Top Cybersecurity Jobs in San Francisco, CA

Research web application vulnerabilities and exploitation techniques, develop and maintain Cloudflare WAF managed rules, investigate false positives and missed attacks, test defenses against bypasses, automate exploit reproduction and validation, and use SQL and production telemetry to measure detection quality. The role collaborates with engineering, product, and customer-facing teams while documenting security research and mitigation decisions.

Build and operate secure, resilient distributed systems for secrets and key management across Cloudflare’s global network. Re-architect internal PKI and machine or workload identity systems, participate in on-call incident response, support internal developers, and advise engineering teams on secure system design. The role requires software development, distributed systems expertise, Linux/UNIX administration, and hands-on security implementation experience.

Design, build, run, and scale distributed tools and data pipelines to support threat disruption and platform abuse efforts. Translate legal and security requirements into scalable services, improve system architecture, monitor production (on-call), collaborate with Threat Intelligence, Legal and Product teams, and mentor other developers to promote testing and best practices.

Lead Cloudflare’s global Trust and Safety organization, overseeing investigators and engineers handling legal information requests, abuse reports, fraud, account security, and sensitive escalations. Develop scalable policies, automated systems, transparency reporting, and fair enforcement processes across global markets. Recruit and manage a 24/7 team, collaborate with Legal, Policy, Security, Product, Engineering, and executives, and represent Cloudflare with regulators, government officials, industry groups, customers, and the press.

Leads customer-facing technical discovery, architecture, demonstrations, evaluations, proofs of value, and technical close for Cloudflare One solutions. Advises enterprise customers on Zero Trust, SASE, secure connectivity, WAN transformation, AI security, and related technologies. Partners with sales, product, engineering, support, and customers to drive successful evaluations, communicate business value, create reusable technical assets, and provide feedback for product improvement.

Design, build, and operate secure, resilient distributed systems for secrets and key management across Cloudflare's global network. Re-architect and strengthen internal PKI and machine/workload identity, support and run services (including on-call), and consult with teams to ensure secure system design and usage.