Software Engineer, Distributed Systems - Europe

Cloudflare is a system spanning the globe, on a mission to make the Internet better, safer, and more powerful every day. As a Distributed Systems Engineer at Cloudflare, you’ll work on the code that runs close to the end user, runs at a massive scale, and is deployed to 250+ cities around the world. Examples of software systems at Cloudflare include: A TLS/HTTP proxy to make the connection from eyeball to edge as fast and secure as possible Filtering malicious traffic and handling good traffic according to customer configuration Content optimization that takes content served from customer sites and makes it more performant A platform that runs “serverless” Workers and provides a key value store A reverse-proxy system that caches customer website content according to customer configuration Optimization of connections from Cloudflare to our customers' origin servers to reduce their load and increase performance Our Authoritative DNS server and our public resolver 1.1.1.1. One of the biggest data pipelines in the world, operating at well over 25M events per second We operate some of the fastest, and most widely distributed services on the Internet. Your work will focus on building robust, secure, and high performance distributed systems. We are a small engineering team operating at a massive scale, so what you do will have a huge impact. Examples of desirable skills, knowledge and experience Understanding at the protocol level, including the differences between what the specs say, and what actually happens on the Internet Confidence to work in multiple programming languages - could include C, Go, Rust, Python, Lua and even PHP Experience (and love) for debugging to ensure the system works in all cases Strong systems level programming skills Excited by the idea of optimizing complex solutions to general problems Experience with a continuous integration workflow and using source control (we use git) Good Unix knowledge, patches to Operating Systems a huge plus for some roles Understanding of security issues and responsibilities Experience with monitoring, alerting and debugging high volume production systems Fluent in analyses of data sets such as logs Designing and building APIs Great oral and written communications skills Desire to learn and improve Willing and eager to share knowledge, and mentor

At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.