Senior Systems Engineer - Traffic Management

Cloudflare•San Francisco, CA

55d

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. 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! Available Locations: London, UK or Lisbon, Portugal Role Summary The Traffic Management is responsible for the systems that dynamically route traffic flows into, through, and from Cloudflare's global network. We don't just manage one company's traffic; they manage traffic for numerous products and millions of customers, from individual websites to major enterprises. This team is at the heart of Cloudflare's mission to make the internet faster, safer, and more reliable.

Requirements

Minimum of 6 years of engineering experience with networking and/or distributed systems.
Systems-level programming experience in Go, Python, Rust, C, or C++.
Strong knowledge 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 across teams and functions.
Experience participating in an on-call rotation.

Nice To Haves

Experience building or developing capabilities in the domain of traffic engineering including automated load balancing and traffic prioritization.
Knowledge of statistical-analysis techniques and control theory.
Knowledge of TCP/IP and Internet routing.
Experience building tools and APIs.

Responsibilities

As a member of the team you will build and extend various traffic management and supporting systems.
You will work closely with Network Engineering, Product Engineering, Network Strategy, and other teams to collaborate on ambitious initiatives to make the best use of Cloudflare’s global 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 Go, Python, Rust, eBPF, ClickHouse, Salt, PostgreSQL, Prometheus, Kubernetes, and more.
Our team at Cloudflare operates under a "Run What You Build" model. This means we are responsible for the health of our systems and actively participate in our team's on-call rotation as part of our operational duties.
Because you’ll be solving problems of massive scale and significance, and shaping the future of reliability and performance on the Internet, 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.

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