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Security Engineer, Applied AI

Meta· Client Solutions
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London, UKFull-timePosted 3w ago

About the role

Security Engineer role in Meta's Applied Artificial Intelligence (AAI) organization focused on solving hard security problems by designing AI-powered defenses, building security products, conducting adversary research, and translating security expertise into scalable AI-native systems.

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 adversary research, threat analysis, detection engineering, 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 signal, 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 increasing independence, contributing to technical direction within the team
  • Disseminate findings through internal publications, knowledge sharing, and contributions to the broader security community

Qualifications

  • B.S. or M.S. in Computer Science, Cybersecurity, or related field, or equivalent experience. OR PhD + 2 years of hands-on security engineering experience
  • 5+ years of hands-on security engineering experience in one or more domains: detection engineering, threat intelligence, incident response, cloud security, adversary simulation, offensive 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

Skills

Required:Security engineeringProgramming

Benefits

  • (Not specified in the description)
Last updated Oct 23, 2026. Interested? Apply on the company site.

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