How can I have a Win32 drop-down combo box with a read-only edit control?
You can ask for its handle and mark it read-only. The post How can I have a Win32 drop-down combo box with a read-only edit control? appeared first on The Old New Thing.
Engineering Feed
A curated reading feed of engineering blogs I follow — from teams building real systems at scale.
209 articles
Message-only windows are for messaging, not as a convenient victim for hosting UI
If you want to host UI, use a real window (possibly hidden). The post Message-only windows are for messaging, not as a convenient victim for hosting UI appeared first on The Old New Thing.
Building the future: highlights from Dropbox’s 2025 summer intern class
The Dropbox Intern Program is thoughtfully designed to cultivate growth, spark innovation, and build lasting connections.
AWS Secure Amazon Elastic VMware Service (Amazon EVS) with AWS Network Firewall
In this post, we demonstrate how to utilize AWS Network Firewall to secure an Amazon EVS environment, using a centralized inspection architecture across an EVS cluster, VPCs, on-premises data centers and the internet. We walk through the implementation steps to deploy this architecture using AWS Network Firewall and AWS Transit Gateway.
At what point in the Windows development cycle is it too late to change the text of a translatable string?
The translation team sets the deadline. The post At what point in the Windows development cycle is it too late to change the text of a translatable string? appeared first on The Old New Thing.
The apocryphal origins of the Hot Dog Stand color scheme
Challenge accepted. The post The apocryphal origins of the Hot Dog Stand color scheme appeared first on The Old New Thing.
Why does XAML break down when I have an element that is half a billion pixels tall?
You've far exceeded the design goals and have even exceeded the expressive ability of a float. The post Why does XAML break down when I have an element that is half a billion pixels tall? appeared first on The Old New Thing.
Background Coding Agents: Context Engineering (Part 2)
In Part 2, we explore context engineering for background coding agents and what makes a good migration prompt. The post Background Coding Agents: Context Engineering (Part 2) appeared first on Spotify Engineering.
Evolution and Scale of Uber’s Delivery Search Platform
How does Uber Eats power search across billions of stores, dishes, and grocery items? We built a next-gen semantic search platform that understands meaning, not just keywords—handling typos, synonyms, and multiple languages.
Zoomer: Powering AI Performance at Meta’s Scale Through Intelligent Debugging and Optimization
We’re introducing Zoomer, Meta’s comprehensive, automated debugging and optimization platform for AI. Zoomer works across all of our training and inference workloads at Meta and provides deep performance insights that enable energy savings, workflow acceleration, and efficiency gains in our AI infrastructure. Zoomer has delivered training time reductions, and significant QPS improvements, making it the [...] Read More... The post Zoomer: Powering AI Performance at Meta’s Scale Through Intelligent Debugging and Optimization appeared first on Engineering at Meta.
Reducing EV range anxiety: How a simple AI model predicts port availability
Algorithms & Theory
Maybe somebody can explain to me how weak references solve the ODR problem
I don't see it. The post Maybe somebody can explain to me how weak references solve the ODR problem appeared first on The Old New Thing.
Key Transparency Comes to Messenger
We’re excited to share another advancement in the security of your conversations on Messenger: the launch of key transparency verification for end-to-end encrypted chats. This new feature enables an additional level of assurance that only you — and the people you’re communicating with — can see or listen to what is sent, and that no [...] Read More... The post Key Transparency Comes to Messenger appeared first on Engineering at Meta.
In the commit-on-demand pattern, what happens if an access violation straddles multiple pages?
The access violation exceptions will continue until commit improves. The post In the commit-on-demand pattern, what happens if an access violation straddles multiple pages? appeared first on The Old New Thing.
Ceilometer: Uber’s Adaptive Benchmarking Framework
Dig into Ceilometer, Uber’s adaptive benchmarking framework for ensuring system performance and reliability at scale. Learn how it automates performance testing while providing production-like insights and continuous validation.
AWS Building an AI gateway to Amazon Bedrock with Amazon API Gateway
In this post, we'll explore a reference architecture that helps enterprises govern their Amazon Bedrock implementations using Amazon API Gateway. This pattern enables key capabilities like authorization controls, usage quotas, and real-time response streaming. We'll examine the architecture, provide deployment steps, and discuss potential enhancements to help you implement AI governance at scale.
AWS Architecting for AI excellence: AWS launches three Well-Architected Lenses at re:Invent 2025
At re:Invent 2025, we introduce one new lens and two significant updates to the AWS Well-Architected Lenses specifically focused on AI workloads: the Responsible AI Lens, the Machine Learning (ML) Lens, and the Generative AI Lens. Together, these lenses provide comprehensive guidance for organizations at different stages of their AI journey, whether you're just starting to experiment with machine learning or already deploying complex AI applications at scale.
