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Remote Principal AI Security Engineer, AI Native Platform

14 days ago

Los Angeles

Life360's mission is to keep people close to the ones they love. Our category-leading mobile app, Tile tracking devices, and Pet GPS tracker empower members to protect the people, pets, and things they care about most with a range of services, including location sharing, safe driver reports, and crash detection with emergency dispatch. Life360 serves approximately 95.8 million monthly active users (MAU), as of December 31, 2025, across more than 180 countries. Life360 delivers peace of mind and enhances everyday family life with seamless coordination for all the moments that matter, big and small. By continuing to innovate and deliver for our customers, we have become a household name and the must-have mobile-based membership for families (and those friends who are basically family). Life360 has more than 500 (and growing!) remote-first employees. For more information, please visit life360.com. Life360 is a Remote-First company, which means a remote work environment will be the primary experience for all employees. All positions, unless otherwise specified, can be performed remotely (within the US) regardless of any specified location above. We are building an AI native company where AI is an integral part of how we build and operate. AI tool usage during interviews varies by role. You may be asked to demonstrate proficiency with AI tools, discuss how you leverage AI, or complete interview exercises without AI assistance. Your Recruiter will provide clear guidance as you move through the interview process. Undisclosed use of AI not previously discussed with or approved by your Recruiter may impact your candidacy. The AI Native Platform team is a cross-functional engineering organization built to lay the infrastructure foundations for Life360's AI-native transformation. We are not exploring what might be possible, we are building the platform that makes it operational. The team works across four interconnected areas: how Life360 safely accesses and governs the use of frontier AI models and external integrations; the agent deployment and workflow infrastructure that lets teams build, test, version, and operate autonomous agents with the same rigor applied to any production software; how we safely democratize data, information, and knowledge across the organization, making it queryable and usable by AI systems and humans reliably; and a multiplayer AI workbench that gives every employee a purpose-built environment tuned to their role, with relevant tools, knowledge, and workflows rather than a general-purpose chat interface. The work is deliberate, high-velocity, and built to last. The bar is high: real use cases, production deployments, measurable outcomes. Security is not a checkpoint on this team. It is part of how we build. We are looking for engineers who want to be in the room where the architecture is designed and in the codebase where it's being built. We are hiring a Principal AI Security Engineer to secure Life360's AI infrastructure as it takes shape. You will sit within the AI Native Platform team, reporting directly to the CISO, working alongside the engineers designing and building each layer of the platform. This role requires both architectural depth and hands-on execution, often in the same week. You will define the security architecture other engineers build within; the trust model, authorization framework, data boundary topology, and threat model. Guide the coherence of these patterns across the teams building model access, agent infrastructure, the knowledge layer, and the end-user platform to interoperate securely and drift doesn't introduce systemic risk. The patterns we are securing are still being defined. Part of the work is figuring out which approaches hold up under real conditions, which ones don't, and scaling what works.You won't be doing this alone, you'll work alongside additional security engineers and the broader team building the platform, with the expectation that this function grows as the platform does. The data at stake has real weight. Life360's systems carry real-time location data and family relationship graphs for tens of millions of people. These are crown jewels in the truest sense — irreplaceable to the families who trust us with them. Securing the AI systems that interact with this data is not a compliance exercise. It is a core obligation of the product. The US-based salary range for this position is $239,500 to $351,500. We take into consideration an individual's background and experience in determining final salary — therefore, base pay offered may vary considerably depending on geographic location, job-related knowledge, skills, and experience. The compensation package includes a wide range of medical, dental, vision, financial, and other benefits, as well as equity. • Own the security strategy for frontier model access and MCP governance. Define how we securely connect to frontier models and external tool integrations: the risk framework, the authorization architecture, and the escalation model before those patterns harden at scale. Set the direction that builders implement within, • Architect the identity and trust model for non-human agents. Define how agents authenticate, how trust is established and revoked across orchestration chains, and how the model evolves as agent capabilities expand, covering service identities, scoped credentials, and least-privilege access patterns across the platform., • Set the adversarial defense posture for AI systems in production. Define our approach to prompt injection defense, adversarial input handling, and behavioral