Principal Systems Engineer, DevTools

We are on a mission to help build a better Internet. Today, we run 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.

The Developer Tooling team builds internal tools and platforms that improve the velocity and developer experience of Cloudflare's engineering teams. As a Principal Engineer, you'll build and operate the AI tools thousands of engineers use every day. It's a hands-on role with both engineering and operational responsibility.

Responsibilities:

• Ship features for our AI coding tools
• Build and improve AI and other developer-observability tools
• Own our internal MCP servers (GitLab, Confluence, Jira, Backstage etc.)
• Build AI agents
• Maintain our context engineering: shared configs, prompt libraries, and agent instructions
• Wire AI tooling into CI/CD pipelines
• Handle security and access controls for AI tools
• Track adoption and usage across the org
• Triage and respond to support in our tool channels
• Own projects end to end - from roadmap and prioritization through delivery and operation
• Mentor teammates and raise the bar through code review and design feedback
• Help respond to and prevent incidents on the tools engineers depend on

Requirements:

• Strong coding ability in TypeScript, Go, Rust and Bash
• Excellent debugging skills
• Source control experience including branching, merging, and rebasing
• Experience deploying and operating on Kubernetes or a similar platform
• Comfort breaking down complex problems, weighing trade-offs, and driving them to done
• A habit of mentoring and raising the bar for the people around you
• Experience with, or strong interest in, building tools that improve DevEx

Nice to have:

• Experience building LLM-based tools in production (agents, evals, cost and latency tuning)
• Experience with CI/CD systems and build tooling
• Experience building on Cloudflare's platform (Workers, AI Gateway)
• Operating Kubernetes on-premise at scale (SRE, systems design, or architecture)
• Building platforms across multiple zones and regions
• Prior work on a platform engineering or developer-productivity team
• Open-source contributions to developer tooling or AI projects

Compensation: Estimated annual salary of $230,000 - $281,000 (depending on location)

Benefits:

• Medical/Rx Insurance
• Dental Insurance
• Vision Insurance
• Flexible Spending Accounts
• Commuter Spending Accounts
• Fertility & Family Forming Benefits
• On-demand mental health support and Employee Assistance Program
• Global Travel Medical Insurance
• Short and Long Term Disability Insurance
• Life & Accident Insurance
• 401(k) Retirement Savings Plan
• Employee Stock Participation Plan
• Flexible paid time off covering vacation and sick leave
• Leave programs, including parental, pregnancy health, medical, and bereavement leave