Halite
Halite is our artificial intelligence programming challenge, designed for our annual summer programming competition. The most recent competition was run with the help of Cornell Tech.
Two Sigma Open Source
We are scientists, discovering
value in the world’s data.
We use science and technology to tackle the world’s most complex problems. This site features some of our best technologies and the projects we’re committed to.
Work with our tools. Star them. Fork them.
One project we're
passionate about
At Two Sigma we’re committed to improving the Jupyter ecosystem. We’ve had 40 patches accepted to four repositories, including Jupyter Lab, IPython, and IPyWidgets. We’ve also open sourced our own tool BeakerX that extends Jupyter with support for six languages, many widgets, and one-click publication. View Project
A few of our projects
you should check out
Waiter
21
7
Waiter is an on-demand, web service platform that launches, manages, and automatically scales services running on Mesos.
21
7
Satellite
140
19
We built Satellite to monitor, alert on, and self-heal Mesos clusters.
140
19
Cook
247
47
Cook is our dynamic fair job scheduler on Mesos for batch workloads and Spark.
247
47
Flint
329
68
Flint is our project that provides time-series analysis in Spark.
329
68
git-meta
50
19
Our project that lets you effectively manage many repositories with git submodules.
50
19
BeakerX
1612
237
BeakerX is a collection of kernels and extensions to the Jupyter interactive computing environment. It provides JVM support, interactive plots, tables, forms, publishing, and more.
1612
237
Contributions we're
making to the community
pandas
The creator of pandas and another core team member work in-house.
Apache Mesos
Our tech stack is built on Apache Mesos, and we are heavily involved in this community. Catch us at MesosCon each year.
Apache Spark
We depend on Apache Spark to scale our data-heavy analyses and we build tools on top of it (see our Flint project above). The Spark Summits each year are a calendar highlight.
Apache Arrow
We have been helping drive the Arrow format design and the Python and C++ implementations.
Apache Parquet
We have been contributing the C++ implementation parquet-cpp.
Jupyter
TS has made major contributions to the notebook space with Beaker. Now, we're collaborating with the Jupyter team to bring some of Beaker's innovations to Jupyter.
NumFOCUS
We are a Corporate Partner of NumFOCUS, a non-profit dedicated to supporting the open source scientific computing community.
Bazel
Our engineers have contributed experimental support for distributed caching and execution. This is an ongoing area of development in partnership with the Google team.
ScratchJr
ScratchJr enables children ages 5-7 to program their own interactive stories and games. Our team developed ScratchJr for Android devices.
What we do and
how we think
Two Sigma is not your typical investments manager. We put our 3100+ person years of R&D towards making the smartest investment decisions for our clients. Over 75% of our employees work in technical roles and two thirds code every day—all working together in teams to build technical solutions that solve complex problems.