Remote Senior Data Scientist, Safety Enforcement

Remote; San Francisco (CA); Remote; USD 180,000 - 240,000; Full time

Benefits offered by this job

Comprehensive Healthcare Benefits and

401k with Employer Match

Global Benefit programs

Family Planning Support

Mental Health & Coaching Benefits

Job summary

Reddit is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own enforcement problem areas, translate policy into measurable signals, labels, and evaluation plans, and collaborate with Product, Engineering, ML, Policy, and Safety Operations to scale mitigation.

This hands-on role involves prototyping models, tuning thresholds, and designing rigorous evaluation with human oversight. Remote-friendly within the United States, with potential office access as needed.

Qualifications

• Ph.D. with 4+ years OR Master’s with 8+ years in Data Science, Applied Science, Economics, or related field.
• Applied experience in safety, enforcement engineering, fraud, or similar adversarial domains.
• Expertise in SQL and Python to write production‑grade, reusable analytical code and data pipelines.
• Strong background in statistical analysis, experiment design, causal modeling, and ML techniques.
• Experience evaluating real‑world decision systems and monitoring.
• Ability to deconstruct ambiguous problems and drive decisions with cross‑functional teams.
• Exceptional communication skills for technical and non‑technical stakeholders.

Responsibilities

• Own the enforcement lifecycle from problem framing to rollout and monitoring.
• Discover and characterize abuse by analyzing large-scale data.
• Build and evaluate decision systems using ML or rules.
• Define evaluation standards: precision, recall, calibration, fairness, and costs.
• Ship with engineering partners to productionize approaches.
• Translate policy into modelable targets and reviewer workflows.
• Measure real-world impact with staged rollouts and experiments.
• Respond to incidents and drive post‑incident improvements.
• Scale the team’s datasets, tooling, and documentation.
• Stay ahead of threat landscape with advanced methods.

Skills

Statistics

Experiment design

Causal modeling

ML techniques

Communication

Education

Ph.D. with 4+ years OR Master’s with 8+ years in Data Science/related field

Tools

SQL

Python

Job description

Reddit is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own enforcement problem areas, translate policy into measurable signals, labels, and evaluation plans, and collaborate with Product, Engineering, ML, Policy, and Safety Operations to scale mitigation.

This hands-on role involves prototyping models, tuning thresholds, and designing rigorous evaluation with human oversight. Remote-friendly within the United States, with potential office access as needed.