Security Engineer, Applied Research & Labs

About Us

Available Locations: Austin, TX

What You'll Do

Cloudflare is seeking a Security Engineer to design and build agentic security tooling for Cloudflare Security, and to release that work as open-source reference implementations, interactive labs, and technical workshops for customers and partners.

This role sits in the Applied Research & Labs function within the Office of the CSO. You will work embedded with Cloudflare's security teams, build on Cloudflare's Developer Platform, and represent the team's security & engineering work externally.

Security Tooling & Reference Implementations

• Design and build agentic security workflows and tooling for Cloudflare Security, including multi-agent orchestration, tool integration, and evaluation harnesses
• Release internal harnesses, skill definitions, and orchestration workflows as documented open-source reference implementations
• Implement on Cloudflare Workers, Durable Objects, Workflows, Workers AI, AI Gateway, and the Agents SDK

Labs & Workshops

• Define the technical scope and sequencing of each lab, including the failure modes participants will hit and the scaffolding they need
• Build and operate the lab infrastructure: per-participant isolation, automated provisioning, state reset, and teardown
• Run hands-on workshops where customers and partners build and deploy the tooling themselves
• Document and package workshop formats so other Cloudflare engineers can deliver them

External Engagement

• Present Cloudflare's agentic security architecture through customer briefings and conference talks
• Author technical deep dives and architecture write-ups that establish Cloudflare Security as a recognized voice in the security community
• Partner with Product and Engineering to align external technical content with the roadmap

Required Qualifications

• 4+ years in software engineering, shipping and operating production systems
• Demonstrated experience building interactive labs, hands-on learning platforms, or developer training environments, including the infrastructure behind them
• Strong design judgment for technical learning experiences, including scope, sequencing, and knowing what to leave out
• Proficiency in TypeScript, Python, or a comparable language, with production experience in distributed or event-driven systems
• Hands-on experience building LLM-based systems, including agent orchestration, tool use, context engineering, and evaluation
• Experience with Cloudflare Workers, Durable Objects, Workflows, Workers AI, AI Gateway, and Vectorize, or an equivalent serverless stack
• Working knowledge of application and infrastructure security, including common vulnerability classes and secure development practices
• Published technical writing, conference talks, or open-source contributions

Bonus Points

• Hands-on security background in any domain
• Experience with the Cloudflare Agents SDK
• Experience with developer education, technical certification programs, or developer relations
• Maintainer or significant contributor to an open-source security or developer tooling project
• Experience speaking at security or developer conferences

Location & Travel

• Based in Austin, TX
• 15-25% travel for customer workshops, conferences, and other Cloudflare offices
• Occasional work outside standard hours to support sessions across EMEA and APAC time zones

What Makes Cloudflare Special?

Cloudflare is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer.