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engineering Articles

54 articles

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pinterest(24)
infrastructure(18)
technology(13)
machine-learning(10)
ai(8)
performance(6)
observability(5)
open-source
(5)
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Engineering(4)
data(4)
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Airbnb logoAirbnb
11 min read
Data Engineering•2026-05-19

Scaling Airbnb’s identity graph with a unified knowledge graph infrastructure

Airbnb migrated its identity graph from third-party PaaS to an internally-managed knowledge graph infrastructure built on JanusGraph and DynamoDB.

technology
graph-database
infrastructure
knowledge-graph
engineering
Airbnb logoAirbnb
01 min read
Data Engineering•2026-05-13

Viaduct 1.0 and the future of Airbnb’s data mesh

Viaduct 1.0 represents Airbnb's evolution from internal tool to production-ready, community-driven data mesh platform.

api
engineering
data
open-source
graphql
Pinterest logoPinterest
51 min read
AI•2026-05-12

An Engineer’s Guide to Better AI Skills: Implementing a Testing Process to Optimize Agent…

This article presents testing methods to measure and improve AI agent skill invocation reliability using Pinterest's internal agents and Claude Code.

engineering-culture
engineering
ai
agentic-coding
pinterest
Pinterest logoPinterest
11 min read
Machine Learning•2026-05-08

Enhancing Ad Relevance: Integrating Real-Time Context into Sequential Recommender Models

This paper presents a Contextual Sequential Two-Tower Model for Pinterest ads that integrates real-time context into sequential recommender systems.

engineering
pinterest
ads-retrieval
transformers
monetization
Airbnb logoAirbnb
11 min read
DevOps•2026-05-05

Monitoring reliably at scale

This post explains how Airbnb eliminated circular dependencies in its observability stack to ensure reliable monitoring at scale.

engineering
infrastructure
technology
observability
site-reliability-engineer
Pinterest logoPinterest
31 min read
Machine Learning•2026-05-01

Optimizing ML Workload Network Efficiency (Part I): Feature Trimmer

Pinterest optimized ML serving network efficiency by implementing Feature Trimmer to reduce bandwidth bottleneck.

engineering
pinterest
machine-learning
infrastructure
efficiency
Airbnb logoAirbnb
51 min read
Architecture•2026-04-28

Skipper: Building Airbnb’s embedded workflow engine

Skipper is Airbnb's embedded workflow engine designed to enable durable execution of multi-step business processes without requiring external orchestration infrastructure.

workflow
software-architecture
infrastructure
technology
engineering
Pinterest logoPinterest
21 min read
Machine Learning•2026-04-27

From Clicks to Conversions: Architecting Shopping Conversion Candidate Generation at Pinterest

Pinterest built an ML model optimizing shopping conversions by addressing sparse offsite conversion events.

recommendation-system
pinterest
monetization
machine-learning
engineering
Airbnb logoAirbnb
31 min read
DevOps•2026-04-21

Building a fault-tolerant metrics storage system at Airbnb

Airbnb built a metrics storage system ingesting 50 million samples per second and storing 1.3 billion active time series.

site-reliability-engineer
infrastructure
technology
engineering
software-architecture
Pinterest logoPinterest
41 min read
Backend•2026-04-20

Smarter URL Normalization at Scale: How MIQPS Powers Content Deduplication at Pinterest

Pinterest's MIQPS algorithm automatically learns which URL parameters affect content identity, enabling efficient deduplication across millions of merchant URLs at scale.

pinner-experience
engineering
infrastructure
eng-culture
pinterest
Pinterest logoPinterest
21 min read
DevOps•2026-04-15

Finding zombies in our systems: A real-world story of CPU bottlenecks

Pinterest engineers debugged why Ray-based ML training jobs were crashing with intermittent network connectivity issues on Kubernetes clusters backed by AWS EC2.

performance
kubernetes
pinterest
machine-learning
engineering
Airbnb logoAirbnb
31 min read
Security•2026-04-14

Privacy-first connections: Empowering social experiences at Airbnb

Airbnb introduces privacy-first social features for Airbnb Experiences, separating internal user data from public profiles to protect guest privacy while enabling social connections.

user-experience
data-privacy
data
privacy
engineering
Pinterest logoPinterest
61 min read
Machine Learning•2026-04-13

Scaling Recommendation Systems with Request-Level Deduplication

Pinterest shares their technique of request-level deduplication to manage infrastructure costs when scaling recommendation systems with 100x increased model parameters.

pinterest
machine-learning
infrastructure
engineering
recommendation-system
Pinterest logoPinterest
11 min read
Mobile•2026-04-08

Performance for Everyone

Pinterest's approach to automatically measuring user-perceived latency (Visually Complete) on Android surfaces by embedding measurement logic into base UI classes.

engineering
performance-metrics
pinterest
user-experience
performance
Airbnb logoAirbnb
101 min read
DevOps•2026-04-07

Building a high-volume metrics pipeline with OpenTelemetry and vmagent

This post details a production migration of a large-scale metrics pipeline from StatsD to OpenTelemetry (OTLP) with Prometheus-based storage and vmagent for streaming aggregation.

engineering
technology
infrastructure
observability
site-reliability-engineer
Pinterest logoPinterest
01 min read
Architecture•2026-04-07

Evolution of Multi-Objective Optimization at Pinterest Home feed

This article discusses Pinterest's evolution of the multi-objective optimization layer in their home feed recommendation system.

results-diversification
engineering
slate-optimization
recommendation-system
pinterest
Airbnb logoAirbnb
41 min read
Culture•2026-04-02

My Journey to Airbnb — Jonathan Woodard

This article tells the career story of Jonathan Woodard, a former professional NFL defensive end who transitioned into software engineering and joined Airbnb's Secure Development Engineering team.

people
engineering
technology
cloud-security
software-engineering
Airbnb logoAirbnb
111 min read
Machine Learning•2026-03-24

What COVID did to our forecasting models (and what we built to handle the next shock)

Airbnb explains how COVID broke their booking-to-trip forecasting models and the architectural changes they built to handle structural data shifts.

technology
data-modeling
machine-learning
data-science
engineering
Pinterest logoPinterest
141 min read
AI•2026-03-19

Building an MCP Ecosystem at Pinterest

Pinterest describes how they built a production MCP (Model Context Protocol) ecosystem to enable AI agents to safely automate engineering tasks.

engineering-culture
pinterest
infrastructure
ai
engineering
Airbnb logoAirbnb
111 min read
DevOps•2026-03-17

From vendors to vanguard: Airbnb’s hard-won lessons in observability ownership

Airbnb shares hard-won lessons from migrating its observability platform from third-party vendors to a custom in-house solution built on Prometheus across 1,000 services.

engineering
technology
observability
infrastructure