Senior Software Engineer - Network Connectivity

Cloudflare•San Francisco, CA

23h

About The Position

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. Available Locations: London, UK or Lisbon, Portugal Role Summary The Egress team was formed to own a very important aspect of Cloudflare's network-as-a-service: egress connectivity for our vast portfolio of products. As a member of the Egress team, you will be a key technical contributor to a cutting edge network software infrastructure used by a growing number of Cloudflare products to connect to any destination from Cloudflare's network. Among the products powered by this technology is WARP, our Zero Trust platform, and Cloudflare's egress proxy for the iCloud Private Relay product. You will work closely with various Engineering teams to translate their requirements into new capabilities on the platform. Likewise you will partner with Network Engineering and SRE to ensure that the technology makes the best use of Cloudflare's world-class edge network. You will participate in all stages of the software development lifecycle, from designing and documenting systems, to writing code and automated tests, to planning, managing, and monitoring production software deployments. You will work with a wide range of technologies and programming languages, including Rust, Go, Linux networking, ClickHouse, PostgreSQL, Grafana, Kubernetes, and more. Engineering teams at Cloudflare operate a Run What You Build model, including ours. We are responsible for the health of our system and participate in our team's on-call rotation as part of operational responsibilities. Because you’ll be solving problems of massive scale and significance, you are a growth-oriented individual who enjoys being outside of your comfort zone. You are comfortable in a fast-paced but sensible work environment. You value curiosity and empathy and lead with these values.

Requirements

Must-Have Skills Programming experience in Go or Rust and a desire to improve your skills in both.
A solid grasp of networking protocols in Layers 3 and 4 of the OSI Model.
Knowledge of HTTP, TLS, and CDN networks.
Experience in implementing secure and highly-available distributed systems.
Strong ability to debug issues in complex systems.
Strong collaboration and communication skills.
Experience/interest in HTTP networking and VPN technologies.
Experience/interest in network performance monitoring and tuning.
Willingness to adopt and integrate AI tools and systems into your engineering workflow.

Nice To Haves

Knowledge of TCP/IP and Internet routing.
Professional systems-level programming experience in Rust.
Experience building tools and APIs.
Experience with monitoring, alerting, and debugging large-scale distributed systems
Experience participating in an on-call rotation.
Experience using AI-assisted development tools (e.g., code completion, codebase analysis, log/data exploration) in a professional setting.

Responsibilities

Make daily progress on assigned engineering tasks, such as designing systems, writing specs, writing and pushing code via git, writing release plans for complex changes, rolling out production releases and working with other teams to coordinate system actions
Participate in daily and ad-hoc team meetings to share progress and collaborate
Participate in the team’s on-call schedule to ensure uptime of our production systems
Investigating customer issues that are escalated to the Egress team for triage and resolution
Responding to questions from other teams in the Egress team’s internal, public chat room
Using AI-powered tools and systems as part of your daily workflow to analyze and extend codebases, introspect production systems and datasets, and accelerate problem-solving

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