Senior AI Security Engineer: Build Safe, Scalable AI

EY; Baton Rouge (LA); Hybrid; USD 107,000 - 177,000; Full time

Benefits offered by this job

Medical and dental coverage

Flexible vacation policy

Pension and 401(k) plans

Job summary

EY is hiring for a security-focused role within Challenger, shaping AI security controls across data, AI models, and delivery pipelines. You will partner with product and engineering to embed defenses, run adversarial tests, and replace one-off reviews with reusable patterns and measurable coverage.

The role emphasizes practical risk reduction, runbooks, and evidence-based decisions, with up to 50% travel and hybrid office access in the US.

Qualifications

• Security engineering depth across app, cloud, platform, identity and data security.
• AI threat judgment: model prompts, agents, tools and retrieval paths.
• Control engineering: translate threats into preventive, detective, and responsive measures.
• Adversarial mindset: red teaming, reproducible testing, vulnerability analysis.
• Automation capability: build security tests, telemetry and reference components.
• Pragmatic influence: clear communication and product judgment.

Responsibilities

• Set the security direction and own reusable AI security patterns and threat models.
• Join builders early to identify attack paths and shape controls.
• Design scoped authority for identity, access, isolation, approvals, and recovery.
• Protect sensitive information across the data lifecycle and access controls.
• Secure the delivery path with automated tests, policy gates, and evidence.
• Test adversarially with red-team exercises and actionable guidance.
• Build runtime protection with end-to-end evidence and signals.
• Strengthen response with vulnerability triage and containment options.
• Advise on residual risk with concise technical recommendations.
• Build shared capability by creating reference implementations and reusable controls.

Skills

Security engineering

AI threat judgment

Control engineering

Adversarial mindset

Automation capability

Pragmatic influence

Education

Bachelor’s Degree in a relevant field

Job description

EY is hiring for a security-focused role within Challenger, shaping AI security controls across data, AI models, and delivery pipelines. You will partner with product and engineering to embed defenses, run adversarial tests, and replace one-off reviews with reusable patterns and measurable coverage.

The role emphasizes practical risk reduction, runbooks, and evidence-based decisions, with up to 50% travel and hybrid office access in the US.