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

Lead Ads Data Science strategy for measurement and signal systems that help prove advertiser value, improve signal quality, and build privacy-aware measurement. Own the scientific vision across experimentation, causal inference, lift/attribution, identity, and privacy-safe 1P/3P measurement. Create trusted evaluation frameworks and scalable diagnostics, partner with Ads Engineering and modeling/ranking teams to operationalize causal models, and mentor senior data scientists to raise technical standards across Ads DS.