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Sr. Data Scientist






San Francisco, CA, US


Lumosity is looking for a seasoned data scientist to join our data science team. Data Science at Lumosity works closely with our Product, Marketing, and Science teams, leveraging the data from over 90 million members to build compelling product features, supports robust product experimentation and analysis, and supports our scientific efforts. Our database of over 5 billion brain training gameplays is one of our most important resources and competitive advantages, so the data scientist will not only be contributing technically but also be a key role in driving our data science strategy going forward.


    • Work with product managers and designers to develop new product features which benefit our users and leverage our huge cognitive training dataset
    • Support and influence the product managers’ and marketing team’s roadmap by conducting in-depth analyses of Lumos’ data on user behavior patterns and game engagement
    • Build models to create a personalized user experience in product and marketing, including ELTV (Expected LifeTime Value) modeling, predicting churn, game recommendations, etc.
    • Work with our engineering teams to turn prototypes into production-grade models.


    • Have 5+ years of experience working as data scientist (preferably at a product-driven technology company)
    • Are fluent in Python, R, or Julia
    • Have strong skills in statistics, probability, and/or machine learning, including but not limited to: recommender systems, generalized linear modeling, mixed effects, ensemble models, etc.
    • Are comfortable working with large and messy datasets
    • Are comfortable working with open-ended questions and are willing to perform EDA (Exploratory Data Analysis) at scale to find answers in the data
    • Have experience with big data technologies including SQL, relational databases, and Spark
    • Have great communication skills and are a strong advocate of using data science to drive decisions.


    • Background in quantitative and computational analyses of human cognition, neuroscience or other behavioral sciences
    • Experience in analyzing game behavior data
    • Specific experience modeling longitudinal data.


    • A collaborative culture where promotion from within is encouraged
    • Regular creative learning sessions, skill shares, forums, guest speakers, and workshops
    • Education budget for conferences, professional and skill development
    • Competitive health benefits (medical, dental, vision)Flexible PTO — take the time off when you need it
    • Equinox gym reimbursement (or $ towards the gym or classes of your choice)
    • Catered lunch 4 times a week, fully stocked kitchen & snacks, and dinner if you work late
    • Weekly happy hours and bi-monthly movie nights
    • Game room with Smash tournaments, tons of board games, ping pong, chess, and Legos
    • Team off-sites (past excursions include creative retreats, cooking classes, and terrarium building)
    • We recognize family is important, we host a Bring Your Child to Work Day as well as other kid and pet friendly offsite events
    • Passes to SFMOMA (and a view of their sculpture garden from our office!)

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