Applied AI Security Engineer & Innovator

Meta; Pierre (SD); On-site; USD 154,000 - 217,000; Full time

Job summary

Meta is seeking a Security Engineer within the Applied AI Intelligence (AAI) organization to blend hands-on security engineering with applied research, building AI-powered defenses and AI-native security capabilities at scale.

You will work with model researchers to translate security expertise into training signals, conduct adversarial research, threat intelligence analysis, and develop structured processes that scale security across teams.

Qualifications

• BS or MS in Computer Science, Cybersecurity, or a related field, or equivalent experience
• 5+ years of hands-on security engineering experience in one or more domains: detection engineering, threat intelligence, incident response, cloud security, adversarial simulation, offensive security, mobile/platform security, or digital forensics
• Extensive knowledge of attacker tactics, techniques, and procedures
• Proficiency in coding with experience in languages such as Python, Go, C/C++, or shell scripting
• Experience building security systems, tools, or capabilities - not just identifying problems but engineering solutions
• Demonstrated ability to operate independently on complex, ambiguous security challenges

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
• Identify where AI models lack security reasoning capability and directly contribute to improving them through expert-generated signals, evaluation, and feedback
• Develop novel methodologies and reusable approaches that advance both Meta's security posture and AI system performance in security domains
• Collaborate with model researchers to translate security expertise into training signal - decomposing hard problems into structured challenges that teach models to reason like security experts
• Partner cross-functionally with engineering, product, and research teams to incorporate security innovations into production AI systems
• Drive end-to-end execution of complex security initiatives with independence, contributing to the technical direction within the team
• Disseminate findings through internal publications, knowledge sharing, and contributions to the broader security community

Skills

Python

Go

Security engineering

Threat intelligence

Adversarial research

Cloud security

Incident response

Education

BS in CS or related field

Job description

Meta is seeking a Security Engineer within the Applied AI Intelligence (AAI) organization to blend hands-on security engineering with applied research, building AI-powered defenses and AI-native security capabilities at scale.

You will work with model researchers to translate security expertise into training signals, conduct adversarial research, threat intelligence analysis, and develop structured processes that scale security across teams.