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Senior Data Scientist, Ads

Reddit· Data Science
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Hybrid (US remote-friendly)$190.8k - $267.1kFull-timePosted 2mo ago

About the role

Senior Data Scientist role within Reddit's Ads Data Science team focused on applying cutting-edge data science methods to improve the Reddit ads platform, collaborate with product and engineering, and mentor junior data scientists.

Responsibilities

  • Design, develop, and apply DS solutions to inform improvements in advertiser experience and Reddit's ad platform
  • Analyze large-scale datasets to identify trends, patterns, and insights that can be used to improve the effectiveness of our advertising platform
  • Collaborate with product managers and engineers to define product requirements and translate them into data science solutions
  • Develop ML models & DS methods to improve anomaly detection, prediction, & pattern recognition
  • Communicate findings and recommendations to stakeholders across the organization
  • Stay up-to-date on the latest advancements in machine learning and data science
  • Mentor and guide junior data scientists on the team

Qualifications

  • Advanced degree (Masters or Ph.D.) in Statistics, Mathematics, Physics, Economics, or Operations Research
  • For MS holders: 5+ years of industry experience in applied science or data science roles
  • For PhD holders: 4+ years of industry experience in applied science or data science roles
  • Platform experience and a deep understanding of the ads ecosystem
  • Strong understanding of statistical modeling, machine learning algorithms, causal inference and experimental design
  • Experience with large-scale data processing and analysis using Spark, Hadoop, or Hive; knowledge of BigQuery a plus
  • Proficiency in Python or R and experience with machine learning libraries such as scikit-learn, TensorFlow, or PyTorch
  • Experience with SQL and relational databases
  • Excellent communication and presentation skills
  • Passion for Reddit and the online advertising industry

Skills

Required:DS design and modelingLarge-scale data analysisCollaboration with product/engineeringML & DS methodsCommunication

Benefits

  • Comprehensive Healthcare Benefits and Income Replacement Programs
  • 401k with Employer Match
  • Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave
Last updated Oct 7, 2026. Interested? Apply on the company site.
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