Robuta

Nov 17, 2025 - 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...

Apr 1, 2025 - Open source has played an essential role in the tech industry and beyond. Whether in the AI/ML, web, or mobile space, our open source community grew and...

Nov 4, 2025 - How does Meta empower its product teams to harness GenAI’s power responsibly? In this post, we delve into how Meta addresses the challenges of safeguarding...

Dec 19, 2025 - Incident investigation can be a daunting task in today’s digital landscape, where large-scale systems comprise numerous interconnected components and...

Jan 29, 2026 - We’ve improved personalized video recommendations on Facebook Reels by moving beyond metrics such as likes and watch time and directly leveraging user...

Oct 20, 2025 - Disaggregated Schedule Fabric (DSF) is Meta’s next-generation network fabric technology for AI training networks that addresses the challenges of existing...

Engineering at Meta Blog

Jan 29, 2026 - WhatsApp has adopted and rolled out a new layer of security for users – built with Rust – as part of its effort to harden defenses against malware threats....

Dec 10, 2024 - We’re explaining the end-to-end systems the Facebook app leverages to deliver relevant content to people. Learn about our video-unification efforts that have...

Dec 3, 2024 - AI plays a fundamental role in creating valuable connections between people and advertisers within Meta’s family of apps. Meta’s ad recommendation engine,...

Oct 16, 2025 - Sapling is a scalable, user-friendly, and open-source source control system that powers Meta’s monorepo. As discussed at the GitMerge 2024 conference...

Q&A about the site for professionals, academics, and students working within the systems development life cycle

Nov 14, 2025 - 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...

Dec 15, 2025 - Meta’s secure-by-default frameworks wrap potentially unsafe OS and third-party functions, making security the default while preserving developer speed and...

May 5, 2025 - We are inspired by the possibilities of AI to help people be more creative, productive, and stay closely connected on WhatsApp, so we set out to build a new...

May 20, 2025 - Today we are announcing an alpha version of Pyrefly, an open source Python type checker and IDE extension crafted in Rust. Pyrefly is a static type checker...

Jan 23, 2025 - We’re sharing details about Strobelight, Meta’s profiling orchestrator. Strobelight combines several technologies, many open source, into a single service that...

Apr 6, 2021 - How Facebook uses machine learning and other methods to prioritize video encoding and ensure the best viewing experience for everyone.

Sep 2, 2025 - We’re sharing how Meta is applying machine learning (ML) and diversity algorithms to improve notification quality and user experience.  We’ve introduced a...

Aug 11, 2021 - To bring the power of CI proofs to the masses, we’ve open sourced Winterfell, a general-purpose STARK prover and verifier.

Nov 17, 2025 - 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...

Mar 24, 2020 - Katran creates a software-based solution to load balancing with a reengineered forwarding plane that takes advantage of recent innovations in kernel...

Jan 3, 2019 - Visit the post for more.

Nov 20, 2025 - With key transparency, WhatsApp provides a set of proofs that affirms the correctness of public encryption keys.

Oct 19, 2020 - Pysa is an open source static analysis tool we’ve built to detect and prevent security and privacy issues in Python code.

Oct 16, 2025 - We’re sharing details on our journey to scale Meta’s Backbone network to support the increasing demands of new and existing AI workloads....

Oct 5, 2021 - Now that our platforms are up and running after yesterday’s outage, we are sharing more detail on what happened and what we've learned.

Nov 4, 2025 - 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,...

Nov 14, 2025 - 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...

Dec 18, 2024 - How did the Threads iOS team maintain the app’s performance during its incredible growth? Here’s how Meta’s Threads team thinks about...

May 15, 2025 - Back in 2017, engineers at Meta sought to create a type checker for Instagram’s typed Python codebase. Years later, as the type system continued to...

Oct 16, 2024 - At Open Compute Project Summit (OCP) 2024, we’re sharing details about our next-generation network fabric for our AI training clusters. We’ve expanded our...