Senior Data Scientist, Ads Integrity & Fraud (Remote)

EngineersOfAI; San Francisco (CA); Remote; USD 150,000 - 230,000; Full time

Job summary

Reddit is seeking a Senior Data Scientist to lead ads fraud detection and scaled enforcement within Safety. You will partner with Ads Product, Engineering, ML, Operations, Policy, Legal, and fellow data scientists to define rigorous standards, build signals, models, and enforcement pipelines.

This remote-friendly role offers high impact in a greenfield space, ownership, and growth as Reddit’s ads integrity program matures.

Qualifications

• Relevant experience in Data Science, Applied Science, or a related quantitative role, preferably in ads fraud, financial fraud, or account risk, Trust & Safety, platform integrity, or enforcement engineering.
• Ph.D. or M.S. degree in Statistics, Economics, Computer Science, Applied

Responsibilities

• Lead detection and measurement strategies for ads fraud, defining fraud taxonomies, labels, and evaluation frameworks.
• Analyze large datasets to uncover fraud patterns and translate findings into detection requirements.
• Design scalable fraud detection/enforcement pipelines with ML and engineering teams.
• Own the full detection lifecycle: backtesting, offline/online evaluation, launch validation, monitoring, and retirement.
• Build ML and GenAI-enabled models to improve fraud detection and investigator efficiency.
• Balance risk, user experience, and business goals when setting thresholds and enforcement strategies.
• Collaborate across Ads and Safety to shape strategy and ensure governance and compliance.
• Translate complex analyses into clear narratives for technical and non-technical stakeholders.

Skills

Ads fraud knowledge

Data analysis

Machine learning

Stakeholder communication

Education

PhD or MS in Statistics/CS/Economics/Applied

Job description

Reddit is seeking a Senior Data Scientist to lead ads fraud detection and scaled enforcement within Safety. You will partner with Ads Product, Engineering, ML, Operations, Policy, Legal, and fellow data scientists to define rigorous standards, build signals, models, and enforcement pipelines.

This remote-friendly role offers high impact in a greenfield space, ownership, and growth as Reddit’s ads integrity program matures.