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Latest Articles
16 MAR

VINE: An Open Source Interactive Data Visualization Tool for Neuroevolution

Uber AI Labs introduces Visual Inspector for Neuroevolution (VINE), an open source interactive data visualization tool to help neuroevolution researchers better understand this family of algorithms.


Queryparser, an Open Source Tool for Parsing and Analyzing SQL

Written in Haskell, Queryparser is Uber Engineering's open source tool for parsing and analyzing SQL queries that makes it easy to identify foreign-key relationships in large data warehouses.

20 FEB

Introducing the Uber AI Residency

Interested in accelerating your career by tackling some of Uber’s most challenging AI problems? Apply for the Uber AI Residency, a research fellowship dedicated to fostering the next generation of AI talent.

31 JAN

NEAL, Uber’s Open Source Language-Agnostic Linting Platform

Not Exactly a Linter (NEAL) takes code reviews one step closer to full automation by allowing engineers to write custom syntax-based rules in any language.

16 JAN

SBNet: Leveraging Activation Block Sparsity for Speeding up Convolutional Neural Networks

Uber ATG Toronto developed Sparse Blocks Network (SBNet), an open source algorithm for TensorFlow, to speed up inference of our 3D vehicle detection systems while lowering computational costs.

22 DEC

Year in Review: 2017 Highlights from Uber Open Source

As we approach the New Year, Uber Open Source revisits some of Uber Engineering's most popular projects from 2017.


Uber AI Labs Open Sources Pyro, a Deep Probabilistic Programming Language

Pyro is an open source probabilistic programming language that unites modern deep learning with Bayesian modeling for a tool-first approach to AI.

17 OCT

Meet Horovod: Uber’s Open Source Distributed Deep Learning Framework for TensorFlow

Uber Engineering introduces Horovod, an open source framework that makes it faster and easier to train deep learning models with TensorFlow.


Introducing AthenaX, Uber Engineering’s Open Source Streaming Analytics Platform

Uber Engineering built AthenaX, our open source streaming analytics platform, to bring large-scale event stream processing to everyone.

16 AUG

Unpacking the Android Bundle with AutoValue Extensions at Uber Engineering

Uber Engineering's new open source tool, AutoValue: Bundle Extension, decreases the likelihood of encountering bugs by enabling Android engineers to quickly unbundle data into value classes.

11 AUG

Building More Reliable Apps with Uber Engineering’s Startup Reason Reporter

In this article, members of Uber’s Mobile Platform team introduce Startup Reason Reporter, our new open source tool for detecting startup reason on iOS.

26 MAY

How Uber Engineering Verifies Data at Runtime with the Annotations You Already Use

In 2016, Uber Engineering built and open sourced RAVE, a data model validation framework for Android that leverages Java annotation processing to protect against crashes caused by invalid data.

16 MAY

Engineering Signature Rendering on iOS with UberSignature

In this article, we outline how Uber Engineering developed UberSignature, a new feature that allows iOS users to draw and store touchscreen signatures on the UberRUSH app.

11 MAY

The Journey To Android Monorepo: The History Of Uber Engineering’s Android Codebase Organization

The monorepo codebase powering Uber Engineering's Android rider app is architected to scale for growth while supporting the IDE, reducing build times, and stabilizing the master during integrations.


Detecting Abuse at Scale: Locality Sensitive Hashing at Uber Engineering

In this article, we discuss how Uber Engineering uses Locality Sensitive Hashing on Apache Spark to reliably detect fraudulent trips at scale.


Presenting the Engineering Behind Uber at Our Technology Day

A daylong event at Uber’s Palo Alto office, sponsored by our LadyEng group, showcased the technical work across Uber Engineering as well as the people who are leading and building these projects. Here are some of the resulting presentations.


Open Sourcing 4.0: Uber Engineering’s Framework for Advanced Data Visualization

Uber Engineering debuts 4.0, the latest version of our open source data visualization framework featuring enhanced geospatial exploration, a re-architected codebase, and more comprehensive documentation.

12 MAR

Hoodie: Uber Engineering’s Incremental Processing Framework on Hadoop

Uber Engineering's data processing platform team recently built and open sourced Hoodie, an incremental processing framework that supports our business critical data pipelines. In this article, we see how Hoodie powers a rich data ecosystem where external sources can be ingested into Hadoop in near real-time.


Faster Together: Uber Engineering’s iOS Monorepo

The Uber Engineering mobile team migrates to a monorepo that uses Buck to test and deploy iOS and Android code faster and more efficiently than ever before.


Evolving Distributed Tracing at Uber Engineering

This article is about developing Uber Engineering's open source distributed tracing system, Jaeger.

19 JAN

Introducing Ohana, Uber Engineering’s iOS Contacts Library

Meet Uber Engineering's Ohana. Meaning family in Hawaiian, Ohana is an open sourced, iOS framework for retrieving and formatting contact information.


Introducing Chaperone: How Uber Engineering Audits Kafka End-to-End

Uber Engineering explains why and how we built Chaperone, our in-house auditing system for monitoring Kafka pipeline health.


Cherami: Uber Engineering’s Durable and Scalable Task Queue in Go

How Uber engineered Cherami, the resilient, scalable, distributed task queue system written in the Go programming language.

10 NOV

Visualize Data Sets on the Web with Uber Engineering’s Framework

In this article, we discuss, an open sourced, WebGL-powered framework specifically designed for exploring and visualizing data sets at scale.

27 SEP

Pyflame: Uber Engineering’s Ptracing Profiler for Python

Seemingly small inefficiencies are greatly magnified as Uber's business scales. In this article we’ll explore design considerations and unique implementation characteristics of Pyflame, Uber Engineering's high-performance Python profiler implemented in C++.

11 AUG

100 Days Into Uber Engineering’s Public Bug Bounty Program

In March 2016, we launched our first public bug bounty program. Here’s an overview, by the numbers, of our first 100 days.


uReplicator: Uber Engineering’s Robust Kafka Replicator

Take a look into uReplicator, Uber’s open source solution for replicating Apache Kafka data in a robust and reliable manner.

26 JUL

Why Uber Engineering Switched from Postgres to MySQL

Uber Engineering explains the technical reasoning behind its switch in database technologies, from Postgres to MySQL.

21 JUL

The Uber Engineering Tech Stack, Part II: The Edge and Beyond

The end of a two-part series on the tech stack that Uber Engineering uses to make transportation as reliable as running water, everywhere, for everyone, as of spring 2016.