[
Airbnb.io
](/)
[Mobile](/mobile/)
[Open Source](/projects/)
[Events](/events/)
[Blog](https://medium.com/airbnb-engineering)
[Github](https://github.com/airbnb)
[Careers](https://www.airbnb.com/careers/departments/engineering)
Airbnb Engineering & Data Science
=================================
Creative engineers and data scientists building a world where you can belong anywhere
Blog Posts
==========
[
On Spark, Hive, and Small Files: An In-Depth Look at Spark Partitioning Strategies
](https://medium.com/airbnb-engineering/on-spark-hive-and-small-files-an-in-depth-look-at-spark-partitioning-strategies-a9a364f908)
[
Enzyme’s Next Phase
](https://medium.com/airbnb-engineering/phase-ii-enzyme-d9efa717e297)
[
Building an Effective Test Pipeline in a Service Oriented World
](https://medium.com/airbnb-engineering/building-an-effective-test-pipeline-in-a-service-oriented-world-6968c513c6bd)
[
Better Android Testing at Airbnb
](https://medium.com/airbnb-engineering/better-android-testing-at-airbnb-eacec3a8a72f)
[
Better Android Testing at Airbnb
](https://medium.com/airbnb-engineering/better-android-testing-at-airbnb-a11f6832773f)
[
Better Android Testing at Airbnb
](https://medium.com/airbnb-engineering/better-android-testing-at-airbnb-661a554a8c8b)
[
Better Android Testing at Airbnb
](https://medium.com/airbnb-engineering/better-android-testing-at-airbnb-part-4-testing-viewmodels-550d929126c8)
[
Dynein: Building a Distributed Delayed Job Queueing System
](https://medium.com/airbnb-engineering/dynein-building-a-distributed-delayed-job-queueing-system-93ab10f05f99)
[
Better Android Testing at Airbnb
](https://medium.com/airbnb-engineering/better-android-testing-at-airbnb-1d1e91e489b4)
Open Source Projects
====================
[
Airflow Use Apache Airflow (incubating) to author workflows as directed acyclic graphs (DAGs) of tasks
21,759
](/projects/airflow/)
[
Airpal Web UI for PrestoDB
2,759
](/projects/airpal/)
[
BinaryAlert Serverless real-time and retroactive malware detection
1,149
](/projects/binaryalert/)
[
AirMapView A view abstraction to provide a map user interface with various underlying map providers
1,806
](/projects/airmapview/)
[
DeepLinkDispatch Easy declaration and routing of your deep links
4,003
](/projects/deeplinkdispatch/)
[
Epoxy for Android An Android library for building complex screens in a RecyclerView
7,339
](/projects/epoxy/)
[
Enzyme JavaScript Testing utilities for React
19,571
](/projects/enzyme/)
[
Aerosolve A machine learning package built for humans
4,707
](/projects/aerosolve/)
[
Epoxy for iOS Epoxy is a suite of declarative UI APIs for building iOS UIKit apps in Swift
574
](/projects/epoxy-ios/)
[
HorizonCalendar A declarative and performant iOS calendar UI component that supports use cases ranging from simple date pickers all the way up to fully-featured calendar apps.
1,895
](/projects/horizon-calendar/)
[
Hammerspace Hash-like interface to persistent, concurrent, off-heap storage
331
](/projects/hammerspace/)
[
Interferon Signaling you about infrastructure or application issues
227
](/projects/interferon/)
[
Hypernova A service for server-side rendering your JavaScript views
5,716
](/projects/hypernova/)
[
Lottie (Docs) Lottie documentation for http://airbnb.io/lottie
2,876
](/projects/lottie-docs/)
[
JavaScript Style Guide A mostly reasonable approach to JavaScript
109,979
](/projects/javascript/)
[
The Knowledge Repo A next-generation curated knowledge sharing platform for data scientists and other technical professions
4,790
](/projects/knowledge-repo/)
[
Lottie (Web) Render After Effects animations natively on Web
24,399
](/projects/lottie-web/)
[
MagazineLayout An iOS collection view layout capable of laying out views in vertically scrolling grids and lists.
2,933
](/projects/magazine-layout/)
[
Nerve A service registration daemon that performs health checks; companion to airbnb/synapse
925
](/projects/nerve/)
[
mocha-wrap Fluent pluggable interface for easily wrapping \`describe\` and \`it\` blocks in Mocha tests
51
](/projects/mocha-wrap/)
[
Lottie (Android) Render After Effects animations natively on Android
31,260
](/projects/lottie-android/)
[
Lottie (iOS, macOS) An iOS library to natively render After Effects vector animations http://airbnb.io/lottie/
21,652
](/projects/lottie-ios/)
[
react-dates An accessible, easily internationalizable, mobile-friendly datepicker library for the web
11,472
](/projects/react-dates/)
[
Omniduct An interface for extracting data from various data sources
90
](/projects/omniduct/)
[
ReAir A collection of easy-to-use tools for replicating tables and partitions between Hive data warehouses
261
](/projects/reair/)
[
react-with-styles Use CSS-in-JavaScript with themes for React without being tightly coupled to one implementation
1,659
](/projects/react-with-styles/)
[
Rheostat Rheostat is a www, mobile, and accessible slider component built with React
1,635
](/projects/rheostat/)
[
Polyglot Give your JavaScript the ability to speak many languages
3,435
](/projects/polyglot/)
[
RxGroups Easily group RxJava Observables together and tie them to your Android Activity lifecycle
696
](/projects/rx-groups/)
[
Stemcell Airbnb's EC2 instance creation and bootstrapping tool
177
](/projects/stemcell/)
[
Swift Style Guide Airbnb's Swift Style Guide
1,255
](/projects/swift/)
[
Ruby Style Guide Airbnb's Ruby Style Guide
3,259
](/projects/ruby/)
[
SpinalTap Capture data changes @Airbnb
345
](/projects/spinaltap/)
[
StreamAlert A serverless framework for real-time data analysis and alerting
2,539
](/projects/streamalert/)
[
Superset Apache Superset is a modern, enterprise-ready business intelligence web application
39,030
](/projects/superset/)
[
visx A collection of reusable low-level visualization components. visx combines the power of d3 to generate your visualization with the benefits of React for updating the DOM.
13,411
](/projects/visx/)
[
Synapse A transparent service discovery framework for connecting an SOA
2,034
](/projects/synapse/)