Senior Product Security Engineer

Available Locations:Austin TX

About the role

As a Senior Product Security Engineer you will lead security assessments and vulnerability operations for Cloudflares core software this role you will analyze system architecture threat model new features and ensure that product-related security findings are accurately triaged routed to the correct engineering owners and mitigated within our SLAs.

On any given day you might conduct a deep-dive security review on a new feature design triage a complex bug bounty submission or work directly with engineering teams to resolve vulnerabilities from different sources like bug bounties SAST fuzzing and penetration tests. You will also work autonomously to identify areas where our manual processes slow down. You will write code and integrate AI/LLM solutions to automate initial triage and data enrichment building tools that help the team handle security short your work will sit at the intersection of Product Security Vulnerability Operations and internal AI Tooling. Ideally you have experience in conducting academic/vulnerability research with a focus on systems security.

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 Cloudflares 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

Equity

This role is eligible to participate in Cloudflares equity plan.

Benefits

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.

What Makes Cloudflare Special

Were not just a highly ambitious large-scale technology company. Were 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 weve equipped more than 2400 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 Cloudflares 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 weve 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. Heres the deal - we dont 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 youd like to be a part of Wed love to hear from you!

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.

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 persons 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 or via mail at 101 Townsend St. San Francisco CA 94107.