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Cloudflare's Developer Tooling team builds internal platforms and tools that improve engineering velocity and developer experience across the company. The team owns developer productivity (code commit to production), developer insights, CI/CD infrastructure, AI-assisted development, and internal dogfooding of Cloudflare's own platform.
As a Principal Systems Engineer, you'll be a hands-on technical leader building and operating AI tools used by thousands of engineers daily. This is a high-impact role with significant ownership from day one. You'll work alongside the DevTools Engineering Manager, providing technical mentorship, driving end-to-end project ownership, and deeply caring about the developer experience.
Key responsibilities include: shipping features for AI coding tools; building and improving AI and developer-observability tools; owning internal MCP servers (GitLab, Confluence, Jira, Backstage); building AI agents; maintaining context engineering (shared configs, prompt libraries, agent instructions); integrating AI tooling into CI/CD pipelines; handling security and access controls; tracking adoption and usage; triaging support requests; owning projects end-to-end from roadmap through operation; mentoring teammates; and responding to incidents.
Required skills: strong coding ability in TypeScript, Go, Rust, and Bash; excellent debugging; source control expertise; Kubernetes or similar platform deployment and operations; ability to break down complex problems and drive them to completion; mentoring experience.
Bonus experience includes: building LLM-based tools in production (agents, evals, cost/latency tuning); CI/CD and build tooling; Cloudflare platform experience (Workers, AI Gateway); large-scale on-premise Kubernetes operations; multi-zone/region platform building; platform engineering or developer-productivity team background; open-source contributions to developer tooling or AI projects.
Cloudflare's mission is to help build a better Internet. The company operates one of the world's largest networks powering millions of websites and properties for customers from individual bloggers to Fortune 500 companies. The culture emphasizes iteration, AI-native problem solving, curiosity over bureaucracy, and shipping fast to improve continuously.
