Security Engineer

Who you are

• 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
• 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

What the job involves

• 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
• 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
• 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
• 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
• Occasional work outside standard hours to support sessions across EMEA and APAC time zones

The application process

• 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

Benefits

• Competitive pay: We offer a competitive total rewards package, where every employee is an owner of our stock.
• Take-what-you-need vacation: We encourage employees to find a comfortable work-life balance by taking as many days off as they need while still being able to perform their jobs satisfactorily. (We really mean it!)
• Paid maternity & paternity leave: Our global parental leave policy allows up to sixteen paid weeks of bonding leave time for all qualifying new parents.
• Employee benefits: We offer a comprehensive benefits package including healthcare, life insurance, short- and long-term disability, pension plans in accordance with the market practice in our locations.
• Commuter program: We are flexible about where we work and value connecting at the office. Our commuter benefits program is in place to support team members' commute to work via public transportation without the extra cost burden.
• Wellbeing: Global offerings that provide mental health, childcare and family forming support to our employees across our offices.