Senior Data Scientist, Ads Integrity
Core
Lead ads fraud detection and scaled enforcement within Reddit's Safety organization to protect users and advertisers from harmful content and abuse.
Role type
Senior IC data scientist (ads integrity/fraud detection)
Builds
Scalable detection and enforcement pipelines, statistical/ML/GenAI models, and evaluation frameworks for ads fraud.
Domain
Internet platform safety, advertising integrity, fraud detection
Deliverable
production ML models | product features
Required skills
fraud detection methods, statistical analysis, Python, SQL, graph/network analysis, anomaly detection, LLM application, feature engineering, threshold calibration, drift detection
Preferred skills
experience in financial fraud or account risk, cross-functional partnership with Product/Engineering, AI/LLM workflows
Technologies
Python, SQL, GenAI, LLMs
Responsibilities
Define fraud taxonomies and evaluation frameworks; analyze complex datasets to uncover fraud patterns; design and develop scalable detection pipelines; own the full detection lifecycle from backtesting to retirement; build ML/GenAI models for fraud detection; balance fraud loss and business goals; partner across teams to shape strategy and roadmaps.
Seniority
Senior, hands-on IC with strategic ownership
