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Airbnb Technology Team
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Airbnb Technology Team

Official account of the Airbnb Technology Team, sharing Airbnb's tech innovations and real-world implementations, building a world where home is everywhere through technology.

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Recent Articles

Latest from Airbnb Technology Team

50 recent articles
Airbnb Technology Team
Airbnb Technology Team
Dec 22, 2021 · Mobile Development

Automated Unit Testing Framework for Android ViewModel (Part 4)

Part 4 of Airbnb’s Android testing series presents a dedicated framework that lets developers write concise, single‑function unit tests for ViewModel classes by specifying initial state, parameters, and expected state or dependency calls through a Kotlin DSL, integrating with JUnit, Robolectric, Mockito, and offering scaffolding and IntelliJ plugins for streamlined, systematic ViewModel logic verification.

AndroidKotlinMockito
0 likes · 12 min read
Automated Unit Testing Framework for Android ViewModel (Part 4)
Airbnb Technology Team
Airbnb Technology Team
Nov 25, 2021 · Mobile Development

How Airbnb Automates Android Interaction Testing with JSON Diff

Airbnb’s Android team built an automated interaction testing system that traverses view hierarchies, records click actions and resulting state changes into JSON snapshots, enabling diff-based verification of UI behavior without writing traditional Espresso tests, and integrates with Happo for CI reporting.

AndroidEspressoInteraction Testing
0 likes · 18 min read
How Airbnb Automates Android Interaction Testing with JSON Diff
Airbnb Technology Team
Airbnb Technology Team
Nov 11, 2021 · Artificial Intelligence

Airbnb’s Task‑Oriented Dialogue System for Mutual Cancellation: Architecture, Data Collection, Modeling, and Deployment

Airbnb’s ATIS task‑oriented dialogue system for Mutual Cancellation combines hierarchical domain classification, Q&A‑style intent annotation, large‑scale RoBERTa pre‑training with multilingual fine‑tuning, multi‑turn context handling, GPU‑accelerated inference, and contextual‑bandit reinforcement learning to deliver a scalable, efficient customer‑support solution.

AIGPU deploymentMultilingual
0 likes · 22 min read
Airbnb’s Task‑Oriented Dialogue System for Mutual Cancellation: Architecture, Data Collection, Modeling, and Deployment
Airbnb Technology Team
Airbnb Technology Team
Nov 4, 2021 · Mobile Development

Automated Screenshot Testing for Android Fragments Using MvRx and Happo

This article explains how Airbnb’s Android team extends its MvRx state‑simulation framework with a custom screenshot library and Happo integration to automatically capture, upload, and compare fragment UI snapshots in CI, detecting visual regressions, layout issues, crashes and memory leaks across commits.

AndroidCIHappo
0 likes · 11 min read
Automated Screenshot Testing for Android Fragments Using MvRx and Happo
Airbnb Technology Team
Airbnb Technology Team
Sep 27, 2021 · Big Data

Midas Certification: Airbnb’s End-to-End Data Quality Framework

Airbnb’s Midas certification establishes a company‑wide, multi‑dimensional golden‑standard for data quality—covering accuracy, consistency, timeliness, cost, and completeness—by requiring collaborative design, automated health checks, and four review stages, ensuring certified data is reliable, well‑documented, and ready for reporting, experimentation, and machine‑learning.

AirbnbData EngineeringData Quality
0 likes · 12 min read
Midas Certification: Airbnb’s End-to-End Data Quality Framework
Airbnb Technology Team
Airbnb Technology Team
Sep 22, 2021 · Backend Development

Design and Implementation of Himeji: A Zanzibar‑Based Centralized Authorization System at Airbnb

Airbnb replaced duplicated, latency‑prone authorization checks in its new service‑oriented architecture by moving them into data services and building Himeji, a Zanzibar‑inspired centralized permission store that uses triple‑based policies, configurable unions, sharded caching, and Aurora backing to deliver sub‑10 ms latency for millions of checks per second with 99.999 % availability.

AuthorizationZanzibarbackend
0 likes · 12 min read
Design and Implementation of Himeji: A Zanzibar‑Based Centralized Authorization System at Airbnb
Airbnb Technology Team
Airbnb Technology Team
Aug 16, 2021 · Mobile Development

From Imperative to Declarative UI: Airbnb's Epoxy Framework for iOS

Airbnb’s Epoxy iOS framework replaces fragile, indexPath‑driven imperative UI code with a declarative model‑based system that automatically diffs and animates view updates, eliminating crashes, boosting developer satisfaction from –78 to +58, and enabling a unified, open‑source approach to building Swift interfaces.

Declarative UIDiffing AlgorithmEpoxy
0 likes · 10 min read
From Imperative to Declarative UI: Airbnb's Epoxy Framework for iOS
Airbnb Technology Team
Airbnb Technology Team
Jul 29, 2021 · Big Data

Airbnb’s Data Quality Improvement Plan: Organizational, Architectural, and Governance Practices

Airbnb’s 2019 Data Quality Improvement Plan reorganized its data‑engineering workforce, introduced a dedicated data‑engineer role, adopted a decentralized Minerva‑based architecture with Spark pipelines, instituted rigorous testing, governance, and certification processes, and established SLAs and monitoring to ensure timely, trustworthy, well‑documented data across the enterprise.

AirbnbData EngineeringData Quality
0 likes · 13 min read
Airbnb’s Data Quality Improvement Plan: Organizational, Architectural, and Governance Practices
Airbnb Technology Team
Airbnb Technology Team
Jul 16, 2021 · Frontend Development

How Airbnb’s visx Turns React into a Powerful Visualization Engine

The article explains how Airbnb’s visx library, built on React and D3 primitives, addresses the need for a lightweight, highly expressive, and performant front‑end visualization solution by offering modular packages, TypeScript safety, and seamless integration with existing React codebases.

Data VisualizationReActTypeScript
0 likes · 11 min read
How Airbnb’s visx Turns React into a Powerful Visualization Engine