AWS Announcing the updated AWS Well-Architected Generative AI Lens
We are delighted to announce an update to the AWS Well-Architected Generative AI Lens. This update features several new sections of the Well-Architected Generative AI Lens, including new best practices, advanced scenario guidance, and improved preambles on responsible AI, data architecture, and agentic workflows.
AWS Announcing the updated AWS Well-Architected Machine Learning Lens
We are excited to announce the updated AWS Well-Architected Machine Learning Lens, now enhanced with the latest capabilities and best practices for building machine learning (ML) workloads on AWS.
Is WriteÂProcessÂMemory faster than shared memory for transferring data between two processes?
Shared memory is the copy-free solution. The post Is <CODE>WriteÂProcessÂMemory</CODE> faster than shared memory for transferring data between two processes? appeared first on The Old New Thing.
Real-time speech-to-speech translation
Algorithms & Theory
Efficient Optimization With Ax, an Open Platform for Adaptive Experimentation
We’ve released Ax 1.0, an open-source platform that uses machine learning to automatically guide complex, resource-intensive experimentation. Ax is used at scale across Meta to improve AI models, tune production infrastructure, and accelerate advances in ML and even hardware design. Our accompanying paper, “Ax: A Platform for Adaptive Experimentation” explains Ax’s architecture, methodology, and how it [...] Read More... The post Efficient Optimization With Ax, an Open Platform for Adaptive Experimentation appeared first on Engineering at Meta.
AWS Build priority-based message processing with Amazon MQ and AWS App Runner
In this post, we show you how to build a priority-based message processing system using Amazon MQ for priority queuing, Amazon DynamoDB for data persistence, and AWS App Runner for serverless compute. We demonstrate how to implement application-level delays that high-priority messages can bypass, create real-time UIs with WebSocket connections, and configure dual-layer retry mechanisms for maximum reliability.
Generative UI: A rich, custom, visual interactive user experience for any prompt
Generative AI
Microspeak: Little-r
Harkening back to a very old mail program. The post Microspeak: Little-r appeared first on The Old New Thing.
Enhancing Uber’s Guidance Heatmap with Deep Probabilistic Models
How does Uber forecast earnings for drivers? Our latest deep dive explores the probabilistic prediction models behind earnings insights in the Driver app, from dynamic heatmaps to trends and alerts.
Announcing the Completion of the Core 2Africa System: Building the Future of Connectivity Together
Connecting Africa and the World We’re excited to share the completion of the core 2Africa infrastructure, the world’s longest open access subsea cable system. 2Africa is a landmark subsea cable system that sets a new standard for global connectivity. This project is the result of years of collaboration, innovation, and a shared vision to connect [...] Read More... The post Announcing the Completion of the Core 2Africa System: Building the Future of Connectivity Together appeared first on Engineering at Meta.
How Dash uses context engineering for smarter AI
Building effective, agentic AI isn’t just about adding more; it’s about helping the model focus on what matters most.
Enhancing HDR on Instagram for iOS With Dolby Vision
We’re sharing how we’ve enabled Dolby Vision and ambient viewing environment (amve) on the Instagram iOS app to enhance the video viewing experience. HDR videos created on iPhones contain unique Dolby Vision and amve metadata that we needed to support end-to-end Instagram for iOS is now the first Meta app to support Dolby Vision video, [...] Read More... The post Enhancing HDR on Instagram for iOS With Dolby Vision appeared first on Engineering at Meta.
How can I detect that Windows is running in S-Mode, redux
Doing it on hard mode. The post How can I detect that Windows is running in S-Mode, redux appeared first on The Old New Thing.
Open Source Is Good for the Environment
Most people have heard of open-source software. But have you heard about open hardware? And did you know open source can have a positive impact on the environment? On this episode of the Meta Tech Podcast, Pascal Hartig sits down with Dharmesh and Lisa to talk about all things open hardware, and Meta’s biggest announcements [...] Read More... The post Open Source Is Good for the Environment appeared first on Engineering at Meta.
AWS Know before you go – AWS re:Invent 2025 guide to Well-Architected and Cloud Optimization sessions
Are you ready to maximize your Well-Architected and Cloud Optimization learning and networking time at re:Invent 2025? We have put together this comprehensive guide to help you plan your schedule and make the most of the Well-Architected and cloud optimization sessions available this year. These sessions will deliver the practical guidance your teams need to lead strategic cloud initiatives, design next-generation architectures, optimize costs, or secure AI-powered systems.
Separating natural forests from other tree cover with AI for deforestation-free supply chains
Climate & Sustainability
I/O Observability for Uber’s Massive Petabyte-Scale Data Lake
Learn how Uber powers real-time, petabyte-scale I/O observability for its data lake powering 2 million compute jobs.
Shuffle: Making Random Feel More Human
Shuffle has always been one of Spotify’s most-used features, and also one of the most misunderstood. For... The post Shuffle: Making Random Feel More Human appeared first on Spotify Engineering.
