Security Engineer Lead, Security Foundations

Security Foundations is seeking a Security Engineer Lead to scope, design, and advocate security solutions across Meta. This role establishes technical direction across multiple security domains, with an emphasis on cross-domain challenges such as agent identity and authorization, and on presenting clear tradeoffs to senior leadership.

Key Responsibilities

• Set technical direction for security solutions and shared platforms across the company, coordinating through Security Engineering, Security Analyst, and Software Engineering teams.
• Identify the highest-risk items across security domains company-wide, then lead the creation of detailed threat models and corresponding solutions.
• Define approaches for how AI agents are identified, authorized, and audited across Meta infrastructure, addressing gaps where neither industry practice nor human-centric models are sufficient.
• Evaluate and navigate tradeoffs between security, friction, and cost to support secure execution at speed.
• Lead solution design, including technical architecture, and drive implementation as needed.
• Develop partnerships across security, infrastructure, corporate engineering, and legal, translating ambiguous business and regulatory requirements into articulated tradeoffs between securing the company and users versus slowing down delivery.
• Present these tradeoffs credibly to senior leadership, including VPs and C-level executives such as the CTO and CISO, to inform decisions.

Required Qualifications

• Deep technical expertise in at least one relevant domain, with a demonstrated ability to become credible quickly in additional domains.
• Substantial experience driving large, cross-company engineering initiatives.
• Experience managing security risk and balancing security with friction in a large organization.
• Experience communicating and influencing across functions to move solutions forward.
• Ability to work in high-ambiguity environments while balancing technical solution design with complex business processes and requirements.
• Hands-on engineering experience, with the ability to lead across a combined Security Engineering and Software Engineering organization.

Technologies

• Active Directory
• Linux
• Windows
• SOX
• SOC 2

Preferred Qualifications

• Experience in identity and access management, cryptographic systems, and massively scaled infrastructure.
• Experience securing AI/ML systems or agentic workloads.
• Familiarity with SOX, SOC 2, or comparable control frameworks, including the engineering work required to meet them.
• Experience leading security efforts spanning both production environments (Linux) and corporate environments (Windows, Active Directory, SaaS).

Role Details

• Location: Washington, DC (onsite)
• Compensation: USD 271,000 - 347,000 per year