Security Engineer, Applied Research & Labs
Hybrid · Austin, TX · 4+ years experience · Hybrid · Posted Oct 13, 2026
At a glance
- Experience
- 4+ years experience
- Workplace
- Hybrid
- Location
- Hybrid · Austin, TX
About Cloudflare
- At Cloudflare, we are on a mission to help build a better Internet. Today the company runs 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. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.
- At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.
- Available Locations: Austin, TX
About the role
- The Security Engineer in Applied Research & Labs will design and build agentic security tooling and release it as open-source reference implementations.
- This role involves creating interactive labs and technical workshops for customers and partners while working embedded within Cloudflare's security teams.
Responsibilities
- Design and build agentic security workflows and tooling, including multi-agent orchestration and evaluation harnesses.
- Release internal harnesses, skill definitions, and orchestration workflows as documented open-source reference implementations.
- Implement solutions on Cloudflare Workers, Durable Objects, Workflows, Workers AI, AI Gateway, and the Agents SDK.
- Define the technical scope and sequencing of labs, including failure modes and necessary scaffolding.
- Build and operate lab infrastructure, including per-participant isolation, automated provisioning, and state management.
- Run hands-on workshops for customers and partners.
- Document and package workshop formats for delivery by other Cloudflare engineers.
- Present agentic security architecture through customer briefings and conference talks.
- Author technical deep dives and architecture write-ups.
- Partner with Product and Engineering to align external technical content with the roadmap.
Requirements
- 4+ years in software engineering, shipping and operating production systems.
- Demonstrated experience building interactive labs, hands-on learning platforms, or developer training environments.
- Strong design judgment for technical learning experiences.
- 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.
Preferred qualifications
- 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
Workplace
- Hybrid role based in Austin, TX.
- 15-25% travel required for customer workshops, conferences, and other Cloudflare offices.
- Occasional work outside standard hours to support EMEA and APAC time zones.
Skills
- TypeScript
- Python
- Cloudflare Workers
- Durable Objects
- Workers AI
- AI Gateway
- Vectorize
- Agents SDK
- LLM
- Event-driven Systems
