Principal Agentic Engineer, AI Ecosystem - Life360

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 107.7 million monthly active users across more than 180 countries.

Life360 has more than 500 remote-first employees.

We are AI Native

We are building an AI native company where AI is an integral part of how we build and operate.

About The Team

Life360's AI ecosystem is being built by three teams working from a shared 2027 vision, each owning a distinct layer:

• AI Platforms — foundational infrastructure and company-wide AI governance: gateways and MCP connector infra, cost and spend controls, observability and safety guardrails, the agent deployment/orchestration platform, and knowledge graphs.
• AI Dev Tooling (AI DevX) — AI-powered developer tools that remove friction across the software development lifecycle: coding assistance and productivity tooling, automated and agentic testing, and codified primitives.
• Agentic PDLC — agents that remove humans from common, repetitive product-development work: on-call investigation, bug triage, code review, and release.

About the Job

We're hiring a Principal-level Agentic Engineer to hold the system view across AI Platforms, AI DevX, and Agentic PDLC — and to give the unowned middle ground between them an owner. This is an architecture-and-build role for someone who can define what an "agent" is as a reusable unit at Life360, set the standards that make agents safe and evaluable, build an ecosystem that supports our agents, and help each team build to that architecture.

The role operates at two altitudes:

• Strategic: Set the technical vision for Life360's AI-Native developer ecosystem.
• Tactical: Get into the core components yourself — agent execution frameworks, context and retrieval systems, eval harnesses, identity and authZ for unattended agents — and ship foundational parts.

What You'll Do

• Architect across the ecosystem: Hold the system view across AI Platforms, AI DevX, and Agentic PDLC. Drive build-vs-buy decisions and build execution frameworks, context and retrieval systems, and token spend telemetry.
• Define & own the unowned middle: Define what an agent is at Life360, design non-human identity and agent authZ models, and stand up shared eval and regression infrastructure.
• Build, hands-on: Ship production code against the highest-leverage components yourself and prototype hard pieces.
• Lead without owning the org chart: Mentor Agentic and Staff engineers across teams, and write architecture decision records, standards docs, and playbooks.

What We're Looking For

• 12+ years of engineering experience, including deep platform or systems architecture work at consumer scale (50M+ MAU preferred).
• Demonstrated experience architecting agentic systems in production.
• Direct experience with non-human identity, service-account, or agent authZ models.
• Experience designing and consuming structured interfaces for AI systems (MCP-style tool definitions, JSON Schema, OpenAPI).
• A track record of building eval and regression frameworks for AI systems.
• Strong architectural instincts across multiple services and teams.
• Fluency in AI economics, including token cost as a design constraint and progressive retrieval.
• Track record of driving technical direction across teams through documentation and prototypes.
• Excellent written communication skills.

Bonus Points

• Experience building or operating an agent orchestration or deployment platform, or an MCP-style connector gateway.
• Background in ML infrastructure, model observability, or production AI systems.
• Experience with mobile engineering (iOS/Android) or high-throughput cloud systems.

Our Benefits

• Medical, dental, vision, life and disability insurance plans (100% paid for employees)
• Paid parental leave
• 401(k) plan with company matching program
• Mental Wellness Program & Employee Assistance Program (EAP)
• Generous time off: flexible PTO, companywide holidays plus summer and winter shutdowns
• Learning & Development programs
• Equipment, tools, and reimbursement support for a remote environment
• Free Life360 Platinum Membership and Tile trackers