Senior Data Scientist (Ads & Demand Optimization)
Core
Design algorithmic frameworks for ad ranking, demand personalization, and promotional budget allocation to maximize ROI for merchants and the platform.
Role type
Senior IC data scientist (ads & demand optimization)
Builds
Ads ranking systems, automated promo assignment mechanisms, and auction mechanics
Domain
Marketplace economics, advertising technology, causal inference
Deliverable
production ML models
Required skills
causal inference, uplift modelling, experimental design, ads auction theory, statistical modelling, machine learning, mathematical optimization, Python, SQL, Spark
Preferred skills
experience in ads ranking, recommendation systems, or marketplace optimization
Technologies
Python, SQL, Spark
Responsibilities
Develop data science methodologies for ad ranking and automated promo assignment; Deploy uplift models and causal inference frameworks to measure promotional incrementality; Improve ads auction mechanics and budget allocation; Design experimentation frameworks (A/B testing, switchback, bandits) to evaluate CTR, CVR, and incremental GMV; Partner with Product and Engineering to translate marketplace challenges into data science roadmaps
Seniority
Senior, hands-on IC
