Cloudflare - Systems Reliability Engineer
Requirements
• Experience managing containerised workloads at scale using Kubernetes, Docker, or similar orchestration platforms. • Familiarity with CI/CD pipelines and automated testing strategies for infrastructure. • Contributions to open-source systems software projects or active participation in the broader systems engineering community. • Experience with any of our existing tooling, such as Kafka and Temporal • Good experience of harnessing AI to drive robust solutions • What Makes Cloudflare Special? • We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet. • Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost. • Project Galileo • Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states. • Athenian Project • 1.1.1.1 • Sound like something you’d like to be a part of? We’d love to hear from you! • Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process. • This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.
Responsibilities
• Cloudflare is a system spanning the globe, on a mission to make the internet better, safer, and more powerful everyday. With this goal in mind, our product teams are responsible for deployed thousands of deployments at an ever increasing rate. • As an engineer on one of our Core platform teams, you'll be building the tools to help engineers deploy and operate the services that make Cloudflare work. Our mission is to provide a reliable, yet flexible, platform to help product teams release new software efficiently and safely. You’ll be building the private cloud that Cloudflare developers leverage to build Cloudflare itself. Core platforms we operate at Cloudflare include: • Artificial Intelligence & LLMs • Architect, deploy, and maintain robust distributed systems, focusing on high availability, low latency, and horizontal scalability. • Optimise Performance: Analyse system bottlenecks, optimise kernel and network stacks, and fine-tune resource utilisation across global server fleets. • Drive Automation: Build and maintain internal tools and automation frameworks to streamline infrastructure deployment, configuration management, and monitoring. • Ensure Reliability: Participate in architecture reviews, capacity planning, and proactive system health monitoring to guarantee maximum uptime and resilience. • Collaborate Cross-Functionally: Partner closely with Security, Network Engineering, and Product teams to integrate infrastructure solutions smoothly across the entire stack. • Desirable Skills, Knowledge, and Experience • Demonstrable professional experience building and managing large-scale distributed systems or Linux production environments. • Proficiency in at least one systems programming or scripting language (e.g., Go, Rust, C/C++, Python) with a track record of writing clean, maintainable code. • Deep understanding of Linux/Unix operating system internals (e.g., storage subsystems, memory management) and core networking protocols (TCP/IP, DNS, BGP). • Experience with configuration management and infrastructure-as-code tools (e.g., Ansible, Terraform, SaltStack). • Strong analytical and troubleshooting skills, with a methodical approach to diagnosing complex system-level failures.
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