[Remote] Senior Software Engineer II, AI Native, Experimentation & ML

Note: The job is a remote job and is open to candidates in USA. Life360 is a company dedicated to keeping families connected through innovative technology. They are seeking a Senior Software Engineer II to design and build high-quality APIs and services for their experimentation platform and recommendation systems, leveraging AI as a core part of their engineering processes.ResponsibilitiesDesign and build high-quality APIs and services for our experimentation platform and recommendation/personalization systems — experiences that are reliable, performant, and genuinely useful to product teams and membersWork with AI (Claude Code) as a first-class collaborator — your primary workflow involves orchestrating agents to create specs, generate code and tests, verify results, and perform reviewsHelp define and codify AI-Native engineering practices for the team, establishing playbooks the broader org can adoptBuild across the backend stack as needed — shipping polished, performant, and reliable experiences to tens of millions of usersCollaborate closely with product managers and data teams to turn complex user problems into elegant, scalable engineering solutionsContribute to architectural decisions, code reviews, and a culture of craft and continuous improvementParticipate in on-call rotation and incident responseUse agentic workflows to dramatically increase the delivery of strong outcomes — moving faster without sacrificing qualityMentor team members and contribute to team processes, technical standards, and help evolve the team's AI-native engineering practicesSupport performance, reliability, and accessibility across the features you ownSkills6+ years of backend software engineering experienceStrong proficiency with Java and Spring Boot (this is our primary stack)Experience with Apache Kafka or similar distributed streaming platformsSolid understanding of distributed systems concepts: consistency, fault tolerance, replication, and data durabilityComfortable with cloud infrastructure (AWS preferred) and containerized deploymentsHeavy user of agentic workflows, understands research-plan-implement cycle but doesn't outsource thinking to agentsAt least 1 year of hands-on experience prompting, evaluating, and building with LLMsGrowth mindset - You structure problems precisely, you learn quickly, you can show interest outside 'your lane', and you are always happy to try something newCollaborative approach - You communicate clearly, work well across teams, and value diverse perspectivesOwnership mentality - You take responsibility for your work from design through production and beyondAI-native working style - You use AI tooling (Claude Code or equivalent) as a genuine development partner: delegating discrete tasks, reviewing outputs critically, and running parallel workstreams rather than hand-holding one agent at a timeThoughtful communication - You can explain technical tradeoffs and articulate ideas effectivelyExperience building or operating experimentation, A/B testing platforms or feature-flagging systemsExperience supporting recommendation, personalization, or ML-serving systems (feature stores, online/offline pipelines, low-latency model serving)Background in stream processing frameworks (Kafka Streams, Flink)Experience with schema registries and schema evolution strategiesKnowledge of Confluent Platform or Confluent CloudUnderstanding of CI/CD patterns, GitHub Actions, and artifact management (Maven, Nexus)Experience with observability tooling (Prometheus, Grafana, DataDog)Previous work on ecosystems or integration toolingBenefitsThe compensation package includes a wide range of medical, dental, vision, financial, and other benefits, as well as equity.Competitive pay and benefits.Medical, dental, vision, life and disability insurance plans (100% paid for US employees). We offer supplemental plans for medical and dental for Canadian employees.401(k) plan with company matching program in the US and RRSP with DPSP plan for Canadian employees.Employee Assistance Program (EAP) for mental wellness.Flexible PTO and 12 company wide days off throughout the year.Winter and Summer Weeklong Synchronized Company ShutdownsLearning & Development programs.Equipment, tools, and reimbursement support for a productive remote environment.Free Life360 Platinum Membership for your preferred circle.Free Tile ProductsLife360 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.Company OverviewLife360 creates a mobile app for families that helps families feel closer together. It was founded in 2008, and is headquartered in San Francisco, California, USA, with a workforce of 501-1000 employees. Its website is http://www.life360.com.Company H1B SponsorshipLife360 has a track record of offering H1B sponsorships, with 4 in 2026, 15 in 2025, 22 in 2024, 17 in 2023, 21 in 2022, 17 in 2021, 7 in 2020. Please note that this does not guarantee sponsorship for this specific role.