Jane Street Tech Talks: Verifying Puppet Configs
Our first Jane Street Tech Talk went really well! Thanks to everyone who came and made it a fun event.
How to Build an Exchange
UPDATE: We are full up. Tons of people signed up for the talk, and we’re now at the limit of what we feel like we...
A brief trip through Spacetime
Spacetime is a new memory profiling facility for OCaml to help find space leaks and unwanted allocations. Whilst still a little rough around the edges,...
A solution to the ppx versioning problem
Ppx is a preprocessing system for OCaml where one maps over the OCaml abstract syntax tree (AST) to interpret some special syntax fragments to generate...
Observations of a functional programmer
I was recently invited to do the keynote at the Commercial Users of Functional Programming workshop, a 15-year-old gathering which is attached to ICFP, the...
What the interns have wrought, 2016
Now that the interns have mostly gone back to school, it’s a good time to look back at what they did while they were here....
Unraveling of the tech hiring market
Recruiting talented people has always been challenging.
Do you love dev tools? Come work at Jane Street.
In the last few years, we’ve spent more and more effort working on developer tools, to the point where we now have a tools-and-compilers group...
Let syntax, and why you should use it
Earlier this year, we created a ppx_let, a PPX rewriter that introduces a syntax for working with monadic and applicative libraries like Command, Async, Result...
ppx_core: context-free rewriters for better semantics and faster compilation
At Jane Street, we have always been heavy users of pre-processors, first with camlp4 and now ppx. Pre-processing makes the infrastructure a bit more complex,...
Seven Implementations of Incremental
We finally got a decent recording of one of my favorite talks. This one is about our Incremental library (which I wrote about here), and...
OCaml 4.03: Everything else
In my previous post I wrote about Flambda, which is the single biggest feature coming to OCaml in this release. In this post, I’ll review...
