Senior Data Scientist, Safety Enforcement

About the Role:

• You will own one or more defined enforcement problem areas, translating ambiguous abuse risks and written policy into measurable signals, labels, and detection approaches.
• You will work closely with Product, Engineering, Machine Learning, Policy, Safety Operations, and Threat Intelligence to turn analysis into scaled mitigation.

What You'll Do:

• Discover and characterize abuse by analyzing large-scale behavioral and network data to identify adversarial patterns and gaps in mitigations.
• Define decision-quality standards with evaluation frameworks addressing precision, recall, calibration, coverage, fairness, and operational costs.
• Measure real-world impact through staged rollouts, experiments, and observational analyses, and support incident response on-call.

Who You Are:

• You have a Ph.D. with 4+ years or Master's with 8+ years of relevant experience in a quantitative field, with applied experience in adversarial domains like safety or fraud.
• You are expert in SQL and Python, with strong statistical, experimental design, and ML knowledge, and can deconstruct ambiguous problems.
• You have exceptional communication skills and can convey complex technical concepts to both technical and non-technical partners.

Benefits:

• Comprehensive healthcare benefits and income replacement programs, plus 401k with employer match.
• Global benefit programs for workspace, professional development, and caregiving support, including family planning and gender-affirming care.
• Flexible vacation, paid volunteer time off, and generous paid parental leave.