CareerPlan

Senior Data Scientist - Experimentation

New York City, United States of AmericaFull-time2026-10-21 → 2026-11-10

Core

Design and build a new generation of experimentation platform for the Ads Platform organization to enable safe, data-driven feature launches and measure treatment effects.

Role type

Senior IC machine learning engineer and statistician (experimentation)

Builds

Scalable experimentation platform, data pipelines, and automated reporting tools for Search Ads in App Store and Apple News

Domain

Advertising technology, marketplace dynamics, causal inference

Deliverable

production ML models

Required skills

SQL, Python, Pyspark, Scala, causal inference, A/B testing infrastructure, randomized control trials, regression, propensity score matching, Diff in Diff, regression discontinuity, instrumental variables, data engineering, observability

Preferred skills

Advanced degree in CS/Statistics/Applied Math, 6+ years building scalable applications, marketplace experimentation experience, measuring advertiser value

Technologies

SQL, Python, Pyspark, Scala

Responsibilities

Design and analyze controlled experiments to estimate incremental impact; Lead design and maintenance of scalable data pipelines; Provide expert technical guidance on statistical techniques and experiment design; Conduct rigorous end-to-end analyses to uncover insights; Mentor junior engineers and scientists

Seniority

Senior, hands-on IC