Staff Software Engineer, Ads Engineering (AI-Native)

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), 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 and Canada) regardless of any specified location above. We are AI Native We use AI coding tools as a professional standard on this team. Here's what that means in practice: Daily use: You use AI coding assistants (we support Claude Code, Cursor, and GitHub Copilot) for real, substantive tasks: analysis, coding, refactoring, testing, navigating codebases, and documentation. Not just research or autocomplete. Judgment and ownership: AI-generated code gets the same review you'd give any PR. You are accountable for everything you ship. Velocity: We expect senior engineers who use AI well to operate with meaningful leverage — doing more with the same time, taking on problems that would otherwise require a larger team. Team leadership: You share what works. You automate prompting strategies that others can build on and help teammates earlier in their AI workflow adoption get up to speed. Continuous learning: The tooling is changing fast. You stay current and bring recommendations to the team when something would meaningfully improve how we work. Undisclosed use of AI not previously discussed with or approved by your Recruiter may impact your candidacy. About The Team Join us as we build the next evolution of our backend services to support Life360’s continued global growth. As part of the Ads team, you will help scale and modernize our AdServer and Exchange platform — a high-availability, low-latency distributed system processing billions of requests and events per day. We are evolving our backend architecture to power monetization across our ecosystem at massive scale. You will partner closely with Architecture and Product teams to expand our advertising capabilities, integrate new demand and supply partners, and support 20+ billion daily events. Together, we are building systems that are resilient under heavy load, horizontally scalable, and flexible enough to meet rapidly evolving product demands. As a Staff Engineer, you will guide technical direction while remaining hands-on, delivering reliable, high-performance Java-based services within AWS infrastructure that directly support Life360’s growth. At Life360, our teams are motivated by impact , thrive when empowered with high agency , are always curious , and build with engineering excellence as a first principle. About the Job As a Staff Level Backend Cloud Engineer, you will play a pivotal role in architecting and developing robust ad servers and ad ecosystems that seamlessly integrate with third-party services. You will be responsible for designing scalable and efficient backend systems that support high-volume ad transactions and deliver real-time performance. Your expertise will drive the implementation of innovative features, ensuring optimal functionality and user experience. Collaborating closely with cross-functional teams, you will leverage cloud technologies t