Security Engineer, Applied AI

Meta Careers; Bellevue, Northern (WA, KY); Hybrid; USD 150,000 - 210,000; Full time

Job summary

Meta is seeking a Security Engineer within the Applied AI (AAI) organization in the United States (Bellevue, WA area) to advance the frontier of AI-driven security. This role blends deep security expertise with applied AI research to build AI-augmented defenses and scalable security capabilities at Meta's scale.

You will design, prototype, and deploy security products and tools, conduct adversary research, and translate security expertise into AI-native systems that enhance detection and

Qualifications

• 7+ years in security engineering or related field.
• Experience with AI/ML security is a plus.
• Strong knowledge of cloud security, threat modeling, and incident response.

Responsibilities

• Apply deep security domain expertise to identify and solve complex security problems.
• Prototype AI-powered defenses and security tools at scale.
• Conduct adversary research, threat intelligence, and detection engineering.
• Translate security expertise into scalable AI-native systems.

Skills

Security engineering

AI security

Threat intelligence

Adversary research

Job description

Meta is seeking a Security Engineer to join our Applied Artificial Intelligence (AAI) organization. As a Security Engineer in AAI, you will apply deep domain expertise to solve hard, real-world security problems, building novel security capabilities, prototyping AI-powered defenses, and advancing the frontier of what AI systems can do in security. Your work is AI-augmented from day one: you leverage AI tools and agents to accelerate your impact, and where the models fall short, your expertise directly drives their improvement.You will blend hands-on security engineering with applied research: designing and executing novel approaches to security challenges that push both the state of Meta's security posture and the state of the art in AI-driven security. This includes building security products and tools, conducting original adversary research, developing detection and response capabilities, and translating security expertise into scalable, AI-native systems. Your domain knowledge — whether in detection engineering, threat intelligence and adversary analysis, cloud security, adversary simulation, mobile and platform security, forensic investigation, or emerging areas like AI/ML security — becomes the foundation for capabilities no existing AI system can replicate.This role is for security practitioners who want to operate at the intersection of deep security expertise and frontier AI — not just using AI as a tool, but shaping what it becomes.---## Security Engineer, Applied AI Responsibilities* Apply deep security domain expertise to identify, scope, and solve complex security problems that require multi-step reasoning, novel approaches, and expert judgment* Build security products, tools, and capabilities — prototyping AI-driven solutions to real-world security challenges at Meta's scale* Design and execute adversarial research, threat intelligence analysis, detection engineering, platform security research, or investigation workflows augmented by AI tools and agents