Engineering News Feed
Curated daily updates from Netflix, Meta, LinkedIn, Uber, Airbnb, Discord, Cloudflare, and GitHub. Stories are grouped into Web Engineering, Cloud/DevOps, AI/ML, Security, Data Systems, and Infrastructure.
GitHub Agentic Workflows are built with isolation, constrained outputs, and comprehensive logging. Learn how our threat model and security architecture help teams run agents safely in GitHub Actions. The post Under the hood: Security architecture of GitHub Agentic Workflows appeared first on The GitHub Blog .
Read OriginalCloudflare’s new Web and API Vulnerability Scanner helps teams proactively find logic flaws. By using AI to build API call graphs, we identify vulnerabilities that standard defensive tools miss.
Read OriginalToday we’re disclosing request smuggling vulnerabilities when our open source Pingora service is deployed as an ingress proxy and how we’ve fixed them in Pingora 0.8.0.
Read OriginalDiscover how Cloudflare partners TachTech and Adapture are shattering the 18-month migration myth, deploying agile SASE for global enterprises in weeks by treating security as software.
Read OriginalGitHub Security Lab Taskflow Agent is very effective at finding Auth Bypasses, IDORs, Token Leaks, and other high-impact vulnerabilities. The post How to scan for vulnerabilities with GitHub Security Lab’s open source AI-powered framework appeared first on The GitHub Blog .
Read OriginalValentin Geffrier , Tanguy Cornuau Each year, we bring the Analytics Engineering community together for an Analytics Summit — a multi-day internal conference to share analytical deliverables across Netflix, discuss analytic practice, and build relationships within the community. This post is one of several topics prese
Read OriginalCloudflare One unifies data security from endpoint to prompt: RDP clipboard controls, operation-mapped logs, on-device DLP, and Microsoft 365 Copilot scanning via API CASB.
Read OriginalThe Cloudflare One Client now features the ability to actively probe and adjust packet sizes. This update eliminates the problems caused by tunnel layering and MTU differences, providing more stability and resiliency.
Read OriginalHow we changed our Observability as Code alert review process and cut development cycles from weeks to minutes. Observability as Code (OaC) — defining alerts, dashboards, and SLOs via code rather than UI — is table stakes for large engineering organizations. With OaC, observability adopts software development’s version
Read OriginalBy Harshad Sane Ranker is one of the largest and most complex services at Netflix. Among many things, it powers the personalized rows you see on the Netflix homepage, and runs at an enormous scale. When we looked at CPU profiles for this service, one feature kept standing out: video serendipity scoring — the logic that
Read OriginalFFmpeg is truly a multi-tool for media processing. As an industry-standard tool it supports a wide variety of audio and video codecs and container formats. It can also orchestrate complex chains of filters for media editing and manipulation. For the people who use our apps, FFmpeg plays an important role in enabling ne
Read OriginalMeta recognizes the long-term benefits of jemalloc, a high-performance memory allocator, in its software infrastructure. We are renewing focus on jemalloc, aiming to reduce maintenance needs and modernize the codebase while continuing to evolve the allocator to adapt to the latest hardware and workloads. We are committ
Read OriginalAuthors: Harshad Sane , Andrew Halaney Imagine this — you click play on Netflix on a Friday night and behind the scenes hundreds of containers spring to action in a few seconds to answer your call. At Netflix, scaling containers efficiently is critical to delivering a seamless streaming experience to millions of member
Read OriginalWe are open-sourcing the initial version of RCCLX – an enhanced version of RCCL that we developed and tested on Meta’s internal workloads. RCCLX is fully integrated with Torchcomms and aims to empower researchers and developers to accelerate innovation, regardless of their chosen backend. Communication patterns for AI
Read Original2025 was a big year for research at Airbnb, as we made significant progress toward our mission to use AI, data science, and machine learning to become the best travel and living platform. Specifically, we doubled down on our presence at long-standing venues like KDD and CIKM — two of the most selective conferences in m
Read OriginalAvneesh Saluja , Santiago Castro , Bowei Yan , Ashish Rastogi Introduction Netflix’s core mission is to connect millions of members around the world with stories they’ll love. This requires not just an incredible catalog, but also a deep, machine-level understanding of every piece of content in that catalog, from the b
Read OriginalHow Airbnb ships dynamic config changes safely and reliably By Cosmo Qiu , Bo Teng , Siyuan Zhou , Ankur Soni , Willis Harvey Dynamic configuration is a core infrastructure capability in modern systems. It allows developers to change runtime behavior without restarting or redeploying services, even as the number of ser
Read OriginalBaolin Li , Lingyi Liu , Binh Tang , Shaojing Li Introduction Pre-training gives Large Language Models (LLMs) broad linguistic ability and general world knowledge, but post-training is the phase that actually aligns them to concrete intents, domain constraints, and the reliability requirements of production environment
Read OriginalRam Srivasta Kannan, Wale Akintayo , Jay Bharadwaj , John Crimmins , Shengwei Wang, Zhitao Zhu Introduction In 2024, the Online Data Stores team at Netflix conducted a comprehensive review of the relational database technologies used across the company. This evaluation examined functionality, performance, and total cos
Read OriginalAnna Sulkina has always been a traveler, and we’re lucky her travels have brought her to Airbnb. Anna is a Senior Director of Engineering, and she’s responsible for Application & Cloud infrastructure. She brings over two decades of industry experience to Airbnb, including work spanning the stack from the frontend t
Read OriginalWHAT IT IS The rise of agentic software development means code is being written, reviewed, and shipped faster than ever before across the entire industry. It also means that testing frameworks need to evolve for this rapidly changing landscape. Faster development demands faster testing that can catch bugs as they land
Read OriginalWe’re sharing details of the role backend aggregation (BAG) plays in building Meta’s gigawatt-scale AI clusters like Prometheus. BAG allows us to seamlessly connect thousands of GPUs across multiple data centers and regions. Our BAG implementation is connecting two different network fabrics – Disaggregated Schedule Fab
Read OriginalPublic school to PhD The story of Airbnb’s Head Economist for Policy and Director of Data Science involves geology, co-teaching with a Nobel Prize winner, and CSI. (No, not the hit TV franchise.) Peter Coles was born and raised in Milwaukee, Wisconsin. He studied math at Princeton, earned his PhD in economics at Stanfo
Read OriginalThe AI Evolution of Graph Search at Netflix: From Structured Queries to Natural Language By Alex Hutter and Bartosz Balukiewicz Our previous blog posts ( part 1 , part 2 , part 3 ) detailed how Netflix’s Graph Search platform addresses the challenges of searching across federated data sets within Netflix’s enterprise e
Read OriginalInternal Editorial
Cross-tab state consistency patterns using BroadcastChannel, storage events, and server truth.
