Principal Agentic Engineer, AI Ecosystem

Life360

. Hold the system view across AI Platforms, AI DevX, and Agentic PDLC so investments compose instead of collide .

Posted 11/10/2026full-timeRemote • United StatesLead💰 $247,000 - $363,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in architecting agentic systems and building evaluation frameworks for AI systems, with a strong focus on non-human identity and agent authorization models. Proven ability to drive technical direction across teams and communicate architectural decisions effectively.

Highest-signal resume keywords

12+ Years Engineering ExperienceArchitecting Agentic SystemsNon-Human Identity ModelsBuilding Evaluation FrameworksDriving Technical Direction

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Applicant Tracking System Keywords

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Hard Skills

Systems ArchitectureAgent Authorization ModelsStructured Interfaces DesignEvaluation FrameworksRegression FrameworksCI IntegrationTool-Calling DevelopmentJSON SchemaOpenAPIAI Economics

Soft Skills

Excellent Written CommunicationMentoring

Tools & Technologies

Agent Orchestration PlatformsMCP-Style Tool DefinitionsProduction AI SystemsModel Observability

Industry Keywords

AI PlatformsAgent EcosystemBuild-Vs-Buy DecisionsHigh-Leverage ComponentsMobile EngineeringHigh-Throughput Cloud Systems

Tech Stack

Tools & technologies

Cloud

About the role

Key responsibilities & impact

Hold the system view across AI Platforms, AI DevX, and Agentic PDLC so investments compose instead of collide
Drive build-vs-buy decisions for PDLC-critical agents and ecosystem-wide capabilities
Build execution frameworks, context and retrieval systems, and telemetry for the agent ecosystem
Define Life360's reusable agent unit, interfaces, safety standards, evaluation standards, and promotion gates
Design the non-human identity and agent authorization model for scheduled and unattended agents
Establish shared evaluation and regression infrastructure, including frameworks, CI hooks, and result storage
Ship production code against high-leverage components and prototype/de-risk foundational pieces
Validate architecture under real usage and economics through live agent initiatives such as on-call investigation
Mentor Agentic Engineers and Staff engineers across three teams
Write architecture decision records, standards, and playbooks for independent team execution
Represent a coherent technical perspective in build-vs-buy and roadmap discussions without formal authority

Requirements

What you’ll need

12+ years of engineering experience, including deep platform or systems architecture work at consumer scale (50M+ MAU or equivalent preferred)
Demonstrated experience architecting agentic systems in production
Direct experience with non-human identity, service-account, or agent authZ models — or a clear, well-reasoned point of view on how to build one
Experience designing and consuming structured interfaces for AI systems (MCP-style tool definitions, JSON Schema, OpenAPI)
Experience building for tool-calling and contract-first agent development
Track record of building eval and regression frameworks for AI systems, including promotion gates, scoring, and CI integration
Strong architectural instincts across multiple services and teams
Fluency in AI economics, token cost as a design constraint, progressive retrieval, and model-usage tradeoffs
Track record of driving technical direction across teams without direct management authority
Excellent written communication for architecture decision records, standards, and playbooks
Bonus: experience with agent orchestration/deployment platforms or MCP-style connector gateways
Bonus: background in ML infrastructure, model observability, or production AI systems
Bonus: mobile engineering or high-throughput cloud systems experience

Benefits

Comp & perks

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) for mental well-being
Generous time off: flexible PTO, companywide holidays throughout the year plus summer and winter shutdowns
Learning & Development programs
Equipment, tools, and reimbursement support for a productive remote environment
Free Life360 Platinum Membership and Tile trackers
Equity compensation in the form of Restricted Stock Units (RSUs)