Senior Product Security Engineer
Lead security assessments, threat modeling, and vulnerability operations for Cloudflare's core products. Drive AI-powered automation for triage and workflows while mentoring teams in large-scale distributed environments.
About the job
Responsibilities
- Autonomously Drive AI Security Innovation: Proactively identify gaps in our current capabilities and independently architect, build, and deploy AI-driven solutions to automate code analysis, optimize triage, and scale Product Security workflows.
- Security Architecture & Threat Modeling: Lead deep-dive security reviews and complex threat modeling sessions across distributed systems, embedding strict security requirements into product designs before development begins.
- Product-Focused Vulnerability Management: Own the lifecycle of product security findings. Ensure vulnerabilities are accurately triaged, mapped to the correct engineering owner, and mitigated in alignment with established SLAs.
- Bug Bounty Leadership: Oversee the technical triage and validation of Cloudflare’s external Bug Bounty program, prioritizing submissions based on real-world exploitability and business risk.
- Pentest Strategy & Support: Shape the scope of internal and external penetration testing engagements, serving as the technical liaison to ensure findings are deeply understood and remediated by development teams.
- Strategic Influence & Mentorship: Act as a force-multiplier for security across Cloudflare; mentor junior engineers, cultivate security champions within engineering organizations, and establish modern, paved-road developer guardrails.
Desirable Skills, Knowledge, and Experience
- Senior-Level Product/AppSec Expertise: Extensive, battle-tested experience in Product or Application Security within large-scale distributed cloud environments or SaaS platforms.
- Practical AI & Automation Engineering: Demonstrated ability to build production-grade automation scripts and tools. Must possess hands-on engineering experience leveraging AI/LLMs to solve operational or technical challenges.
- Advanced Threat Modeling & Risk Analysis: Mastery of threat modeling methodologies (e.g., STRIDE) and an analytical mindset capable of translating complex theoretical risks into prioritized, actionable business context.
- Vulnerability Lifecycle Ownership: Proven track record of managing, routing, and driving the remediation of vulnerabilities across multi-stakeholder engineering organizations while strictly enforcing SLAs.
- High Influence & Communication: Superb cross-functional leadership skills; the ability to confidently influence senior engineering leaders, resolve ownership ambiguity, and champion security initiatives without explicit authority.
Bonus Points
- Offensive Mastery: Familiarity with offensive security tooling and modern exploitation techniques used during professional penetration testing.
- Program Management Experience: Experience scaling crowdsourced security programs (e.g., HackerOne, Bugcrowd) or optimizing agile project management workflows within JIRA.
- Experience in integrating hardware security features into production code bases.
Compensation & Benefits
This role is eligible to participate in Cloudflare’s equity plan. Cloudflare offers a complete package of benefits and programs to support you and your family, including medical, dental, and vision insurance, a 401(k) plan with company match, flexible paid time off, and fertility & family-forming benefits.
Skills
Application Security, Threat Modeling, Vulnerability Management, Bug Bounty, Penetration Testing, AI, LLMs, Automation, Stride, Offensive Security, Jira, Hardware Security
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