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About Us 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. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Location: Austin, Champaign About The Team: Cloudflare is redefining the way networks are run at scale. Our Network Services product suite puts the connectivity, scale, and performance of Cloudflare’s global network in front of customers’ network infrastructure and private networks, providing a single pane of glass for network connectivity, visibility, and operating network functions like BGP, WAN optimization, and more. We are a team of engineers and product managers who obsess over quickly building products that solve real customer problems using innovative technologies and techniques which leverage Cloudflare’s unique architecture and global network footprint. About the role We are hiring engineers of all experience levels on our teams. Some of the things our teams work on include: • An anycast BGP implementation that sustains sessions that are moved across servers and regions • Flow and log collection, correlation, and analytics systems to provide customers with unparalleled visibility into their own networks • A Linux kernel-based networking dataplane which ingests and forwards traffic from some of the largest networks in the world • Control plane systems which allow customers to simply express complex network configurations As a Software Engineer on our team, you will work across a wide range of technologies and systems to deliver new features, improve performance, and increase the scalability of our Network Services products. You’ll build, deploy, and operate our team’s systems on top of one of the largest edge networks in the world. You’ll partner with some of the best engineers and product managers to solve big problems that have a meaningful impact in the lives of our customers and users. We’re looking for curious, empathetic engineers who are excited to join us in changing the way networking is done! Examples of desirable skills, knowledge, and experience • Experience building and shipping large-scale, reliable, highly distributed systems • Systems-level programming experience, especially in Go and Rust • Expertise in L3 and L4 networking protocols • Experience building on top of Linux kernel networking primitives – netfilter, nftables, eBPF, tc, network namespaces, etc <

Senior Software Engineer, Network On-Ramps

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