Software Engineer - WAN Connector

at  Cloudflare

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.
We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new skills, and we are ready to help you do that. We cannot complete our mission without building a diverse and inclusive team. We hire the best people based on an evaluation of their potential and support them throughout their time at Cloudflare. Come join us!

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. Our team works with Rust, Go, Linux, and cloud technologies to simultaneously build complex on-prem clients and distributed cloud backends. We are looking for engineers who are just as interested in building their own Linux-based OS as they are in cloud architecture, and just as interested in Rust as they are in Go.

DESIRED SKILLS, KNOWLEDGE, AND EXPERIENCE

• Rust and/or Go programming
• Broad networking expertise across L2-L7 networking flows and protocols
• Experience designing and integrating RESTful APIs and backend systems
• Experience building on top of Linux kernel networking primitives – netfilter, nftables, eBPF, tc, network namespaces, etc
• Experience building and shipping highly distributed systems with best SRE practices
• Excellent debugging and optimization skills
• Able to work across teams and level common, sustainable solutions
• Focus on clarity in written and verbal communication

We’re looking for curious and empathetic engineers who are excited to join us in changing the way networking is done. Some of the things our team works on include:

• A lightweight linux distro with custom networking software written in Rust, deployed via physical devices and virtual machines
• A distributed cloud backend using Go, Kubernetes, and PostgreSQL
• Debugging packet flows and IPsec tunnels that span the globally distributed Cloudflare network and globally distributed customer networks, often involving debugging of Linux kernel networking primitives – netfilter, nftables, eBPF, tc, network namespaces, etc
• Release/Deployment systems for applications across Cloudflare and on-prem locations
• Partnering with some of the best engineers and product managers to solve big problems