Senior Data Scientist, Safety Enforcement — Remote

New York tech; United States; Remote; USD 191,000 - 267,000; Full time

Benefits offered by this job

Healthcare benefits

401k with employer match

Parental leave

Job summary

Reddit, Inc. is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own enforcement problems end-to-end, from framing and labeling to model or rule development and rollout.

You will work with Product, Engineering, Policy, and Safety Operations to convert policy into measurable targets and to design experiments that reduce harm while managing false positives. This role is remote-friendly within the United States.

Qualifications

• Ph.D. with 4+ years OR Master’s with 8+ years in data science or related quantitative role.
• Applied experience in safety, enforcement, fraud, or adversarial domains.
• Proficient in SQL and Python for production-grade analytics.
• Strong background in statistics, experiment design, and ML techniques.
• Knowledge of evaluating real-world decision systems: sampling, label quality, class imbalance, calibration, drift, monitoring.

Responsibilities

• Own the enforcement lifecycle from framing and signal discovery through labels, rules, rollout, monitoring, and iteration.
• Analyze large-scale behavioral, content, and network data to identify adversarial patterns and gaps in mitigations.
• Develop and evaluate models, rules, and dashboards using ML or GenAI methods.
• Define evaluation standards for precision, recall, calibration, bias, and operational costs.
• Collaborate with Engineering and Policy teams to deploy production-ready solutions.

Skills

Statistical analysis

Experiment design

Causal modeling

ML techniques

Communication skills

Education

Ph.D. or Master’s in Data Science/Statistics/CS/OR

Tools

SQL

Python

Job description

Reddit, Inc. is seeking a Senior Data Scientist to join Safety Enforcement Data Science. You will own enforcement problems end-to-end, from framing and labeling to model or rule development and rollout.

You will work with Product, Engineering, Policy, and Safety Operations to convert policy into measurable targets and to design experiments that reduce harm while managing false positives. This role is remote-friendly within the United States.