A new quantum toolkit for optimization
Algorithms & Theory
Differentially private machine learning at scale with JAX-Privacy
Algorithms & Theory
StyleX: A Styling Library for CSS at Scale
StyleX is Meta’s styling system for large-scale applications. It combines the ergonomics of CSS-in-JS with the performance of static CSS, generating collision-free atomic CSS while allowing for expressive, type-safe style authoring. StyleX was open sourced at the end of 2023 and has since become the standard styling system across Meta products like Facebook, Instagram, WhatsApp, [...] Read More... The post StyleX: A Styling Library for CSS at Scale appeared first on Engineering at Meta.
Meta’s Generative Ads Model (GEM): The Central Brain Accelerating Ads Recommendation AI Innovation
We’re sharing details about Meta’s Generative Ads Recommendation Model (GEM), a new foundation model that delivers increased ad performance and advertiser ROI by enhancing other ads recommendation models’ ability to serve relevant ads. GEM’s novel architecture allows it to scale with an increasing number of parameters while consistently generating more precise predictions efficiently. GEM propagates [...] Read More... The post Meta’s Generative Ads Model (GEM): The Central Brain Accelerating Ads Recommendation AI Innovation appeared first on Engineering at Meta.
Introducing Nested Learning: A new ML paradigm for continual learning
Algorithms & Theory
1,500+ PRs Later: Spotify’s Journey with Our Background Coding Agent (Part 1)
For years, developer productivity has improved through better tooling. We have smarter IDEs, faster builds,... The post 1,500+ PRs Later: Spotify’s Journey with Our Background Coding Agent (Part 1) appeared first on Spotify Engineering.
DS-STAR: A state-of-the-art versatile data science agent
Data Mining & Modeling
Build better software to build software better
We manage the build pipeline that delivers Quip and Slack Canvas’s backend. A year ago, we were chasing exciting ideas to help engineers ship better code, faster. But we had one huge problem: builds took 60 minutes. With a build that slow, the whole pipeline gets less agile, and feedback doesn’t come to engineers until…
Building Zone Failure Resilience in Apache Pinot™ at Uber
By building zone failure resilience into Apache Pinot™, Uber strengthened reliability for real-time analytics, sped up release cycles, and created a foundation for future failure recovery. Now queries and ingestion stay strong, even when zones go dark.
Forecasting the future of forests with AI: From counting losses to predicting risk
Climate & Sustainability
GraphQL Data Mocking at Scale with LLMs and @generateMock
How Airbnb combines GraphQL infra, product context, and LLMs to generate and maintain convincing, type-safe mock data using a new directive.
Supercharging the ML and AI Development Experience at Netflix
Video Invisible Watermarking at Scale
At Meta, we use invisible watermarking for a variety of content provenance use cases on our platforms. Invisible watermarking serves a number of use cases, including detecting AI-generated videos, verifying who posted a video first, and identifying the source and tools used to create a video. We’re sharing how we overcame the challenges of scaling [...] Read More... The post Video Invisible Watermarking at Scale appeared first on Engineering at Meta.
Exploring a space-based, scalable AI infrastructure system design
General Science
Accelerating the magic cycle of research breakthroughs and real-world applications
Climate & Sustainability
Raising the Bar on ML Model Deployment Safety
How do you safely ship thousands of ML models without slowing teams down? At Uber, we’ve built guardrails that catch issues early, prevent rollbacks, and raise the bar on reliability. Discover how safety became a measurable standard across our ML ecosystem.
Toward provably private insights into AI use
Generative AI
StreetReaderAI: Towards making street view accessible via context-aware multimodal AI
Generative AI
How we are building the personal health coach
Generative AI
Post-Training Generative Recommenders with Advantage-Weighted Supervised Finetuning
Advancing Our Chef Infrastructure: Safety Without Disruption
Last year, I wrote a blog post titled Advancing Our Chef Infrastructure, where we explored the evolution of our Chef infrastructure over the years. We talked about the shift from a single Chef stack to a multi-stack model, and the challenges that came with it – from updating how we handle cookbook uploads to navigating…
With Mobius Labs' Aana models, we're bringing deeper multimodal understanding to Dropbox Dash
Dropbox welcomes Mobius Labs to advance Dash’s multimodal AI, integrating Aana’s efficient architecture to enhance photo and video understanding at Dropbox scale.
Enabling Deep Model Explainability with Integrated Gradients at Uber
Uber’s ML platform Michelangelo now supports Integrated Gradients, enabling scalable, interpretable deep model explainability across TensorFlow™ and PyTorch™. Learn how this powers trust, debugging, and decision-making throughout the ML life cycle.