monitoring patterns and establish the detection philosophy, telemetry requirements, and response framework the team builds and operates within., • Shape security architecture for the common AI end-user platform. Lead design reviews and build the access controls, data boundary enforcement, and abuse detection that keep a shared AI environment safe across an employee population with varying privilege levels., • Secure the shared knowledge layer. Define access control and data governance for retrieval and reasoning, ensuring AI-powered tools don't inadvertently surface sensitive data to the wrong systems or users., • Build AI supply chain integrity into the platform. Develop model provenance practices, service vetting, and dependency controls that keep the AI stack trustworthy as it grows., • Partner with Privacy, Legal, and Data Platform to ensure the right controls are built into pipelines handling real-time location, family relationship data, and data involving minors., • 15+ years in security engineering with depth in application security, cloud security, IAM, or detection. A track record of building controls that earn adoption, not just approval., • Security architecture ownership you’ve defined at the platform level in terms of trust models, data boundary topologies, and long-term viability that produces security outcomes without grinding velocity., • Hands-on fluency with LLM and agentic systems. You've built with these tools, broken them, and shipped fixes for prompt pipelines , RAG architectures, and multi-agent orchestration from the inside., • Deep grounding in IAM for non-human systems: service identities, OAuth, secrets management, RBAC/ABAC, and least-privilege architecture at scale. You’ve designed and built identity systems, not just consumed them, • Experience with production telemetry and detection at an architectural level. You’ve defined security observability strategies, not just individual detections, • Comfort with ambiguity and in-flight builds. You're energized by figuring things out, writing first-draft standards, testing approaches, and scaling what works., • Strategic judgement on when to build v. buy and ability to lead the organization to wise investments., • Strong cross-functional communication across engineering, product, legal, privacy, and senior leadership. You carry risk, tradeoffs, and technical decisions without losing precision.., • You’ve contributed or ready to contribute to the security industry. We’re shaping these patterns together and you’re willing to represent Life360 in these conversations., • Familiarity with NIST AI RMF, OWASP LLM Top 10, and adjacent compliance environments for consumer data at scale., • Bachelor's degree or equivalent experience in Computer Science, Information Security, or a related field. Bonus points if you have: • Experience with frontier model API security, tool-use authorization patterns, or access governance for AI systems at scale., • Hands-on experience with multi-agent orchestration frameworks (LangGraph, AutoGen, CrewAI, or similar) and their trust, identity, and authorization challenges., • Familiarity with knowledge graph architectures, vector stores, or RAG systems — and the access control and data boundary problems they introduce., • Red teaming or adversarial testing against AI systems: prompt injection, jailbreaks, data extraction, model inversion, or supply chain attacks., • Background in consumer technology or another domain where personal data sensitivity is a core product obligation — not just a legal requirement., • Experience designing or reviewing security for internal enterprise AI platforms serving non-technical users., • Competitive pay and benefits, • Medical, dental, vision, life and disability insurance plans (100% paid for employees), • 401(k) plan with company matching program, • Mental Wellness Program & Employee Assistance Program (EAP) for mental well-being, • Flexible PTO, 13 company-wide days off throughout the year, • Winter and Summer Weeklong Synchronized Company Shutdowns, • Learning & Development programs, • Equipment, tools, and reimbursement support for a productive remote environment, • Free Life360 Platinum Membership for your preferred circle, • Free Tile Products Our company's mission-driven culture is guided by our shared values to create a trusted work environment where you can bring your authentic self to work and make a positive difference. • Be a Good Person — We have a team of high integrity people you can trust., • Be Direct With Respect — We communicate directly, even when it's hard., • Members Before Metrics — We focus on building an exceptional experience for families., • High Intensity, High Impact — We do whatever it takes to get the job done. We believe that different ideas, perspectives and backgrounds create a stronger and more creative work environment that delivers better results. Together, we continue to build an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. It fuels our innovation and connects us closer to our customers and the communities we serve. We strive to create a workplace that reflects the communities we serve and where everyone feels empowered to bring their authentic best selves to work. We are an equal opportunity employer and value diversity at Life360. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any legally protected status. We encourage people of all backgrounds to apply. We believe that a diversity of perspectives and experiences create a foundation for the best ideas. Come join us in building something meaningful. Even if you don't meet 100% of the below qualifications, you should still seriously consider applying! #LI-Remote

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