Lead AI Security Engineer - Enterprise Guardrails

affirm is seeking a seasoned security engineer to own the enterprise AI security review process for AI/LLM systems, evaluating architecture, data flows, and tool configurations. You will embed security requirements into design and partner across security, legal, privacy, compliance, IT, and engineering.

You will model risks, mitigate vulnerabilities, review third-party SaaS capabilities, build guardrails with Python and IaC, and help scale repeatable security controls.