September 2025 - Engineering at Meta
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We’re introducing Candle, a new submarine cable connecting countries across East Asia and Southeast Asia. We’re also announcing several updates to our subsea cables across the Asia-Pacific, including the completion of the Bifrost cable system. The Asia-Pacific (APAC) region is home to over 58% of the world’s internet users1 – many who rely on robust [...] Read More... The post Introducing the Candle Subsea Cable, Updates to Our Asia-Pacific Connectivity Projects appeared first on Engi...| Engineering at Meta
Key Takeways: With billions of Android app users, we’re always looking to improve the Meta app experience, and in this post, we explore the ways we’ve leveraged Android’s Baseline Profiles to significantly improve their performance. We discuss the performance challenges we’ve faced as Meta’s apps, how the needs of users have become more complex over [...] Read More... The post Accelerating our Android apps with Baseline Profiles appeared first on Engineering at Meta.| Engineering at Meta
Following our keynote presentations at FSE 2025 and Eurostar 2025, we’re delving further into the development of Meta’s Automated Compliance Hardening (ACH) tool, an LLM-based tool for software testing that is automating aspects of compliance adherence at Meta, while accelerating developer and product velocity. By leveraging LLMs we’ve been able to overcome the barriers that [...] Read More... The post LLMs Are the Key to Mutation Testing and Better Compliance appeared first on Engineer...| Engineering at Meta
Imagine being able to use AI to create 3D virtual worlds using prompts as easily as you can generate images. The intersection of AI and VR was one of the biggest topics at Meta Connect this year. In his keynote, Mark Zuckerberg shared his vision of a future where anyone can create virtual worlds using [...] Read More... The post Meta 3D AssetGen: Generating 3D Worlds With AI appeared first on Engineering at Meta.| Engineering at Meta
Over the past 21 years, Meta has grown exponentially from a small social network connecting a few thousand people in a handful of universities in the U.S. into several apps and novel hardware products that serve over 3.4 billion people throughout the world. Our infrastructure has evolved significantly over the years, growing from a [...] Read More... The post Meta’s Infrastructure Evolution and the Advent of AI appeared first on Engineering at Meta.| Engineering at Meta
AI is everywhere and, as network engineers, we are right in the thick of it: building the network infrastructure for AI. This year, at our largest @Scale:Networking ever, engineers from Meta, ByteDance, Google, Microsoft, Oracle, AMD, Broadcom, Cisco, and NVIDIA came together to share our latest experiences in architecting, designing, operating, and debugging our AI [...] Read More... The post Networking at the Heart of AI — @Scale: Networking 2025 Recap appeared first on Engineering at M...| Engineering at Meta
Today, Meta, Vodafone, and Google released a white paper, “Video Streaming with the AV1 Video Codec in Mobile Devices,” detailing the benefits of the AV1 codec, an advanced video compression …| Engineering at Meta
OpenZL is a new open source data compression framework that offers lossless compression for structured data. OpenZL is designed to offer the performance of a format-specific compressor with the eas…| Engineering at Meta
Our hardware infrastructure comprises millions of machines, all of which generate logs that we need to process, store, and serve. The total size of these logs is several petabytes every hour. The o…| Engineering at Meta
We’re sharing how Meta is applying machine learning (ML) and diversity algorithms to improve notification quality and user experience. We’ve introduced a diversity-aware notification ranking frame…| Engineering at Meta
The Kotlin incremental compiler has been a true gem for developers chasing faster compilation since its introduction in build tools. Now, we’re excited to bring its benefits to Buck2 – Meta’s buil…| Engineering at Meta
What if you could control any device using only subtle hand movements? New research from Meta’s Reality Labs is pointing even more firmly toward wrist-worn devices using surface electromyography (s…| Engineering at Meta
Meta has developed an open-source AI tool to design concrete mixes that are stronger, more sustainable, and ready to build with faster—speeding up construction while reducing environmental impact. …| Engineering at Meta
We are proud to announce that Meta has officially joined the Kotlin Foundation as a gold member, marking a significant milestone in our ongoing commitment to Kotlin and the broader Android developm…| Engineering at Meta
