Company Name: Life360

Job Details: 2,Locations,Remote,155K-228K,Senior,level

Job Url: https://builtin.com/job/senior-machine-learning-engineer-ii/7251447

Job Description: About Life360Life360’s mission is to keep people close to the ones they love. Our category-leading mobile app and Tile tracking devices 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 88 million monthly active users (MAU), as of June 2025 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 that basically are 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) regardless of any specified location above.About the JobThe newly formed AI Growth Enablement team sits at the intersection of Product, Data Science, and Engineering. Our charter is to unlock step-function growth in users, subscribers, and revenue by building shared AI/ML capabilities — including but not limited to experimentation and automation tools, generative AI models, predictive-model APIs, and self-serve tooling—that accelerate decision-making, experimentation and automation across multiple product teams. You’ll partner closely with Data Scientists and other Cloud engineers in the Growth organization, as well as Data Analysis teams and mobile enigneers, to turn data and models into delightful, effective experiences at scale, and to empower each team to leverage AI/ML in the most effective way to drive user and revenue growth.Come join us as we build the infrastructure to handle our ever growing user base. We will continue to break down our monolith in favor of microservices that service our mobile clients today. You will be working alongside our Architecture and Product teams to move fast as we expand the business to build a recommendation engine that empowers rapid experimentation.Together, we will build systems that are strong and reliable to uphold a heavy load, yet malleable to fit many product demands. For candidates based in the US, the salary range for this position is $155,000 to $228,000 USD. For candidates based out of Canada, the salary range for this position is $176,000 to $206,000 CAD. 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 DoPartner with Product, Data Science, and Cloud Engineering to design and deploy ML models that power personalization, experimentation, and automation use casesBuild, productionize, and maintain real-time model APIs for recommendations, predictive targeting, and generative AI experiencesWork with backend and mobile engineers to integrate model outputs directly into user-facing featuresContribute to the development of self-serve ML infrastructure to accelerate experimentation across product teamsDesign and implement feature pipelines, model training workflows, and scalable inference systemsCollaborate on our long-term vision for a flexible, extensible ML platform that supports multiple use cases across Growth and Core product teamsMonitor and maintain model health, performance, and drift in productionExample: Build the recommendation engine that helps Life360 surface the most relevant feature or plan to the right user at the right timeExample: Deploy an ML model to predict the optimal moment to nudge a user to subscribe to PremiumExample: Create infrastructure for personalized notifications that adapt in real time to user behaviorMonitor health, suggest improvements for and deploy your own servicesMentor other developers who are trying to growBuild technical specs with Staff engineersHandle on call rotation and address live incidentsWhat We’re Looking ForBachelor’s degree in Computer Science, Machine Learning, Applied Math, or a similar quantitative field—or equivalent industry experience5+ years of professional experience in building and deploying ML models in productionStrong proficiency in Python or Java, model development libraries (e.g. PyTorch, TensorFlow, scikit-learn), and ML Ops toolsExperience with serving ML models behind scalable APIs with low-latency performance requirementsAbility to design, build, and manage real-time and batch data pipelines, ideally in collaboration with Data EngineeringKnowledge of experiment design, A/B testing, and causal inference methods for ML product validation - bonus if you have experience with StatSigFamiliarity with microservices architecture, containerization (Docker, Kubernetes), and modern deployment pipelinesComfortable collaborating cross-functionally with mobile, backend, and data platform teamsBonus: Experience building recommendation systems or ranking modelsBonus: Experience integrating models into mobile client applicationsBonus: Familiarity with streaming systems like Kafka Bonus for experience working with Kafka StreamsAt Life360 we use certain technologies, experience with these technologies will serve you well: AWS (EC2, EKS, DynamoDB, Kinesis), databases (MySql), Languages (Java, Python, PHP) We value having a diverse and inclusive community from many backgrounds, so even if you don’t meet 100% of the above qualifications, you should still seriously consider applying!Our BenefitsCompetitive pay and benefitsMedical, dental, vision, life and disability insurance plans (100% paid for employees)401(k) plan with company matching programEmployee Assistance Program (EAP) for mental wellness.Flexible PTO and 12 company wide days off throughout the yearLearning & Development programsEquipment, tools, and reimbursement support for a productive remote environmentFree Life360 Platinum Membership for your preferred circleLife360 ValuesOur company’s mission driven culture is guided by our shared values to create a trusted work environment where you can bring your authentic self to work and make a positive difference Be a Good Person - We have a team of high integrity people you can trust. Be Direct With Respect - We communicate directly, even when it’s hard.Members Before Metrics - We focus on building an exceptional experience for families. High Intensity, High Impact - We do whatever it takes to get the job done.Our Commitment to DiversityWe believe that different ideas, perspectives and backgrounds create a stronger and more creative work environment that delivers better results. Together, we continue to build an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. It fuels our innovation and connects us closer to our customers and the communities we serve. We strive to create a workplace that reflects the communities we serve and where everyone feels empowered to bring their authentic best selves to work.We are an equal opportunity employer and value diversity at Life360. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any legally protected status.  We encourage people of all backgrounds to apply. We believe that a diversity of perspectives and experiences create a foundation for the best ideas. Come join us in building something meaningful.#LI-Remote