Affirm
Staff Security Engineer, Enterprise AI
$195K–$280K
Remote US +1 · Remote · Staff · Full-time · Posted Sep 15, 2026
- Location
- Remote US
Remote Canada
About the job
Build and operate Affirm’s enterprise AI security review process, assess AI/LLM systems and vendors, and develop controls that enable safe AI adoption.
What you'll do
- Review AI systems, data flows, permissions, and architecture; threat-model risks and drive remediation.
- Build AI security guardrails, tooling, tests, and monitoring, including policy-as-code.
- Lead cross-functional AI security initiatives, vendor reviews, and AI incident-response readiness.
What they ask for
- Hands-on experience designing, evaluating, and maintaining security architecture for AI/LLM systems, with enterprise security expertise.
- Practical experience threat modeling AI applications and securing agentic systems, MCP servers/clients, and tool-permission models.
- Experience building security tooling with Python or similar and deploying cloud services and policy-as-code using Infrastructure as Code.
- Knowledge of LLM systems, authn/authz models, and application architecture and threat modeling.
Nice to have
- Familiarity with Kubernetes and AWS.
- Experience in regulated environments (SOC 2, PCI DSS) and applying IAM to non-human/agent identities.
Pay
$220,000 - $280,000 USD base salary; $195,000 - $255,000 USD base salary
Tools
Python, MCP, Terraform, Kubernetes, AWS, OAuth2, SAML, OpenAI
AI focus
Enterprise AI/LLM security reviews, threat modeling, agentic-system and vendor risk assessments, security guardrails, testing, and incident response.
Model-written summary · the original posting is authoritative