Senior AI Security Engineer

EY; Austin (TX); Hybrid; USD 107,000 - 201,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

401(k) plan

Flexible vacation

Job summary

EY is seeking a security engineering leader to embed defensive AI controls across data, tools, and processes. You will work with product and engineering teams to prove controls under adversarial conditions and replace one-off reviews with reusable patterns and measurable coverage.

The Challenger program builds reusable tools and shared risk guardrails to accelerate safe AI deployments. You will contribute to practical, scalable security patterns and evidence-driven responses for real-world AI

Qualifications

• 5+ years of relevant experience.
• Bachelor’s Degree in a relevant field.
• Substantial experience in product, application, cloud, platform, or detection security, including hands-on ownership of production controls.
• Threat modeling: ability to assess complex systems and turn attack paths into practical engineering measures.
• Production security: experience securing modern applications, cloud environments, identities, data, and software delivery pipelines.
• AI systems knowledge: working understanding of generative and agentic AI, including retrieval, model access, tool use, evaluation, and runtime behavior.
• Hands-on automation: experience building or extending security tests, controls, telemetry, or reference implementations.
• Response experience: evidence of supporting vulnerability or incident response and translating lessons into stronger technical controls.
• Cross-functional delivery: partnering with engineers and risk functions to improve security while respecting user value and delivery constraints.
• Travel and On-site requirements: up to 50% travel and hybrid office work.

Responsibilities

• Set the security direction. Own reusable AI security patterns, control objectives, reference architectures, and threat models.
• Join builders early. Work with teams before key design choices are fixed, identifying credible attack paths and shaping controls.
• Design scoped authority. Create patterns for identity, access, isolation, approvals, and recovery.
• Protect sensitive information. Embed security across the data lifecycle with confidentiality and integrity.
• Secure the delivery path. Integrate automated security tests and safe rollback into engineering workflows.
• Test adversarially. Run red-team exercises and translate findings into repeatable tests.
• Build runtime protection. Use evidence and signals to detect abnormal actions and exfiltration.
• Strengthen response. Support vulnerability triage with actionable guidance.
• Advise on residual risk. Provide concise technical recommendations to owners.

Skills

Security engineering depth

AI threat judgment

Control engineering

Adversarial mindset

Automation capability

Pragmatic influence

Education

Bachelor’s Degree in a relevant field

Job description

EY is seeking a security engineering leader to embed defensive AI controls across data, tools, and processes. You will work with product and engineering teams to prove controls under adversarial conditions and replace one-off reviews with reusable patterns and measurable coverage.

The Challenger program builds reusable tools and shared risk guardrails to accelerate safe AI deployments. You will contribute to practical, scalable security patterns and evidence-driven responses for real-world AI