Staff Data Scientist - Ads Measurement, Signals, Privacy

The role

You will advance the intelligence powering the advertiser experience on Reddit. You will specialize in measurement, identity, and signal quality within the Ads organization.

What you will do

• Develop or employ probabilistic models for identity resolution.
• Design methodology to link on-platform and off-platform actions.
• Own statistical rigor behind Brand and Conversion Lift products.
• Innovate experimental design and infrastructure for testing.
• Define strategy for new signal sources.
• Quantify signal value and work with modeling teams to improve bidding efficiency and ROAS.
• Design objective functions and truth sets to validate identity and measurement.
• Collaborate with engineering, product, and sales to align on strategic goals.
• Mentor others and champion best practices across modeling, experimentation, and measurement.

Required qualifications

• Advanced degree (Master's or Ph.D.) in Statistics, Mathematics, Physics, Economics, or Operations Research
• For M.S. holders: 10+ years of industry experience in applied science or data science roles
• For Ph.D. holders: 6+ years of industry experience in applied science or data science roles
• Deep understanding of the ads ecosystem
• Demonstrated expertise in at least one of the following: Measurement & Experimentation at Scale, Identity Graph Creation & Resolution Methodology and Infrastructure, or Predictive Modeling with Signal
• Advanced proficiency in statistical programming (Python or R) and SQL
• Experience with machine learning or optimization techniques
• Strong understanding of experimental design, causal inference, or A/B testing methodologies
• Exceptional problem-solving and communication skills
• Experience working in fast-paced, ambiguous environments with cross-functional teams

Benefits

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k with Employer Match
• Global Benefit programs
• 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 home to the most open and authentic conversations on the internet.