Lead AI Security Engineer: Platform Threat & Defense

Ernst & Young Oman; Cleveland (OH); Remote; USD 150,000 - 190,000; Full time

Job summary

EY seeks an AI Security Engineer to own the security posture of the Agentic AI platform end to end. You will defend against agentic threats, shape platform security from silicon-level attestation to policy enforcement, and work across AI governance, safety, and regulatory landscapes.

The role requires deep cloud-native security expertise, experience in threat modeling, and ability to articulate security controls across multiple deployment stages and environments.

Qualifications

• Must have deep cloud-native security expertise.
• Experience writing threat models and policy-as-code.
• Strong knowledge of Kubernetes hardening and supply-chain security.

Responsibilities

• Own the platform threat model across all deployment targets from cloud to air-gapped.
• Define the security engineering and controls for infrastructure, Kubernetes, identity, and data security.
• Establish a secure-by-default contract with templates, charts, and network policies.
• Lead defense against agentic threat classes including prompt injection and jailbreak risks.
• Define agent authority model and ensure non-escalation across hops.

Job description

EY seeks an AI Security Engineer to own the security posture of the Agentic AI platform end to end. You will defend against agentic threats, shape platform security from silicon-level attestation to policy enforcement, and work across AI governance, safety, and regulatory landscapes.

The role requires deep cloud-native security expertise, experience in threat modeling, and ability to articulate security controls across multiple deployment stages and environments.