Google Earth AI: Unlocking geospatial insights with foundation models and cross-modal reasoning
Climate & Sustainability
AWS BASF Digital Farming builds a STAC-based solution on Amazon EKS
This post was co-written with Frederic Haase and Julian Blau with BASF Digital Farming GmbH. At xarvio – BASF Digital Farming, our mission is to empower farmers around the world with cutting-edge digital agronomic decision-making tools. Central to this mission is our crop optimization platform, xarvio FIELD MANAGER, which delivers actionable insights through a range […]
A verifiable quantum advantage
Quantum
Half-Quadratic Quantization of large machine learning models
Learn how Half-Quadratic Quantization (HQQ) makes it easy to compress large AI models without sacrificing accuracy—no calibration data required.
Requirement Adherence: Boosting Data Labeling Quality Using LLMs
Harnessing the power of LLMs, Uber AI Solutions developed a system to reduce data labeling audits by 80%. Learn how the system detects labeling errors, boosting data quality.
Behind the Streams: Real-Time Recommendations for Live Events Part 3
A picture's worth a thousand (private) words: Hierarchical generation of coherent synthetic photo albums
Generative AI
Teaching Gemini to spot exploding stars with just a few examples
General Science
How and Why Netflix Built a Real-Time Distributed Graph: Part 1 — Ingesting and Processing Data…
Solving virtual machine puzzles: How AI is optimizing cloud computing
Algorithms & Theory
Using AI to identify genetic variants in tumors with DeepSomatic
General Science
Rebuilding Uber’s Apache Pinot™ Query Architecture
The next chapter of real-time analytics at Uber. Uncover how Uber restructured its Apache Pinot™ query architecture to unlock a ton of new features, redefining the capabilities of a mature OLAP platform.
Coral NPU: A full-stack platform for Edge AI
Generative AI
XR Blocks: Accelerating AI + XR innovation
Generative AI
Deploy Safety: Reducing customer impact from change
It’s mid 2023 and we’ve identified some opportunities to improve our reliability. Fast forward to January 2025. Customer impact hours are reduced from the peak by 90% and continuing to trend downward. We’re a year and half into the Deploy Safety Program at Slack, improving the way we deploy, uplifting our safety culture and continuing…
​​Speech-to-Retrieval (S2R): A new approach to voice search
Machine Intelligence
Cadence Workflow Joins the Cloud Native Computing Foundation
Cadence Workflow is now part of the Cloud Native Computing Foundation®. This milestone strengthens our commitment to open source and ensures continued investment in the project’s future.
A collaborative approach to image generation
Generative AI
A practical blueprint for evaluating conversational AI at scale
Building Dropbox Dash taught us that in the foundation-model era, AI evaluations matter just as much as model training.
How Uber Standardized Mobile Analytics for Cross-Platform Insights
Follow Uber’s journey of standardizing mobile analytics. We unified event instrumentation, collected consistent metadata, and provided sampled event coverage to reduce dev effort and deliver quality, cross-platform insights.
AWS Modernization of real-time payment orchestration on AWS
The global real-time payments market is experiencing significant growth. According to Fortune Business Insights, the market was valued at USD 24.91 billion in 2024 and is projected to grow to USD 284.49 billion by 2032, with a CAGR of 35.4%. Similarly, Grand View Research reports that the global mobile payment market, valued at USD 88.50 […]
Introducing interactive on-device segmentation in Snapseed
Human-Computer Interaction and Visualization
AI as a research partner: Advancing theoretical computer science with AlphaEvolve
Algorithms & Theory
AWS Build resilient generative AI agents
Generative AI agents in production environments demand resilience strategies that go beyond traditional software patterns. AI agents make autonomous decisions, consume substantial computational resources, and interact with external systems in unpredictable ways. These characteristics create failure modes that conventional resilience approaches might not address. This post presents a framework for AI agent resilience risk analysis […]
The anatomy of a personal health agent
Generative AI
100X Faster: How We Supercharged Netflix Maestro’s Workflow Engine
Building a Resilient Data Platform with Write-Ahead Log at Netflix
Uber’s Strategy to Upgrading 2M+ Spark Jobs
Discover how Uber migrated 2M daily Apache Spark™ jobs to Spark 3.3 with automation and safe shadow testing, achieving over $4M in savings.
Towards better health conversations: Research insights on a “wayfinding” AI agent based on Gemini
Generative AI
AfriMed-QA: Benchmarking large language models for global health
Generative AI
Time series foundation models can be few-shot learners
Generative AI
Beyond Winning: Spotify’s Experiments with Learning Framework
TL;DR Spotify’s experimentation platform, Confidence, scaled product decision-making across hundreds of... The post Beyond Winning: Spotify’s Experiments with Learning Framework appeared first on Spotify Engineering.
Scaling Muse: How Netflix Powers Data-Driven Creative Insights at Trillion-Row Scale
AWS A scalable, elastic database and search solution for 1B+ vectors built on LanceDB and Amazon S3
In this post, we explore how Metagenomi built a scalable database and search solution for over 1 billion protein vectors using LanceDB and Amazon S3. The solution enables rapid enzyme discovery by transforming proteins into vector embeddings and implementing a serverless architecture that combines AWS Lambda, AWS Step Functions, and Amazon S3 for efficient nearest neighbor searches.
