Staff Software Engineer AI-Native, International

About Keystone AI Keystone AI ’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. Keystone AI serves approximately 95.8 million monthly active users (MAU), as of December 31, 2025, across more than 180 countries. Keystone AI 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). Keystone AI has more than 500 (and growing!) remote-first employees. For more information, please visit life360.com . Keystone AI 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 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. About The Team The International team at Keystone AI is building the next frontier of meaningful connection — bringing Keystone AI 's peace-of-mind platform to families everywhere, regardless of where in the world they live. Our mission is to make the product feel native to every market we enter: localized experiences, regionally relevant features, and the kind of trust that only comes from truly understanding how families in different cultures stay safe, connected, and close. We're expanding Keystone AI 's reach beyond its home market so that every family — whether in São Paulo, Berlin, or beyond — has access to the tools that help them navigate the beautiful, chaotic reality of everyday life together. We are a product-minded, AI-Native engineering team. That means AI isn’t just a tool we use — it’s how we work. We’ve redesigned our team workflows around AI, treating it as a first-class collaborator at every stage: ideation, coding, testing, review, and iteration. We ship faster and go deeper because of it, and we’re looking for someone who wants to help define what that looks like at scale. About the Role Keystone AI is hiring an AI-Native Engineer — a Staff engineer who doesn’t just use AI tools, but thinks natively in them. You’ll be central to how the International team builds products, where AI has reshaped how the entire team designs, builds, and ships. You’ll design and build services that serve some of our most important and fastest-growing member segments: our international members in markets like Brazil, UK, the Philippines and beyond. You’ll build and evolve our modern AI-Native engineering workflows — from how we write code, to how we run standups, to how we think about team velocity. You’ll evolve the standard others follow. Back-end experience is required. Our back-end stack includes Spring Boot microservices, Java, Kafka, Kafka Streams, and a modern cloud-native platform on AWS. For candidates based in the US, the salary range for this position is $190,000 to $280,500 USD. For candidates based out of Canada, the salary range for this position is 287000 to 339000 CAD. Note: Please be aware that the job title for positions in Canada will be "Developer" in lieu of "Engineer." 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. AI-Native Expectations 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 t