AI Security Engineer: Agentic Platform Defense

Ernst & Young Oman; Milwaukee (WI); Remote; USD 140,000 - 190,000; Full time

Job summary

EY is seeking an AI Security Engineer to own the security posture of EY's Agentic AI platform end to end. The role covers threat modeling, policy-as-code, and defense against agentic threats across cloud-native deployments.

Ideal candidates will have depth in platform security, AI threat models, and experience writing threat models, conducting red-team exercises, and defending engineering to CISOs and regulators.

Qualifications

• Strong background in security engineering for AI-enabled platforms.
• Experience with threat modeling and red-teaming of complex systems.
• Familiarity with Kubernetes hardening, supply-chain integrity, and sandboxed execution.

Responsibilities

• Own the platform threat model across agentic AI components and deployments.
• Define security engineering controls for all platform layers including Kubernetes, identity, and telemetry.
• Lead defense against agentic threat classes including prompt injection and tool abuse.
• Define the agent authority model and ensure non-escalation invariants across hops.
• Lead sandboxing standards for agent-generated code execution and secure execution.

Skills

Threat modeling

Red team

Cloud-native security

AI security

Policy as code

Job description

EY is seeking an AI Security Engineer to own the security posture of EY's Agentic AI platform end to end. The role covers threat modeling, policy-as-code, and defense against agentic threats across cloud-native deployments.

Ideal candidates will have depth in platform security, AI threat models, and experience writing threat models, conducting red-team exercises, and defending engineering to CISOs and regulators.