Deep researcher with test-time diffusion
Machine Intelligence
Empowering Netflix Engineers with Incident Management
Sensible Agent: A framework for unobtrusive interaction with proactive AR agents
Human-Computer Interaction and Visualization
Adding Determinism and Safety to Uber IAM Policy Changes
Uber’s Policy Simulator tool enhances the safety and predictability of IAM policy changes by allowing policy authors to preview the impact of their modifications prior to deployment, ensuring deterministic outcomes after policy change deployment.
Viaduct, Five Years On: Modernizing the Data-Oriented Service Mesh
A more powerful engine and a simpler API for our data-oriented mesh
Migrating Airbnb’s JVM Monorepo to Bazel
By: Jack Dai, Howard Ho, Loc Dinh, Stepan Goncharov, Ted Tenedorio, and Thomas Bao At Airbnb, we recently completed migrating our largest repo, the JVM monorepo, to Bazel. This repo contains tens of millions of lines of Java, Kotlin, and Scala code that power the vast array of backend services and data pipelines behind airbnb.com. Migration in numbers […]
Making LLMs more accurate by using all of their layers
Algorithms & Theory
Learn Your Way: Reimagining textbooks with generative AI
Education Innovation
VaultGemma: The world's most capable differentially private LLM
Generative AI
Speculative cascades — A hybrid approach for smarter, faster LLM inference
Generative AI
Smarter nucleic acid design with NucleoBench and AdaBeam
Health & Bioscience
Open-Sourcing Starlark Worker: Define Cadence Workflows with Starlark
Starlark meets Cadence. We’re excited to announce the open-source release of Starlark Worker, a powerful integration between Cadence workflow orchestration and the Starlark scripting language to simplify workflow execution.
Accelerating scientific discovery with AI-powered empirical software
General Science
Building Uber’s Data Lake: Batch Data Replication Using HiveSync
Go behind the scenes of how Uber powers batch data replication at scale using HiveSync to keep its data lake consistent, reliable, and performant.
Building Slack’s Anomaly Event Response
As cyberattacks evolve to unprecedented levels of sophistication and speed, the time gap between breach detection and response has never been more critical. Traditional security approaches often operate reactively, identifying compromises only after damage has occurred. This delay grants attackers a tactical advantage, forcing security teams to focus on damage assessment and remediation rather than…
Controlling the Rollout of Large-Scale Monorepo Changes
Discover how Uber controls the blast radius of large-scale commits with cross-cutting service deployment orchestration. As Uber embraces fully automated continuous deployment, strong safety practices are more critical than ever.
How Google’s AI can help transform health professions education
Education Innovation
Hack Week 2025: How these engineers liquid-cooled a GPU server
How our engineers designed a custom liquid cooling system for high-powered GPU servers to tackle the rising thermal demands of AI workloads.
How Uber Serves over 150 Million Reads per Second from Integrated Cache with Stronger Consistency Guarantees
Uber serves over 150 million reads per second from its integrated cache, pushing hit rates above 99.9%. Uncover the latest improvements to the integrated cache infrastructure, CacheFront.
A scalable framework for evaluating health language models
Generative AI
AWS Simplify multi-tenant encryption with a cost-conscious AWS KMS key strategy
In this post, we explore an efficient approach to managing encryption keys in a multi-tenant SaaS environment through centralization, addressing challenges like key proliferation, rising costs, and operational complexity across multiple AWS accounts and services. We demonstrate how implementing a centralized key management strategy using a single AWS KMS key per tenant can maintain security and compliance while reducing operational overhead as organizations scale.
From massive models to mobile magic: The tech behind YouTube real-time generative AI effects
Generative AI
From Facts & Metrics to Media Machine Learning: Evolving the Data Engineering Function at Netflix
Securing private data at scale with differentially private partition selection
Algorithms & Theory
AWS How CommBank made their CommSec trading platform highly available and operationally resilient
In this post, we explore how CommSec, Australia's leading online broker, transitioned from a multicloud environment to AWS as their sole cloud provider while implementing Amazon Application Recovery Controller (ARC) zonal shift to maintain high availability and operational resilience. The consolidation resulted in significant benefits including 25% base capacity reduction, two times faster deployments, and improved failover capabilities through ARC zonal shift, enabling CommSec to continue serving millions of customers while meeting strict regulatory requirements.
Driving AI adoption at Dropbox: a conversation with CTO Ali Dasdan
How Dropbox approached AI adoption not just as a tool for automation, but as a catalyst for rethinking the entire software development lifecycle.
