Principal Data Scientist, Ads

Reddit's Ads Data Science team is seeking a highly motivated Principal Data Scientist to drive the strategic application of advanced quantitative methods across our advertising platform to advance the intelligence powering the advertiser experience on Reddit. What you'll do • Define the future of Ads Data Science: Own the design and long-term evolution of our core Ads Data Science solutions and infrastructure, building for the next several years of continued scale, revenue growth, and relevance. holders: 12+ years of industry experience in applied science, data science, or machine learning engineering roles • For Ph.D. holders: 8+ years of relevant experience applied science, data science, or machine learning engineering roles • Advanced proficiency in statistical programming (Python or R) and SQL • Experience with statistical analysis, economic modeling, foundational machine learning and/or optimization techniques • Strong understanding of experimental design, causal inference, or A/B testing methodologies • Exceptional problem-solving and communication skills, with a track record of influencing product and engineering partners • Experience working in fast-paced, ambiguous environments with cross-functional teams • Proven experience in influencing large (500+ engineers/data scientists) organizations on technical direction, statistical rigor, and machine learning best practice 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 The base pay range for this position is: During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us.