Senior Data Scientist, Trust & Safety and Content Quality

As a Senior Data Scientist at Pinterest, you will lead the development of measurement methodologies to track Trust & Safety policy violations across complex user interactions.

Responsibilities:

• Design and develop ML-assisted sampling techniques to accurately measure the prevalence of unsafe content
• Apply rigorous statistical methods to calculate prevalence rates for specific Trust & Safety policy violations
• Build large-scale data pipelines to aggregate user-generated queries and system responses
• Partner cross-functionally to orchestrate offline dashboards and online production workflows for continuous safety monitoring
• Collaborate with Trust & Safety teams to translate written safety policies into unified LLM prompts
• Define and evangelize what constitutes high-quality content across Pinterest's surfaces
• Analyze and model the end-to-end content distribution funnel to inform how high-quality content is selected and surfaced
• Lead the development of improved methodologies for evaluating the quality of links to external websites
• Develop best practices for instrumentation and experimentation
• Leverage AI to seek faster execution and explore alternative options

Requirements:

• 5+ years of experience analyzing data in a fast-paced environment
• Extensive experience solving analytical problems using quantitative approaches in Machine Learning, Statistical Modeling, Forecasting, Econometrics, or related fields
• Strong interest and hands-on experience in platform safety, prevalence measurement, content quality measurement, or Trust & Safety
• Deep familiarity with the measurement challenges of a complex ecosystem
• Experience designing and calibrating measurement frameworks and managing complex logging tables
• Experience using machine learning and deep learning frameworks
• Strong quantitative programming and data manipulation skills
• A scientifically rigorous approach to analysis and data
• Ability to drive ambiguous measurement projects end-to-end
• Excellent written and verbal communication skills
• A team player who is able to partner with cross-functional leadership