Read ReportRollback orchestration for static assets and API compatibility without breaking active sessions.
Read ReportA production method for identifying and removing non-critical JavaScript on key routes.
Read ReportWhat to measure so your design system investment improves delivery speed and quality.
Read ReportPractical versioning and compatibility workflows that keep frontend teams unblocked.
Read ReportPrepare web apps for launch spikes with asset strategy, caching layers, and synthetic load tests.
Read ReportReducing interaction delay by hydrating only critical islands first on high-traffic pages.
Read ReportBackoff, jitter, and state reconciliation patterns for resilient real-time user interfaces.
Read ReportHow to enforce route contracts with compile-time checks to prevent navigation regressions.
Read ReportReliable UI update strategies for event-driven dashboards using streams and incremental rendering.
Read ReportA governance model that keeps frontend standards consistent across teams and repos.
Read ReportAutomate visual and interaction checks in CI to reduce regressions before merge.
Read ReportPrevent API drift from breaking frontend flows with lightweight contract tests.
Read ReportAn incident workflow for diagnosing UI breakage, rollback strategy, and postmortems.
Read ReportUse capability checks to ship resilient experiences across changing browser support.
Read ReportChoosing between cookies, localStorage, sessionStorage, and IndexedDB for real apps.
Read ReportCreate release notes that help engineers and support teams trace UI changes quickly.
Read ReportAudit layouts for overflow, spacing drift, and breakpoint regressions with confidence.
Read ReportA repeatable checklist for diagnosing hydration mismatches and rendering divergence.
Read ReportHow to define and enforce per-component performance budgets in design systems.
Read ReportHow to decide between static pages, server routes, and edge rendering for fast and resilient experiences.
Read ReportA pragmatic CSS strategy for teams shipping multiple products without style regressions.
Read ReportFrom Figma variables to runtime CSS variables, with versioning and rollout guardrails.
Read ReportSet practical budgets for JavaScript, images, and third-party scripts before performance degrades.
Read ReportBake accessibility into component APIs so each product squad ships consistent, compliant interfaces.
Read ReportValidation, error recovery, and user feedback patterns that prevent drop-off in critical flows.
Read ReportMove beyond synthetic checks by instrumenting actual user experience, errors, and route latency.
Read ReportResponsive images, CDN transforms, and format negotiation for fast pages without quality loss.
Read ReportStandards and review practices that keep large frontend programs consistent.
Read ReportRelease techniques that prevent broken assets and mixed-version client states.
Read ReportWhat metrics to expose so teams can correlate user impact with deployments.
Read ReportBalancing unit, integration, and E2E tests for confidence and speed.
Read ReportVersioning, schema validation, and contract tests that reduce breakages between frontend and backend teams.
Read ReportReliable indexing strategies for modern JavaScript-heavy applications.
Read ReportSession verification and access control models designed for edge runtimes.
Read ReportFeature flags, canary rollouts, and gradual exposure patterns for lower-risk web deployments.
Read ReportContract-first mocking workflows that unblock frontend delivery early.
Read ReportChoosing local, global, and server state boundaries for predictable UI behavior.
Read ReportInlining and extraction strategies that improve first paint without regressions.
Read ReportLocalization workflows and routing models for multilingual web products.
Read ReportManaging environment-driven behavior safely in client and server contexts.
Read ReportA layered validation model for reliability, accessibility, and developer velocity.
Read ReportKeeping CI fast and dependency boundaries clear in monorepo setups.
Read ReportUsing flags to ship frontend changes gradually with measurable risk control.
Read ReportReducing stale asset issues with deterministic asset naming and purge policies.
Read ReportCSP, HSTS, and related headers every production web app should validate.
Read ReportWhere islands shine and where they add unnecessary complexity.
Read ReportRelease management practices that prevent breaking changes across product teams.
Read ReportHow to identify and prioritize the biggest Web Vitals regressions quickly.
Read ReportIntegrating automated and manual a11y checks into CI and QA workflows.
Read ReportCursor pagination patterns that simplify infinite scrolling and filtering.
Read ReportFragment conventions that keep frontends maintainable as schema complexity grows.
Read ReportDesigning graceful retry and fallback behavior for unstable networks.
Read ReportTradeoffs between cookies, tokens, and session handling for web apps.
Read ReportTeam structures and ownership models for large component libraries.
Read ReportService worker and CDN cache strategies that improve repeat-load performance.
Read ReportShipping resilient interfaces that still work when JavaScript fails.
Read ReportA practical checklist for reducing bundle size and speeding up production builds.
Read ReportHow to split server and client components for better performance and maintainability.
Read ReportPatterns for structuring nested layouts and route groups without creating coupling.
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