Staff AI Architect

### About Life360 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) across more than 180 countries. ### About The Team The AI Lab is a small, founder-led team operating like a zero-to-one startup inside Life360, building the company’s next chapter. Our mission is to transform Life360 from the app you open to find your family into an intelligent operating system families rely on daily. We design and build an AI-powered layer on top of our family graph, leveraging our core location technologies and global 100 million-user base to proactively surface what matters across location, schedules, and everyday life. ### About the Job Your role is owning how Life360's deterministic backend (location data, the family graph, behavioral signals, user insights) pairs with the probabilistic world of LLMs. You will decide how those two sides communicate and ensure seamless integration. Responsibilities include: - Owning the inference pipeline end to end: model selection, serving infrastructure, evaluation loops, prompt and context strategy, and cloud services. - Making tradeoffs between latency, cost, and quality. - Building evaluation harnesses to assess system improvements. If you do this job right, the product feels seamless to users, the data stays safe, and inference costs are managed effectively.