Senior Data Scientist, Referrals

About the role We are hiring a Sr. Data Scientist, Referrals to help us understand how our referral investment drives member acquisition and long-term value. Unlike traditional paid channels, referrals operate through member-to-member advocacy, dual-sided incentives, and viral loops, requiring a distinct measurement lens that accounts for organic bleed, incentive sensitivity, and long-term referred member behavior. As our Sr. Data Scientist, Referrals, you will partner closely with the Referrals team to measure, optimize, and scale spend across the referral channel. You will bring expertise in campaign sizing, operational planning, and channel forecasting, helping the team plan confidently and allocate resources effectively. You will bring rigor to how we evaluate incrementality, attribution, and efficiency, moving us to a defensible view of what our referral dollars actually deliver. The base salary offered for this role and level of experience will begin at $133,000 and up to $185,000. Full-time employees are also eligible for a bonus, competitive equity package, and benefits. The actual base salary offered may be higher, depending on your location, skills, qualifications, and experience. In this role, you can expect to Partner with Referrals to define KPIs and measurement frameworks across campaigns and audiences Size and scope referral campaigns in partnership with marketing, product and finance: translating acquisition goals into expected spend, volume, and ROI projections ahead of launch, and supporting operational planning for campaign execution Build and maintain forecasting models for the referral channel, projecting member acquisition volume, cost, and downstream LTV under different spend scenarios, seasonality assumptions, and campaign configurations Develop attribution approaches that reconcile platform-reported performance with observed member behavior, accounting for the complexity of dual-sided referral incentives and organic word-of-mouth overlap. De