Senior Data Scientist, Safety Enforcement (Remote)

Reddit; Oregon; Hybrid; USD 191,000 - 267,000; Full time

Benefits offered by this job

Healthcare benefits

401k with employer match

Global benefit programs

Family planning support

Gender-affirming care

Mental health & coaching

Flexible vacation & paid volunteer PTO

Parental leave

Job summary

Reddit is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own defined enforcement problem areas and translate policy into measurable signals, labels, detection approaches, and evaluation plans while collaborating with Product, Engineering, ML, Policy, Safety Operations, Threat Intelligence, and Safety Insights teams.

This is a hands-on role involving modeling, rule evaluation, threshold tuning, guardrails, and incident response support, including occasional

Qualifications

• Ph.D. with 4+ years or Master's with 8+ years in a quantitative field.
• Experience in safety, enforcement engineering, fraud, or adversarial domains.
• SQL and Python to write production-grade analytical code and data pipelines.
• Strong statistics, experiment design, causal modeling, and ML techniques.
• Experience evaluating real-world decision systems, including calibration and monitoring.
• Ability to decompose complex problems and drive decisions with cross-functional teams.
• Exceptional communication to explain technical concepts to varied stakeholders.

Responsibilities

• Own the enforcement lifecycle from problem framing to rollout and monitoring.
• Analyze abuse patterns by mining large-scale data for adversarial signals.
• Build and evaluate models, classifiers, and rules using ML or GenAI methods.
• Define evaluation standards for precision, recall, calibration, and robustness.
• Collaborate with Engineering, Policy, Safety Operations, and Trust teams to deploy solutions.

Skills

Communication

Problem Solving

Adversarial ML

Collaboration

Education

Ph.D. with 4+ years

Master's with 8+ years

Tools

SQL

Python

Data Pipelines

Job description

Reddit is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own defined enforcement problem areas and translate policy into measurable signals, labels, detection approaches, and evaluation plans while collaborating with Product, Engineering, ML, Policy, Safety Operations, Threat Intelligence, and Safety Insights teams.

This is a hands-on role involving modeling, rule evaluation, threshold tuning, guardrails, and incident response support, including occasional