.finos.org/press)
    - [FINOS Events](https://www.finos.org/hosted-events)
    - [Community Events](https://www.finos.org/featured-events)
    - [Community Spotlight](https://www.finos.org/community-spotlight)
    - [Stay Informed](https://www.finos.org/sign-up)
- [About](https://www.finos.org/about-us) 
    - [Stay Informed](https://www.finos.org/sign-up)
    - [FAQs](https://www.finos.org/faq)
    - [Contact Us](https://www.finos.org/contact-us)
    - [Governing Board](https://www.finos.org/governing-board)
    - [Technical Oversight Committee](https://www.finos.org/technical-oversight-committee)
    - [Team](https://www.finos.org/team)
    - [Governance](https://www.finos.org/governance)
    - [Code of Conduct](https://www.finos.org/code-of-conduct)
- [OSFF + Videos](https://events.linuxfoundation.org/open-source-finance-forum) 
    - [OSFF 2026](https://events.linuxfoundation.org/open-source-finance-forum/)
    - [OSFF Toronto 2026 Videos](https://www.finos.org/osff-toronto-2026-videos)
    - [OSFF New York 2025 Videos](https://www.finos.org/osff-nyc-2025-videos)
    - [OSFF London 2026 Videos](https://www.finos.org/osff-london-2026-videos)
    - [apidays Paris 2025 Videos](https://www.finos.org/apidays)

![Featured Events](https://www.finos.org/hubfs/FINOS/website/banner-backgrounds/Events%20(Gold%2080).png)

# Featured Events

# Jane Street Tech Talks - JANE AND THE COMPILER

 November 7, 2018, 6.15pm

 NYC

[Registration link](https://www.janestreet.com/tech-talks/jane-and-compiler/)

Most of the time, our relationship to programming languages is somewhat remote; we depend on the arcane details of the languages we use, but we don’t usually have much of a say in how those languages evolve.

At Jane Street, we started out in that mode, as a mere user of the language. But over the last 15 years, we’ve moved to a more active stance, where today, we have a team of compiler devs who actively contribute to OCaml, and where we’re more deeply involved in figuring out the future direction of the language.

In this talk, I’ll discuss that history, touching on how upstream changes impacted us along the way, how we came to start making changes ourselves, and what ongoing projects we’re excited about.

Yaron Minsky joined Jane Street back in 2002, and claims the dubious honor of having convinced the firm to start using OCaml. He also spends way too much time teaching his kids how to program.

### Lower Manhattan

See registration page for details - [https://www.janestreet.com/tech-talks/jane-and-compiler/](https://www.finos.org/featured-events/JANE%20AND%20THE%20COMPILER)

### Share this:

- [Tweet](https://twitter.com/share)

[![FINOS Logo](https://www.finos.org/hs-fs/hubfs/sofin%20assets/SOFIN%20LOGOS/FINOS_Icon_Wordmark_White.png?width=689&height=971&name=FINOS_Icon_Wordmark_White.png "FINOS Logo")](https://www.finos.org/)

[![Twitter logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/twitter-blue-social-panel.png)](https://twitter.com/finosfoundation) [![GitHub logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/github-black-social-panel.png)](https://finos.github.io) [![LinkedIn logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/linkedin-blue-social-panel.png)](https://www.linkedin.com/company/finosfoundation) [![SlideShare logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/Homepage%20Social%20Panel/slideshare-logo.png)](https://www.slideshare.net/finosfoundation) [![YouTube logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/Homepage%20Social%20Panel/youtube_logo-1.png)](https://www.youtube.com/channel/UCfJAdRALzJ7J7snubrb_Y-Q)

[Contact Us](https://www.finos.org/contact-us)  
[info@finos.org](mailto:info@finos.org)  
+1 (650) 665-9773

[Privacy | ](https://www.finos.org/privacy-policy)[Terms of Service |](https://www.finos.org/terms-of-service)[Community Code of Conduct |](https://www.finos.org/code-of-conduct)[Email Preferences](https://www.finos.org/hs/manage-preferences/unsubscribe-simple)

![](https://px.ads.linkedin.com/collect/?pid=537250&fmt=gif)