ML Observability: Bringing Transparency to Payments and Beyond
Beyond billion-parameter burdens: Unlocking data synthesis with a conditional generator
Generative AI
AWS How Karrot built a feature platform on AWS, Part 1: Motivation and feature serving
This two-part series shows how Karrot developed a new feature platform, which consists of three main components: feature serving, a stream ingestion pipeline, and a batch ingestion pipeline. This post starts by presenting our motivation, our requirements, and the solution architecture, focusing on feature serving.
AWS How Karrot built a feature platform on AWS, Part 2: Feature ingestion
This two-part series shows how Karrot developed a new feature platform, which consists of three main components: feature serving, a stream ingestion pipeline, and a batch ingestion pipeline. This post covers the process of collecting features in real-time and batch ingestion into an online store, and the technical approaches for stable operation.
AWS Deploy LLMs on Amazon EKS using vLLM Deep Learning Containers
In this post, we demonstrate how to deploy the DeepSeek-R1-Distill-Qwen-32B model using AWS DLCs for vLLMs on Amazon EKS, showcasing how these purpose-built containers simplify deployment of this powerful open source inference engine. This solution can help you solve the complex infrastructure challenges of deploying LLMs while maintaining performance and cost-efficiency.
Enabling physician-centered oversight for AMIE
Generative AI
Seamless Istio Upgrades at Scale
How Airbnb upgrades tens of thousands of pods on dozens of Kubernetes clusters to new Istio versions
Achieving High Availability with distributed database on Kubernetes at Airbnb
How to achieve high availability with distributed database on Kubernetes.
Understanding and Improving SwiftUI Performance
New techniques we’re using at Airbnb to improve and maintain performance of SwiftUI features at scale
Load Testing with Impulse at Airbnb
Comprehensive Load Testing with Load Generator, Dependency Mocker, Traffic Collector, and More
Achieving 10,000x training data reduction with high-fidelity labels
Human-Computer Interaction and Visualization
Insulin resistance prediction from wearables and routine blood biomarkers
Generative AI
Highly accurate genome polishing with DeepPolisher: Enhancing the foundation of genomic research
General Science
AWS Maximizing Business Value Through Strategic Cloud Optimization
As cloud spending continues to surge, organizations must focus on strategic cloud optimization to maximize business value. This blog post explores key insights from MIT Technology Review's publication on cloud optimization, highlighting the importance of viewing optimization as a continuous process that encompasses all six AWS Well-Architected pillars.
MLE-STAR: A state-of-the-art machine learning engineering agent
Machine Intelligence
Simulating large systems with Regression Language Models
Generative AI
SensorLM: Learning the language of wearable sensors
Generative AI
AWS How Zapier runs isolated tasks on AWS Lambda and upgrades functions at scale
In this post, you’ll learn how Zapier has built their serverless architecture focusing on three key aspects: using Lambda functions to build isolated Zaps, operating over a hundred thousand Lambda functions through Zapier's control plane infrastructure, and enhancing security posture while reducing maintenance efforts by introducing automated function upgrades and cleanup workflows into their platform architecture.
AWS How HashiCorp made cross-Region switchover seamless with Amazon Application Recovery Controller
In this post, we discuss HashiCorp’s journey from manual, stress-inducing failover procedures to a streamlined, confident approach that fundamentally changed how they deliver on their enterprise-grade resilience promises.
Synthetic and federated: Privacy-preserving domain adaptation with LLMs for mobile applications
Generative AI
LSM-2: Learning from incomplete wearable sensor data
Generative AI
AWS Implement monitoring for Amazon EKS with managed services
In this post, we show you how to implement comprehensive monitoring for Amazon Elastic Kubernetes Service (Amazon EKS) workloads using AWS managed services. This solution demonstrates building an EKS platform that combines flexible compute options with enterprise-grade observability using AWS native services and OpenTelemetry.
Measuring heart rate with consumer ultra-wideband radar
Hardware & Architecture
Android Earthquake Alerts: A global system for early warning
Data Mining & Modeling
Enhancing Code Quality at Scale with AI-Powered Code Reviews
Microsoft’s AI-powered code review assistant has transformed pull request workflows by automating routine checks, suggesting improvements, and enabling conversational Q&A, leading to faster PR completion, improved code quality, and enhanced developer onboarding. Its seamless integration and customizability have driven widespread adoption within Microsoft The post Enhancing Code Quality at Scale with AI-Powered Code Reviews appeared first on Engineering@Microsoft.
Making file encryption fast and secure for teams with advanced key management
We developed features to help teams limit their security risks and respond more effectively to potential threats or breaches.
Graph foundation models for relational data
Algorithms & Theory
MedGemma: Our most capable open models for health AI development
Generative AI
Seventh-generation server hardware at Dropbox: our most efficient and capable architecture yet
This generation represents our most efficient, capable, and scalable architecture yet—and it’ll help us as we continue to build AI products like Dropbox Dash.
