Enterprise Application Security Engineer (Builder)

Meta's Enterprise Application Security team is seeking a security engineer with proven experience identifying weaknesses and crafting creative solutions to eliminate those weaknesses at scale. We secure and harden the enterprise applications Meta runs on, both first-party and third-party, and we protect the sensitive data they hold. We don't just identify and help fix security vulnerabilities, we go beyond by preventing security problems before they exist.
Our scope includes securing how Meta adopts third-party AI applications and agentic workflows across the enterprise, a high-priority area with significant visibility across the company. You will be expected to collaborate technically with developers and engineers across large organizations, and you will be relied upon to provide application and infrastructure teams with the security expertise necessary to build the secure enterprise that underpins Meta.
Enterprise Application Security Engineer (Builder) Responsibilities
Conceive, design, develop and improve effective security tooling, automation and/or frameworks that enable enterprise teams at scale to deliver applications and services with appropriate security controls to meet evolving requirements for security, privacy, and data protection
Identify and eliminate classes of security problems by shifting detection and prevention left into the development workflow
Provide just-in-time, actionable, technical security guidance to enterprise application and service teams through code reviews, penetration tests, adversarial testing, threat modeling, architecture design reviews, and other security activities
Collaborate with cross-functional teams to ensure security work is being prioritized and addressed
Design and build security controls and guardrails that allow the safe adoption of third-party AI applications and agentic workflows across the enterprise, including controls governing what automated systems can access and what data they can reach
Protect sensitive and highly confidential data held in enterprise applications by building enforcement mechanisms that operate continuously and at scale

Minimum Qualifications:

B.S. or M.S in Computer Science, Engineering, or related technical discipline, or equivalent experience
2+ years of work experience developing production-level code in Python, PHP, Java, Ruby, Go, Rust, C/C++, or similar language
2+ years of work experience identifying and mitigating security issues in software (Python, PHP, Java, Ruby, Go, Rust, C/C++ or similar language) and knowledge of best practice secure code development
Experience owning a particular component, feature or system
Experience building and securing enterprise-scale software, services, and infrastructure
Experience communicating technical security findings and recommendations in writing to technical and non-technical stakeholders

Preferred Qualifications:

Experience developing software that enables or evaluates security controls in complex systems
Demonstrated ability to integrate AI tools to optimize/redesign workflows and drive measurable impact (e.g., efficiency gains, quality improvements)
Demonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologies
Experience fixing enterprise security problems across broad corporate boundaries using influence and relationships
Experience in designing, analyzing and conducting threat model assessments of enterprise software and services
Experience in penetration testing or red team operations
Contributions to the security community (public research, blogging, presentations, bug bounty, etc.)
Experience automating application security controls in large-scale enterprise environments
Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews)
Broad knowledge of the security domain, which may include security investigations, incident management, digital forensics, offensive security, vulnerability management, application security, and other security disciplines

About Meta

Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and Whats App further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology. People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today—beyond the constraints of screens, the limits of distance, and even the rules of physics.
For those who live in or expect to work from California if hired for this position, please click here for additional information.
United States of America: $122,000/year to $181,000/year + bonus + equity + benefits
Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate, monthly rate, or annual salary only, and do not include bonus, equity or sales incentives, if applicable. In addition to base compensation, Meta offers benefits. Learn more about benefits at Meta.

Equal Employment Opportunity:

Meta is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. You may view our Equal Employment Opportunity notice here.
Meta is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, fill out the Accommodations request form.
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