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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
Mar 24, 2025 · Artificial Intelligence

Chronon: Open‑Source Feature Platform for Machine Learning – Architecture, Workflow, and Code Examples

Chronon is an open‑source ML feature platform that lets engineers declaratively define, compute, and serve both batch and real‑time features with built‑in observability, data‑quality checks, and a low‑latency retrieval API, ensuring online‑offline consistency while simplifying pipeline management and enabling future automation.

ChrononData pipelinesobservability
0 likes · 13 min read
Chronon: Open‑Source Feature Platform for Machine Learning – Architecture, Workflow, and Code Examples
Airbnb Technology Team
Airbnb Technology Team
Jan 24, 2025 · Artificial Intelligence

Chronon — An Open-Source Framework for Production-Level Feature Engineering in Machine Learning

Chronon is an open‑source framework that centralizes feature definitions to guarantee training‑inference consistency, eliminates complex ETL pipelines, and supports real‑time and batch processing across diverse data sources, cutting feature‑development cycles from months to under a week, as demonstrated by Airbnb’s 40,000‑feature deployment.

ChrononHiveReal-Time Data
0 likes · 10 min read
Chronon — An Open-Source Framework for Production-Level Feature Engineering in Machine Learning
Airbnb Technology Team
Airbnb Technology Team
Dec 12, 2024 · Artificial Intelligence

Airbnb Automation Platform v2: Enabling LLM‑Driven Conversational AI

Airbnb’s Automation Platform v2 replaces the rigid, workflow‑driven architecture of v1 with an LLM‑centric design that orchestrates context gathering, chain‑of‑thought reasoning, tool execution, and guardrails, enabling more natural, scalable, and safe conversational AI while preserving the reliability of traditional workflows.

AI architectureAirbnbConversational AI
0 likes · 11 min read
Airbnb Automation Platform v2: Enabling LLM‑Driven Conversational AI
Airbnb Technology Team
Airbnb Technology Team
Nov 25, 2024 · Mobile Development

Using Trio for Navigation in Android Jetpack Compose

The article shows how Trio stores navigation state in a ViewModel‑backed stack, uses type‑safe routers for screen and activity transitions, supports async save‑and‑exit, result‑returning navigation, and interoperates with legacy fragments, enabling modular, testable navigation in Jetpack Compose.

AndroidJetpack ComposeMavericks
0 likes · 14 min read
Using Trio for Navigation in Android Jetpack Compose
Airbnb Technology Team
Airbnb Technology Team
Nov 12, 2024 · Mobile Development

Trio Architecture: Building a Compose‑Based Android Framework on Mavericks

Airbnb’s Android team introduced Trio, a Compose‑only framework built atop the Mavericks state‑management library that replaces Fragment‑based navigation with type‑safe, modular page routing, ViewModel‑driven state, compile‑time validation, and dedicated developer tools, now powering the majority of the app’s screens.

AndroidArchitectureJetpack Compose
0 likes · 15 min read
Trio Architecture: Building a Compose‑Based Android Framework on Mavericks
Airbnb Technology Team
Airbnb Technology Team
Sep 19, 2024 · Mobile Development

How Airbnb Instruments Android Apps to Capture User‑Centric Performance Metrics

Airbnb’s Android Page Performance Score (PPS) framework instruments fragments to collect user‑centric metrics such as TTFL, TTIL, MTH, ALT and RCLT, using a standardized logging config, LoadableView interface, and visibility algorithms, enabling detailed performance analysis and automated alerts for mobile teams.

AndroidInstrumentationMobile Development
0 likes · 10 min read
How Airbnb Instruments Android Apps to Capture User‑Centric Performance Metrics
Airbnb Technology Team
Airbnb Technology Team
Sep 9, 2024 · Mobile Development

Implementing Page Performance Score on iOS: PPSStateMachine, Metrics, and Instrumentation

Airbnb’s iOS Page Performance Score implementation introduces a PPSStateMachine that ties a UIViewController’s lifecycle to metric collection—tracking first layout, initial load, scroll thread hangs, additional and rich content load times—using nanosecond timestamps, state‑machine protocols, and view‑responder discovery to emit standardized performance logs.

InstrumentationMobile DevelopmentPage Performance Score
0 likes · 9 min read
Implementing Page Performance Score on iOS: PPSStateMachine, Metrics, and Instrumentation
Airbnb Technology Team
Airbnb Technology Team
Jul 16, 2024 · Frontend Development

Airbnb Web Performance Metrics and Their Measurement

Airbnb tracks five real‑user performance metrics—Time To First Contentful Paint, Time To First Meaningful Paint, First Input Delay, Total Blocking Time, and Cumulative Layout Shift—using a mix of browser APIs and custom polyfills, combines them into a weighted Page Performance Score, and leverages that score to guide trade‑off decisions and detect regressions.

Airbnbmetricsweb performance
0 likes · 11 min read
Airbnb Web Performance Metrics and Their Measurement
Airbnb Technology Team
Airbnb Technology Team
Jul 2, 2024 · Frontend Development

Airbnb Page Performance Score (PPS): Multi‑Platform Metrics, Weighting, and Evolution

Airbnb created the Page Performance Score (PPS), a unified 0‑100 metric that aggregates platform‑specific initial‑load and post‑load user‑centric measurements for Web, iOS, and Android, using weighted curves to enable cross‑page, cross‑team comparisons, track organizational weighted averages, and evolve with new metrics while preserving a stable scale.

AirbnbPage Performance Scoremetrics
0 likes · 10 min read
Airbnb Page Performance Score (PPS): Multi‑Platform Metrics, Weighting, and Evolution