Making group conversations more accessible with sound localization
Human-Computer Interaction and Visualization
How we created HOV-specific ETAs in Google Maps
Algorithms & Theory
REGEN: Empowering personalized recommendations with natural language
Data Mining & Modeling
MUVERA: Making multi-vector retrieval as fast as single-vector search
Algorithms & Theory
From research to climate resilience
Climate & Sustainability
Unlocking rich genetic insights through multimodal AI with M-REGLE
Generative AI
A colorful quantum future
Quantum
Optimizing LLM-based trip planning
Algorithms & Theory
Zooming in: Efficient regional environmental risk assessment with generative AI
Climate & Sustainability
Listening, Learning, and Helping at Scale: How Machine Learning Transforms Airbnb’s Voice Support Experience
A look into how Airbnb uses speech recognition, intent detection, and language models to understand users and assist agents more effectively.
Learning to clarify: Multi-turn conversations with Action-Based Contrastive Self-Training
Generative AI
How we brought multimedia search to Dropbox Dash
Our multimedia retrieval features allow users to find images, video, and audio just as easily as they find documents.
Fine-tuning LLMs with user-level differential privacy
Algorithms & Theory
Google Research at Google I/O 2025
Climate & Sustainability
Deeper insights into retrieval augmented generation: The role of sufficient context
Data Mining & Modeling
Differential privacy on trust graphs
Algorithms & Theory
Bringing 3D shoppable products online with generative AI
Generative AI
Incident Report: Spotify Outage on April 16, 2025
On April 16, Spotify experienced an outage that affected users worldwide. Here is what happened and what we... The post Incident Report: Spotify Outage on April 16, 2025 appeared first on Spotify Engineering.
A new light on neural connections
General Science
Making complex text understandable: Minimally-lossy text simplification with Gemini
Generative AI
Amplify Initiative: Localized data for globalized AI
Generative AI
AMIE gains vision: A research AI agent for multimodal diagnostic dialogue
Generative AI
Benchmarking LLMs for global health
Generative AI
Improving brain models with ZAPBench
General Science
Introducing Mobility AI: Advancing urban transportation
Algorithms & Theory
A new hybrid platform for quantum simulation of magnetism
Quantum
InstructPipe: Generating Visual Blocks pipelines with human instructions and LLMs
Human-Computer Interaction and Visualization
Teaching machines the language of biology: Scaling large language models for next-generation single-cell analysis
Health & Bioscience
Optimizing Our E2E Pipeline
In the world of DevOps and Developer Experience (DevXP), speed and efficiency can make a big difference on an engineer’s day-to-day tasks. Today, we’ll dive into how Slack’s DevXP team took some existing tools and used them to optimize an end-to-end (E2E) testing pipeline. This lowered build times and reduced redundant processes, saving both time…
Geospatial Reasoning: Unlocking insights with generative AI and multiple foundation models
Climate & Sustainability
Evaluating progress of LLMs on scientific problem-solving
General Science
ECLeKTic: A novel benchmark for evaluating cross-lingual knowledge transfer in LLMs
Generative AI
Accelerating Large-Scale Test Migration with LLMs
How Airbnb migrated nearly 3.5K Enzyme test files to React Testing Library in just 6 weeks using automation and LLMs
Embedding-Based Retrieval for Airbnb Search
Our journey in applying embedding-based retrieval techniques to build an accurate and scalable candidate retrieval system for Airbnb Homes search
The evolution of graph learning
Algorithms & Theory
Deciphering language processing in the human brain through LLM representations
General Science
Load balancing with random job arrivals
Algorithms & Theory
Loss of Pulse Detection on the Google Pixel Watch 3
Health & Bioscience
Generating synthetic data with differentially private LLM inference
Machine Intelligence
How we built enterprise search to be secure and private
Many don’t know that “Slack” is in fact a backronym—it stands for “Searchable Log of all Communication and Knowledge”. And these days, it’s not just a searchable log: with Slack AI, Slack is now an intelligent log, leveraging the latest in generative AI to securely surface powerful, time-saving insights. We built Slack AI from the…
From diagnosis to treatment: Advancing AMIE for longitudinal disease management
Generative AI
Discovering new words with confidential federated analytics
Mobile Systems
How Microsoft Engineers Build AI: Learn about scalable RAG-enabled AI Apps
For developers, the emphasis on building intelligence into apps has never been clearer. Over the next three years, 92% of companies plan on investing in AI to achieve business outcomes like enhancing productivity and delivering better customer service. At Microsoft, developers and engineers are pushing the boundaries of AI at scale, crafting applications that harness […] The post How Microsoft Engineers Build AI: Learn about scalable RAG-enabled AI Apps appeared first on Engineering@Microsoft.
