Sharing our Engineering Career Framework with the world
Looking for our latest Engineering Career Framework? We made some updates in 2023. Learn more about the newest version. ~ ~ ~ At Dropbox, we strive to be a great place for all engineers to grow and be recognized for that growth. Our Engineering Career Framework helps keep us accountable there and is viewable by anyone within the company. Today, we are also making it viewable by anyone outside the
How image search works at Dropbox
Photos are among the most common types of files in Dropbox, but searching for them by filename is even less productive than it is for text-based files. When you're looking for that photo from a picnic a few years ago, you surely don't remember that the filename set by your camera was 2017-07-04 12.37.54.jpg. Instead, you look at individual photos, or thumbnails of them, and try to identify object
Testing sync at Dropbox
…and how we rewrote the heart of sync with confidence. Executing a full rewrite of the Dropbox sync engine was pretty daunting. (Read more about our goals and how we made the decision in our previous post here.) Doing so meant taking the engine that powers Dropbox on hundreds of millions of user’s machines and swapping it out mid-flight. To pull this off, we knew we would need a serious investment
Rewriting the heart of our sync engine
Over the past four years, we've been working hard on rebuilding our desktop client's sync engine from scratch. The sync engine is the magic behind the Dropbox folder on your desktop computer, and it's one of the oldest and most important pieces of code at Dropbox. We're proud to announce today that we've shipped this new sync engine (codenamed "Nucleus") to all Dropbox users. Rewriting the sync en
Continuous integration and deployment with Bazel
Dropbox server-side software lives in a large monorepo. One lesson we’ve learned scaling the monorepo is to minimize the number of global operations that operate on the repository as a whole. Years ago, it was reasonable to run our entire test corpus on every commit to the repository. This scheme became untenable as we added more tests. One obvious inefficiency is the pointless and wasteful execut
Dropbox traffic infrastructure: Edge network | Dropbox Tech Blog
In this post we will describe the Edge network part of Dropbox traffic infrastructure. This is an extended transcript of our NginxConf 2018 presentation. Around the same time last year we described low-level aspects of our infra in the Optimizing web servers for high throughput and low latency post. This time we’ll cover higher-level things like our points of presence around the world, GSLB, RUM D
Architecture of Nautilus, the new Dropbox search engine | Dropbox Tech Blog
Architecture of Nautilus, the new Dropbox search engine Over the last few months, the Search Infrastructure engineering team at Dropbox has been busy releasing a new full-text search engine called Nautilus, as a replacement for our previous search engine. Search presents a unique challenge when it comes to Dropbox due to our massive scale—with hundreds of billions of pieces of content—and also due
Optimizing web servers for high throughput and low latency
This is an expanded version of my talk at NginxConf 2017 on September 6, 2017. As an SRE on the Dropbox Traffic Team, I’m responsible for our Edge network: its reliability, performance, and efficiency. The Dropbox edge network is an nginx-based proxy tier designed to handle both latency-sensitive metadata transactions and high-throughput data transfers. In a system that is handling tens of gigabit
Evolution of Dropbox’s Edge Network | Dropbox Tech Blog
Update (November 14, 2017): Miami, Sydney, Paris, Milan and Madrid have been added to the Dropbox Edge Network. Since launching Magic Pocket last year, we’ve been storing and serving more than 90 percent of our users’ data on our own custom-built infrastructure, which has helped us to be more efficient and improved performance for our users globally. But with about 75 percent of our users located
Deploying Brotli for static content
Most representations of data contain a lot of redundancy, which provides an opportunity for greater communication efficiency by compressing the content. Compression is either built-in into the data format — like in the case of images, fonts, and videos — or provided by the transportation medium, e.g. the HTTP protocol has the Accept-Encoding / Content-Encoding header pair that allows clients and s
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Machine intelligence at Dropbox: An update from our DBXi team