Senior Systems Engineer, Cloudflare Tunnel

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 Intern...

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 ...

Job Title: Senior Systems Engineer, Cloudflare Tunnel

Lead the architecture and implementation of complex software systems that comprise Cloudflare Tunnel, including the cross-platform, open-source client and high-performance edge services.
Participate in all stages of the software development lifecycle, from designing and documenting systems to writing code, automated tests, and monitoring production deployments.
Strategically influence and collaborate with cross-functional stakeholders, including security, network engineering, SRE, and product management, to design and scale technical solutions.
Review work from your peers throughout all stages of the development lifecycle to ensure high-quality, maintainable code.
Foster a culture of technical excellence through mentorship, proactive code reviews, and establishing engineering standards across the team to ensure high-quality, maintainable code.
Debug issues in complex systems and contribute to the maintenance and improvement of operational health.
Drive the long-term technical roadmap and identify opportunities for system-wide improvements, ensuring our architecture remains resilient as we scale.
Work with a wide range of technologies and programming languages, including Go, Rust, and Typescript, as well as various databases (SQL and No-SQL), Docker, and Kubernetes.

5+ years of experience in backend software development with a focus on building  secure and highly available distributed systems.
Strong programming skills in Go, Rust, C++, or a similar systems-level language.
Knowledge of modern Unix/Linux development and runtime environments.
Grasp of networking protocols in Layers 3-7 of the OSI Model and experience with network programming.
Familiarity with microservices and APIs, including RESTful design.
Basic understanding of software security and encryption principles.
Ability to debug and troubleshoot issues in complex distributed systems.
Experience with monitoring and logging tools like Prometheus and Grafana.
Experience with containerization and orchestration technologies, such as Docker and Kubernetes.
Strong interpersonal and communication skills, demonstrating empathy, teamwork and a sense of ownership.