Staff Data Scientist, Marketing

The role

You will lead the strategy and technical execution of Marketing Intelligence efforts. You will architect how Reddit measures and optimizes marketing spend for B2B and B2C growth.

What you will do

• Define the 2–3 year technical roadmap for marketing measurement.
• Establish North Star metrics and frameworks for marketing budget allocation.
• Build and refine Media Mix Models (MMM) and Multi-Touch Attribution (MTA) systems.
• Design unified frameworks to optimize B2B and B2C growth.
• Lead the design of incrementality testing and geo-holdout experiments.
• Develop methodologies to measure the long-term halo effect of brand marketing.
• Collaborate with Marketing, Growth, and Finance to translate data insights into budget shifts.
• Mentor junior scientists and set technical standards for code quality and statistical rigor.

Required qualifications

• Advanced degree (Master’s or Ph.D.) in Statistics, Economics, Mathematics, or a related quantitative field.
• For M.S. holders: 10+ years of industry experience in marketing science, growth data science, or econometrics.
• For Ph.D. holders: 6+ years of industry experience.
• Deep understanding of the marketing ecosystem, including MMM, Incrementality Testing, and LTV prediction.
• Advanced proficiency in Python or R and SQL.
• Experience building production-grade data pipelines.
• Experience using machine learning for predictive modeling.
• Proven track record of influencing C-suite stakeholders.
• Experience working in fast-paced environments and navigating ambiguity.

Nice to have

• Experience with Bayesian structural time series or causal inference libraries.
• Previous experience in a high-growth marketplace or social media platform.
• A passion for the Reddit community and an understanding of our unique "Ads-as-Content" philosophy.

Benefits

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k with Employer Match
• Global Benefit programs for workspace, professional development, and caregiving support
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation & Paid Volunteer Time Off
• Generous Paid Parental Leave

Before you apply

• Interviews may be recorded, transcribed and summarized by artificial intelligence (AI).
• You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.

About the company

Reddit is a community of communities built on shared interests, passion, and trust. It is one of the internet’s largest sources of information with approximately 130 million daily active unique visitors.