Sr. Staff Data Scientist - Ads Measurement, Signals, Privacy

Reddit is hiring a Senior Staff Data Scientist for its remote Ads Data Science team to shape how the company measures advertising impact and improves signal quality while accounting for privacy constraints. The role focuses on experimental design, causal inference, identity, attribution, and privacy-aware measurement across first-party and third-party systems. It calls for someone who can set technical direction, work across teams, and help guide executive-level decisions and industry practices. This position suits an experienced data scientist with strong expertise in experimentation and measurement who is comfortable influencing strategy in a fast-changing ad-tech environment.