AI-Powered Security Engineer

Meta; City of Westminster; On-site; GBP 100,000 - 150,000; Full time

Job summary

Meta is seeking Security Engineers to join the Applied Artificial Intelligence (AAI) organization. The role blends deep security engineering with applied AI research to build novel AI-powered defenses and scalable AI-native security systems.

Responsibilities include prototyping AI-driven security solutions, adversary research, and translating security expertise into training signals for models, with cross-functional collaboration across engineering, product, and research teams.

Qualifications

• Advanced degree or equivalent experience in security engineering or related field.
• 5+ years in hands-on security engineering across multiple domains.
• Extensive knowledge of attacker TTPs.
• Proficiency in coding with Python, Go, C/C++, or shell scripting.
• Experience building security systems and tooling, not just identifying problems.
• Ability to work independently on complex security challenges.
• Experience integrating AI tools to optimize workflows.
• Experience with responsible, ethical AI practices and evaluation.
• Ongoing AI skill development (prompt engineering, agents) and staying current.

Responsibilities

• Apply deep security expertise to identify and solve complex problems requiring multi-step reasoning.
• Build security products and prototyping AI-driven defenses at scale.
• Design and execute adversary research and threat analysis augmented by AI tools.
• Improve AI models with security signaling, evaluation, and feedback.
• Develop reusable approaches to advance security posture and AI system performance.
• Collaborate with model researchers to create training signals for security experts.
• Partner with engineering, product, and research to productionize security innovations.
• Drive end-to-end execution of complex security initiatives with independence.
• Disseminate findings through internal publications and community contributions.

Skills

Deep security domain expertise

Adversary research

AI tool integration

Security product engineering

Threat intelligence

Cloud security

Incident response

Forensic investigation

Python

Go

C/C++

Shell scripting

AI prompt engineering

Agent orchestration

Distributed systems

Security tooling

Model evaluation

Red-teaming

DLP/IR tooling

Threat modeling

Security research

Production AI systems

Ethical AI practices

Cloud detection and response

Supply chain security

Mobile platform security

Network protocol security

AI model performance optimization

Education

B.S./M.S. in CS, Cybersecurity, or related field

PhD + 2 years security engineering

Tools

Python

Go

C/C++

Shell scripting

Job description

Meta is seeking Security Engineers to join the Applied Artificial Intelligence (AAI) organization. The role blends deep security engineering with applied AI research to build novel AI-powered defenses and scalable AI-native security systems.

Responsibilities include prototyping AI-driven security solutions, adversary research, and translating security expertise into training signals for models, with cross-functional collaboration across engineering, product, and research teams.