Security Foundations Lead: Cross-Domain Architect

Meta; Boise (ID); On-site; USD 271,000 - 347,000; Full time

Job summary

Meta is seeking a Security Engineer Lead within Security Foundations to scope, design, and champion security solutions company-wide. You will set technical direction across identity, cryptography, AI security, and cloud, influencing many engineering domains rather than owning a single area.

You will develop defensible threat models, balance security with speed, and build partnerships across security, infra, and legal to translate complex requirements into practical tradeoffs.

Qualifications

• B.S. Computer Science or related field.
• Deep technical expertise across multiple security domains.
• Experience driving large cross-company engineering initiatives.
• Experience managing security risk and balancing security with friction.
• Ability to operate in high-ambiguity environments and influence cross-functional teams.

Responsibilities

• Set technical direction for security solutions and platforms shared across the company, working through Security Engineering, Security Analyst, and Software Engineering teams.
• Determine the highest-risk items across domains company-wide, then lead development of threat models and solutions.
• Define how AI agents are identified, authorized, and audited across Meta's infrastructure.
• Navigate tradeoffs between security and friction or cost, so the company can move fast securely.
• Drive solution design, including technical architecture, and lead implementation as needed.
• Build partnerships across security, infrastructure, corporate engineering, and legal — then translate ambiguous business and regulatory requirements into well-articulated tradeoffs.
• Represent those tradeoffs credibly to senior leadership, including VPs and C-level executives (CTO, CISO), to drive decisions.

Skills

Security engineering leadership

Threat modeling

Cross-functional collaboration

Executive communication

Engineering management

Education

B.S. Computer Science or related field

Tools

Active Directory

Cloud platforms

Job description

Meta is seeking a Security Engineer Lead within Security Foundations to scope, design, and champion security solutions company-wide. You will set technical direction across identity, cryptography, AI security, and cloud, influencing many engineering domains rather than owning a single area.

You will develop defensible threat models, balance security with speed, and build partnerships across security, infra, and legal to translate complex requirements into practical tradeoffs.