Principal AI Security Engineer, AI Native Platform

This is a fully remote position, open to applicants in United States.

📋 Description

• Take charge of the security strategy for frontier model access and MCP governance. Establish secure connections to frontier models and external tool integrations, including the risk framework, authorization architecture, and escalation model, prior to these patterns being implemented at scale. Provide guidance for builders to follow.

• Design the identity and trust model for non-human agents. Determine the authentication processes for agents, how trust is established and revoked throughout orchestration chains, and how the model adapts as agent capabilities develop, addressing service identities, scoped credentials, and least-privilege access patterns across the platform.

• Establish the adversarial defense strategy for AI systems in production. Define our methodology for prompt injection defense, adversarial input management, and behavioral monitoring patterns, while also establishing the detection philosophy, telemetry requirements, and response framework that the team will implement and maintain.

• Influence the security architecture for the common AI end-user platform. Direct design reviews and develop access controls, data boundary enforcement, and abuse detection mechanisms that ensure a safe shared AI environment across a diverse employee population with varying privilege levels.

• Safeguard the shared knowledge layer. Establish access control and data governance policies for retrieval and reasoning, ensuring that AI-powered tools do not unintentionally expose sensitive data to inappropriate systems or users.

• Integrate AI supply chain integrity into the platform. Create model provenance practices, service vetting protocols, and dependency controls that uphold the trustworthiness of the AI stack as it expands.

• Collaborate with Privacy, Legal, and Data Platform teams to ensure that the appropriate controls are integrated into pipelines that manage real-time location, family relationship data, and data concerning minors.

⛳️ Requirements

• Over 15 years of experience in security engineering with expertise in application security, cloud security, IAM, or detection. A proven history of developing controls that achieve adoption rather than mere approval.

• Ownership of security architecture at the platform level, particularly in trust models, data boundary topologies, and long-term viability that generates security outcomes without hindering velocity.

• Practical experience with LLM and agentic systems. You have actively built with these tools, identified their weaknesses, and implemented solutions for prompt pipelines, RAG architectures, and multi-agent orchestration from a hands-on perspective.

• Extensive knowledge in IAM for non-human systems, including service identities, OAuth, secrets management, RBAC/ABAC, and least-privilege architecture at scale. You have designed and constructed identity systems rather than merely utilizing them.

• Proven experience with production telemetry and detection from an architectural perspective. You have formulated security observability strategies, rather than focusing solely on isolated detections.

• Ability to navigate ambiguity and ongoing projects. You thrive on problem-solving, drafting initial standards, testing various approaches, and scaling successful solutions.

• Strategic insight on when to build versus buy, along with the capability to guide the organization towards prudent investments.

• Strong cross-functional communication skills across engineering, product, legal, privacy, and senior leadership. You effectively convey risks, trade-offs, and technical decisions with clarity and precision.

• A track record of contributions to the security industry or readiness to engage in industry discussions. You are prepared to represent Life360 in shaping these security patterns collaboratively.

• Familiarity with NIST AI RMF, OWASP LLM Top 10, and related compliance frameworks for consumer data at scale.

• A Bachelor's degree or equivalent experience in Computer Science, Information Security, or a relevant field.

🏝️ Benefits

• Competitive pay and benefits

• Medical, dental, vision, life, and disability insurance plans (100% covered for employees)

• 401(k) plan with company matching program

• Mental Wellness Program & Employee Assistance Program (EAP) for mental well-being

• Flexible PTO, with 13 company-wide days off throughout the year

• Winter and Summer Weeklong Synchronized Company Shutdowns

• Learning & Development initiatives

• Provision of equipment, tools, and reimbursement support for an effective remote work environment

• Complimentary Life360 Platinum Membership for your selected circle

• Free Tile Products