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Cloudflare is seeking a Senior Systems Engineer to design, build, and manage infrastructure tooling that enables engineers to deploy and operate services reliably and efficiently across the company's global network. This role combines software engineering with operational responsibilities, focusing on developer productivity and platform reliability.
Key responsibilities include:
- Design and build scalable, resilient systems that support company growth
- Develop developer productivity tooling and improve development systems and practices
- Harden the platform against security threats and resource contention issues
- Optimize resource management (CPU, bandwidth, storage) and efficiency
- Collaborate with application teams to help them architect systems effectively
- Drive initiatives that improve engineer productivity and satisfaction
- Respond to and prevent incidents impacting core platforms
You will work on infrastructure that powers millions of websites and Internet properties, from individual bloggers to Fortune 500 companies. The role requires both technical depth and the ability to partner with cross-functional teams to solve complex, large-scale problems.
Cloudflare's mission is to help build a better Internet. The company operates one of the world's largest networks and is known for its innovative culture, commitment to free expression (Project Galileo), and public-good initiatives like the Athenian Project and 1.1.1.1 DNS resolver.
Requirements:
- Demonstrable professional experience building and managing large-scale distributed systems or Linux production environments
- Proficiency in at least one systems programming or scripting language (Go, Rust, C/C++, Python) with a track record of writing clean, maintainable code
- Experience managing containerized workloads at scale using Kubernetes, Docker, or similar orchestration platforms
- Experience with CI/CD pipelines and automated testing strategies for infrastructure
- Source control experience including branching, merging, and rebasing
- Strong analytical and troubleshooting skills with a methodical approach to diagnosing complex system-level failures
Bonus qualifications:
- Experience with configuration management and infrastructure-as-code tools (Ansible, Terraform, SaltStack)
- Deep understanding of Linux/Unix operating system internals (storage subsystems, memory management) and core networking protocols (TCP/IP, DNS)
- Contributions to open-source systems software projects or active participation in the systems engineering community
