Senior Backend Engineer - AI Native Devices Cloud

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 97.8 million monthly active users (MAU), as of March 31, 2026, 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 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 Devices Cloud team owns the backend services that power Life360's fleet of connected hardware — Tile trackers, Jiobit wearables, Pet GPS trackers, and emerging device categories. We manage real-time device state, high-frequency telemetry ingest, and the cloud infrastructure that translates physical-world signals into reliable, family-facing experiences. Our work sits at the intersection of hardware, firmware, mobile, and platform — and runs at a scale where correctness and reliability aren't optional. We are an AI-Native team. AI isn't an add-on to how we work — it's how we work. We've redesigned our development workflows around AI, using it as a first-class collaborator at every stage: spec writing, code generation, test authoring, incident triage, and system design. We ship faster and go deeper because of it. We're looking for engineers who want to help define what AI-native backend development looks like for complex, hardware-connected systems. About the Job As a Senior Backend Engineer on the Devices Cloud team, you will design and deliver the core cloud systems that power Life360's connected hardware — Tile trackers, Jiobit wearables, and emerging device categories. You own complete features and subsystems across real-time state management, high-frequency telemetry ingest, and the integration layer that connects physical hardware to family-facing experiences. You operate with a high degree of autonomy. You participate in technical design, break down complex work, deliver accurate estimates, and lead medium-sized projects end to end. You partner closely with firmware, mobile, platform, and data teams, mentor junior engineers, and help raise the team's engineering standards. Your work shapes systems serving tens of millions of families daily. You are also a strong practitioner of AI-native engineering. You use AI as a first-class collaborator across spec writing, coding, testing, and incident triage — and you share the practices that work so the whole team moves faster. For candidates based in the US, the salary range for this position is $129,000 - $192,000 USD. For candidates based out of Canada, the salary range for this position is $149,500 to $177,500 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. What You’ll Do Design, build, and operate Devices Cloud services — device connectivity, telemetry ingest, state management, command/control, and data pipelines — ensuring they are scalable, secure, and reliable at Life360's scale. Own complete features and subsystems from technical design through production, breaking down complex work, identifying dependencies, and delivering accurate estimates. Apply AI-native engineering practices day to day: use AI assistants for spec writing, code generation, test coverage, and incident response, and share the prompting strategies that work with the team. Partner with firmware, mobile, product, and platform teams to define APIs and integration patterns that translate cleanly across the hardware-software boundary. Lead medium-sized, cross-functional initiatives, coordinating the work of other engineers and keeping delivery on track. Identify risks, bottlenecks, and security gaps in your areas of ownership, and build in the automation and tests that prevent regressions. Mentor junior engineers: coach them on structuring changes for review, conduct thorough code reviews, and help grow their skills. Communicate progress, trade-offs, and technical concepts clearly to peers, partner teams, and your manager. Write clear, concise technical specifications, and contribute to team documentation and knowledge sharing. Participate in on-call rotation and contribute to high-severity incident response and post-mortems. What We’re Looking For 3+ years of experience building and operating backend or cloud infrastructure system