Mind the GAP: Geometry Aware Passthrough mitigates cybersickness
Human-Computer Interaction and Visualization
Accelerating scientific breakthroughs with an AI co-scientist
Generative AI
Mechanism design for large language models
Algorithms & Theory
Building AI for the pluralistic society
Generative AI
Urban mobility solutions: Calibrating digital twins at scale
Algorithms & Theory
Chain of Agents: Large language models collaborating on long-context tasks
Generative AI
Parfait: Enabling private AI with research tools
Distributed Systems & Parallel Computing
Zero-shot mono-to-binaural speech synthesis
Sound & Accoustics
Automated Accessibility Testing at Slack
At Slack, customer love is our first priority and accessibility is a core tenet of customer trust. We have our own Slack Accessibility Standards that product teams follow to guarantee their features are compliant with Web Content Accessibility Guidelines (WCAG). Our dedicated accessibility team supports developers in following these guidelines throughout the development process. We…
Understanding Transformer reasoning capabilities via graph algorithms
Algorithms & Theory
Migration Automation: Easing the Jenkins → GHA shift with help from AI
Overview The past few months have been exciting times for Slack’s CI infrastructure. After years of developer frustration with Jenkins (everything from security issues to downtime to generally poor UX) internal pressure led us to move a majority of Slack’s CI jobs from Jenkins to GitHub Actions. My intern project at Slack this summer involved…
Dev Box Ready-To-Code Dev Box images template
Microsoft One Engineering System (1ES) team shares a sample for building Ready-To-Code Dev Box environments pre-configured with the necessary tools, repositories, and settings, ensuring consistency and reliability across teams. The post Dev Box Ready-To-Code Dev Box images template appeared first on Engineering@Microsoft.
Common annotated security keys
In April 2021, GitHub announced changes to their security token format that significantly enhanced security. The improvement leveraged two straightforward techniques: a fixed signature in the generated token and a checksum – both of which are highly effective in eliminating false positives (noise) and false negatives (missed findings). Microsoft also implements these techniques widely in […] The post Common annotated security keys appeared first on Engineering@Microsoft.
Managed DevOps Pools – The Origin Story
Learn about how Microsoft's 1ES organization developed an internal service called "1ES Hosted Pools" to manage Microsoft's diverse Engineering system infrastructure and how it helped make significant improvements to productivity, cost savings, and security. This solution will soon be available as a third-party offering named "Managed DevOps Pools". The post Managed DevOps Pools – The Origin Story appeared first on Engineering@Microsoft.
Developing with Accessibility in Mind at Microsoft
Celebrate the Global Accessibility Awareness Day GAAD by taking actionable and easy steps to build accessibility into your development life-cycle! Learn how tools like Accessibility Insights & Visual Studio can help find accessibility issues in development. The post Developing with Accessibility in Mind at Microsoft appeared first on Engineering@Microsoft.
Copy-on-Write performance and debugging
This is a follow-up to our previous coverage of Dev Drive and copy-on-write (CoW) linking. See our previous articles from May 24, 2023, October 13, 2023, and November 2, 2023. Dev Drive was released in Windows 11 in October, 2023, and will be part of Windows Server 2025 this fall. Server 2025 and Windows 11 […] The post Copy-on-Write performance and debugging appeared first on Engineering@Microsoft.
How we built “Ask Learn”, the RAG-based knowledge service
My name is Bob Tabor and I’m a member of Microsoft’s Skilling organization. We create documentation and training content about Azure, developer tooling and languages, AI, Windows and much more hosted at Microsoft Learn. Our organization also develops and maintains the content publishing platform, the content hosting platform, the interactivity, and popular sites like Microsoft […] The post How we built “Ask Learn”, the RAG-based knowledge service appeared first on Engineering@Microsoft.
Enhancing reliability in Microsoft Fabric and Azure Synapse through load testing
Microsoft has employed Azure Load Testing to enhance the reliability of Microsoft Fabric and Azure Synapse, ensuring they can handle high loads. Azure Synapse integrates various data analytics technologies, while Microsoft Fabric offers a full enterprise analytics solution. Through rigorous daily and weekly load testing, involving complex scenarios and extensive data sizes, Microsoft aims to identify and rectify potential issues, ensuring optimal performance. This testing, integrated within their development pipelines, supports continuous improvement, leverages Azure's scalability, and utilizes Power BI for detailed reporting, ultimately enhancing service reliability and user experience. The post Enhancing reliability in Microsoft Fabric and Azure Synapse through load testing appeared first on Engineering@Microsoft.
Accessibility Insights now supports WCAG 2.2 AA
To celebrate the International Day for Persons with Disabilities on December 3rd we have some exciting new announcements for Accessibility Insights, Microsoft’s open-source suite of tools to help developers deliver accessible software! Technology plays a huge role in empowering everyone, including people with disabilities around the globe. Developers can now build with more accessibility in […] The post Accessibility Insights now supports WCAG 2.2 AA appeared first on Engineering@Microsoft.