Five years ago, we created the Facebook AI Research (FAIR) group to advance the state of the art of AI through open research for the benefit of all — it’s an effort to understand the nature o…| Engineering at Meta
Meta and Quansight have improved key libraries in the Python Ecosystem. There is plenty more to do and we invite the community to help with our efforts. We’ll look at two key efforts in Python’s p…| Engineering at Meta
We’re sharing details about Strobelight, Meta’s profiling orchestrator. Strobelight combines several technologies, many open source, into a single service that helps engineers at Meta improve effic…| Engineering at Meta
Meta has been on a years-long undertaking to translate our entire Android codebase from Java to Kotlin. Today, despite having one of the largest Android codebases in the world, we’re well pas…| Engineering at Meta
Andromeda is Meta’s proprietary machine learning (ML) system design for retrieval in ad recommendation focused on delivering a step-function improvement in value to our advertisers and people. Thi…| Engineering at Meta
People upload hundreds of millions of videos to Facebook every day. Making sure every video is delivered at the best quality — with the highest resolution and as little buffering as possible — mean…| Engineering at Meta
At Meta, we’re always looking for ways to enhance the productivity of our engineers and developers. But how exactly do you measure developer productivity? On this episode of the Meta Tech Podcast P…| Engineering at Meta
At Meta, React and React Native are more than just tools; they are integral to our product development and innovation. With over five thousand people at Meta building products and experiences with …| Engineering at Meta
We’re sharing how we’re enabling production and delivery of AV1 for Facebook Reels and Instagram Reels. We believe AV1 is the most viable codec for Meta for the coming years. It offers higher quali…| Engineering at Meta
Improved video compression is important for delivering digital video files more quickly and with higher quality, while using less bandwidth and storage. Everything from 4K movie streaming to smartp…| Engineering at Meta
In our constant quest to prioritize efficiency, Instagram’s engineers have developed a way to process new videos that reduces the cost to produce basic video encodings by 94 percent. With this meth…| Engineering at Meta
Earlier this year, a small team of engineers at Meta started working on an idea for a new app. It would have all the features people expect from a text-based conversations app, but with one very ke…| Engineering at Meta
Marking a major investment in Meta’s AI future, we are announcing two 24k GPU clusters. We are sharing details on the hardware, network, storage, design, performance, and software that help us extr…| Engineering at Meta
Training AI models at a large scale isn’t easy. Aside from the need for large amounts of computing power and resources, there is also considerable engineering complexity behind training very large …| Engineering at Meta
To comply with a new EU law, the Digital Markets Act (DMA), which comes into force on March 7th, we’ve made major changes to WhatsApp and Messenger to enable interoperability with third-party messa…| Engineering at Meta
WhatsApp has launched a new cryptographic security feature to automatically verify a secured connection based on key transparency. The feature requires no additional actions or steps from users an…| Engineering at Meta
We are beginning to upgrade people’s personal conversations on Messenger to use end-to-end encryption (E2EE) by default. Meta is publishing two technical white papers on end-to-end encryption: Our …| Engineering at Meta
To all the people and businesses around the world who depend on us, we are sorry for the inconvenience caused by today’s outage across our platforms. We’ve been working as hard as we can to restore…| Engineering at Meta
Now that our platforms are up and running as usual after yesterday’s outage, I thought it would be worth sharing a little more detail on what happened and why — and most importantly, how we’re lear…| Engineering at Meta
Code reviews are one of the most important parts of the software development process At Meta we’ve recognized the need to make code reviews as fast as possible without sacrificing quality We’re sha…| Engineering at Meta
We’re sharing lessons learned from shifting our Android development from Java to Kotlin. Kotlin is a popular language for Android development and offers some key advantages over Java. As of today,…| Engineering at Meta
At OCP Summit 2022, we’re announcing Grand Teton, our next-generation platform for AI at scale that we’ll contribute to the OCP community. We’re also sharing new innovations designed to support dat…| Engineering at Meta
