Senior AI Security Engineer — Secure AI at Scale

EY; Tallahassee (FL); Hybrid; USD 107,000 - 177,000; Full time

Job summary

EY is seeking a security leader within Challenger to embed AI security throughout the lifecycle, turning threats into practical controls for safe AI use cases. You will collaborate with product and engineering teams to build reusable patterns, evidence, and repeatable tests that scale across services.

The role emphasizes threat modeling, production security, and scalable control implementations, with up to 50% travel and a hybrid US-based office presence to support risk-aware delivery.

Qualifications

• Strong foundations in application, cloud, and data security across delivery pipelines.
• Ability to model prompts, agents, tools, and external services to identify attack paths.
• Experience translating threats into preventive and detective controls implemented by engineers.

Responsibilities

• Set the security direction with reusable AI security patterns and threat models.
• Join builders early to identify attack paths and shape appropriate controls.
• Design practical patterns for identity, access, isolation, approvals, and recovery.

Skills

Security engineering

AI threat judgment

Control engineering

Adversarial mindset

Automation capability

Pragmatic influence

Education

Bachelor’s Degree

Job description

EY is seeking a security leader within Challenger to embed AI security throughout the lifecycle, turning threats into practical controls for safe AI use cases. You will collaborate with product and engineering teams to build reusable patterns, evidence, and repeatable tests that scale across services.

The role emphasizes threat modeling, production security, and scalable control implementations, with up to 50% travel and a hybrid US-based office presence to support risk-aware delivery.