Software Engineer (Security)

Join Cloudflare Security Automation Engineering Team, where we are pivoting from traditional "Security as Code" to "Security as Agents." Our mission is to build a self-healing, autonomous defense layer. We focus on:

● Agentic AI Orchestration: Building autonomous agents to manage end-to-end security workflows.
● Autonomous Security Assurance: Leveraging LLMs for automated vendor reviews and M&A due diligence.
● Active Defense: Continuous threat automation via intelligent helper agents.
● Intelligence for MTTR: Using Agentic AI to diagnose, triage, and remediate incidents in real-time on end points as well as overall Enterprise
● Compliance & Audit Readiness: Automating complex assessment flows and evidence gathering.

As a Senior Security AI Engineer, you will be the technical architect for our Agentic AI roadmap. Your mission is to move beyond simple automation scripts and build a fleet of "AI
Team Members"—intelligent helper agents that execute complex security algorithms, process flows, and assessment logic. You will leverage Cloudflare’s Workers platform to deploy agentic solutions that close critical security gaps and replace traditional third-party tooling with high- performance, proprietary AI workflows.

● Agent Architecture: Design and deploy multi-agent systems that follow complex security algorithms and assessment flows to automate manual SOC and Assurance tasks.
● Skill Engineering: Standardize agent capabilities by creating and maintaining skills.md files and specialized Markdown documentation that define agentic personas and execution boundaries.
● Workflow Training: Train and fine-tune LLMs to function as "helper agents" capable of executing autonomous AI workflows as integral members of the Security Engineering team.
● Infrastructure as Agents: Utilize Cloudflare Workers, Vectorize, and AI Gateway to build serverless, low-latency agentic architectures for real-time traffic analysis and remediation.
● Autonomous Assessment: Build and scale the engine for autonomous vendor security reviews and M&A assessments, transforming qualitative data into quantitative risk insights.
● Mentorship: Lead the transition for Developer and Automation Engineers into the AI space, fostering a culture of Agentic Security.

● Experience: 4+ years in Information Security or Software Engineering, with at least 1+ years focused on AI Engineering, Agentic AI, or Advanced Automation using Opencode
● AI Expertise: Deep understanding of LLM orchestration, prompt engineering, and building agentic loops (e.g., LangChain, AutoGen, or custom frameworks).
● Agent Development: Proven ability to create agents from structured definitions (skills.md) and automate tasks that follow strict process/algorithmic flows.
● Cloudflare Ecosystem: Expert knowledge of Cloudflare Workers, KV, Durable Objects, and R2. Experience with Cloudflare AI tools is a significant plus.
● Languages: Mastery of Windsurf,Opencode or Rust.
● Security Domain: Strong grasp of Cyber Security fundamentals, including SIEM/SOAR logic, UEBA, and risk assessment frameworks.
● Technical Writing: Ability to document complex AI logic and "agent skills" in clear, executable Markdown files.

● Experience building custom Agentic AI solutions that have replaced enterprise-grade 3rd party security software.
● Background in M&A Security Due Diligence or Vendor Risk Management automation.
● Prior experience building edge-based security products or AI-driven log-push integrations.
● Certifications: CISSP or specialized AI/Machine Learning certifications.

We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.

Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

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.

Cloudflare provides reasonable accommodations to qualified individuals with disabilities.  Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.  If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.