Fliff - Senior Data Scientist
Requirements
• 5+ years of experience as a data scientist, marketing analyst, or growth analyst, ideally in a consumer app, gaming, fintech, or subscription business • Strong SQL skills and comfort working with large, messy behavioral datasets • Hands-on experience building predictive models in Python (LTV, churn, propensity, segmentation, etc.) using libraries like scikit-learn, XGBoost, or similar • Experience evaluating the long-term and incremental impact of marketing and promotional spend: you understand the difference between who responded and who was actually influenced • Working knowledge of causal inference methods (diff-in-diff, synthetic control, CausalImpact, uplift modeling, propensity scoring) and when to apply each • Solid grounding in marketing measurement concepts: attribution (MTA, MMM basics), incrementality, holdouts, cohort analysis, and unit economics (CAC, LTV, payback) • Experience with experimentation: designing tests, sizing them, and reading them out with statistical rigor • Proficiency with at least one BI/visualization tool (Looker, Tableau, Mode, Sigma, etc.) • Strong communication skills: you can explain a model to a marketer and a campaign result to a CFO with equal clarity • A bias toward action: you'd rather ship a useful 80% answer this week than a perfect one next quarter • Experience with mobile measurement partners (AppsFlyer, Adjust, Singular) and/or paid media APIs • Familiarity with cloud data warehouses (Snowflake, BigQuery, Redshift) and dbt • Background in gaming, sports betting, fantasy sports, or another high-velocity consumer category • Experience modeling promo and bonus economics in a gaming, fintech, or e-commerce context
Responsibilities
• Build and maintain predictive models that drive marketing strategy, including player LTV, churn risk, CAC payback, and propensity-to-convert models • Own marketing attribution and incrementality analysis across paid channels (Meta, Google, TikTok, affiliates, influencers, etc.), helping the team understand what's actually driving growth • Quantify the causal impact and long-term business value of promotions, bonuses, and lifecycle campaigns, moving beyond surface-level engagement metrics to measure true incremental retention, monetization, and LTV impact • Partner with growth marketers to design, run, and read out experiments: A/B tests, geo-tests, holdout studies, and creative tests • Develop and maintain dashboards and self-serve reporting that give marketing leaders real-time visibility into channel performance, cohort behavior, promo ROI, and funnel health • Clean, structure, and validate data across our marketing stack (ad platforms, MMP, internal event data, CRM) and partner with data engineering to improve our data models where needed • Translate complex analyses into clear, actionable recommendations for non-technical stakeholders • Continuously look for opportunities to automate, improve, and scale how the marketing team uses data
Benefits
• Competitive compensation package, including base salary, benefits, and equity. The annual salary for this role ranges from $135,000 - $160,000 • Unlimited/Flexible paid time off. • Health benefits, including medical, dental, and vision coverage, as well as generous parental leave. • Employee-sponsored 401(k). • $500 work-from-home stipend + Equipment & Accessories. • Opportunity for professional development in a dynamic, global setting. • A supportive, collaborative, and knowledge-driven workplace. An engaging and challenging role with the freedom to innovate and develop effective solutions. • We are a multinational company with our headquarters based in Philadelphia, and offices in New York, Austin, and Sofia, Bulgaria. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is welcoming and friendly, and the work that we do is always interesting and rewarding. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is: • Welcoming and Friendly • We want to reflect the diversity of the cities we serve. By creating an inclusive culture where everyone can thrive, we’ll make Fliff better for employees and customers alike. • Lively and Creative • We respect and value each other’s ideas, experience and expertise. There is no such thing as a bad idea; only ideas that are executed and ideas that are discarded after consideration. • Stimulating and Rewarding • We know bright minds love a challenge, and we understand your desire to see your hard work pay off. We’ll make sure your daily tasks align with your career ambitions as we grow together. • Equal Employment Opportunity Statement
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