Systems Reliability Engineer

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 Department

Production Engineering is responsible for the world’s most reliable, observable, performant, and safe network ecosystem. Our customers rely on our products and systems to safely modify, troubleshoot, and release products without external impact.

Our external customers rely on us to provide seamless and predictable incident, traffic, policy management, resulting in the fastest and safest network services in the world.

We are accountable for the overall performance of internal and external facing services, guiding our product teams to optimal configurations and maximum efficiency. From the moment that a packet enters the Cloudflare ecosystem, we know exactly what its expected purpose and behaviour is and we are capable of determining and exposing anomalous behaviour.

The Cloudflare network makes it possible to solve challenges at massive scale and efficiency which would be impossible for almost any other organization.

In this role, you can expect to:

Design, deliver, and operate software that progresses Cloudflare's Observability competency

Solve scaling bottlenecks in critical services in our Observability pipeline

Work on highly distributed and scalable systems

Participate in the constant cycle of knowledge sharing and mentoring

Participate in the global on-call rotation for the services your team owns

Research and introduce cutting-edge technologies

Contribute to open-source

We are a small team, well-funded, growing and focused on building an extraordinary company. This is a systems reliability engineering role and is a superb opportunity to be part of a high performing team to help to support Cloudflare’s mission and help build a better internet.

You may be a good fit for our team if you have:

Proficiency in distributed Linux environments

Proficiency in designing high-scale distributed systems

Proficiency in high-level programming languages (e.g., Golang, Rust, Python)

Proficiency in Prometheus, Alertmanager, Thanos, OpenTelemetry, Sentry, Grafana, Clickhouse

Proficiency in networking protocols Layer 2-7 of the OSI model

Experience working in a fast, high-growth environment

Experience working in a 24/7/365 service environment

Exquisite written and verbal communication skills

Familiarity with Internetworking and BGP

Strong bias for action

Bonus points if you have:

Experience with high-bandwidth transit Internetworking and routing

Passion for code simplicity and performance