Data Scientist 5 - Ads Experimentation

Role overview A senior Data Scientist role supporting advertising experimentation, with a remote setup serving the New York area. The position centers on designing, analyzing, and interpreting experiments that shape advertising product decisions. The numerical level in the title indicates a senior individual contributor role focused on technical leadership rather than people management.

Responsibilities - Design and analyze A/B tests and other experiments across the ads funnel - Develop causal inference and measurement methodologies suited to advertising products - Partner with product, engineering, and analytics teams to define metrics and success criteria - Build reusable tooling and frameworks for experimentation at scale - Communicate findings and recommendations to technical and business stakeholders

Requirements - Advanced degree or equivalent experience in statistics, computer science, or a related quantitative field - Deep expertise in experimental design, causal inference, and statistical modeling - Strong programming skills in SQL and a language such as Python or R - Experience working with large-scale data pipelines and experimentation platforms - Ability to translate ambiguous business questions into rigorous analyses

Nice to have - Background in advertising, marketing analytics, or marketplace experimentation - Familiarity with geo-experiments, switchback designs, or quasi-experimental methods