Principal Data Scientist - Safety

Overview Roblox is hiring a Principal Data Scientist to lead measurement, experimentation, and causal inference work for content safety. The role focuses on harmful UGC, moderation effectiveness, and cross-functional strategy for safer platform experiences. Responsibilities - Establish and monitor prevalence measurement methodologies for harmful content and behavior on the platform - Develop and validate ground-truth datasets for harmful user-generated content and violative behaviors - Analyze emerging threat landscapes and recommend where detection and moderation resources should be invested - Design, implement, and analyze experiments for new moderation and safety enforcement features - Apply causal inference methods to measure the effectiveness and systemic impact of safety initiatives - Communicate findings and recommendations to leadership and cross-functional partners - Partner with ML and Data Engineering teams on statistically sound measurement and detection frameworks Requirements - 10+ years of industry experience in data science, economics, analytics, or machine learning engineering - 7+ years of experience with scripting languages and big-data tools such as Python, R, SQL, Hive, Spark, and Airflow - Knowledge of machine learning and deep learning through formal training or industry experience - Ability to apply creative first-principles reasoning to ambiguous problems - Experience with large-scale safety or moderation systems and user-generated content platforms - Advanced degree and/or PhD in a quantitative field such as Statistics, Computer Science, Physics, Applied Math, or Economics Benefits - Eligible for equity compensation - Annual salary range for San Mateo, CA: $321,230 to $373,680 USD - Full-time office roles are onsite Tuesday through Thursday, with optional presence Monday and Friday - Roblox offers benefits as described on the company careers page How To Apply - Apply via the Roblox careers page for this role Source https://careers.roblox.com/jobs/7411636?gh_jid=7411636