Staff Data Scientist – Ads Measurement, Signals, Privacy

Reddit, Inc.

Staff Data Scientist in Ads Analysis focusing on identity and measurement methodologies at Reddit. Innovating solutions for advertising performance and collaborating across teams.

Posted 7/17/2026full-timeRemote • 🇺🇸 United StatesLead💰 $217,000 - $303,900 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Expertise in statistical modeling and experimentation methodologies, with a strong focus on identity resolution and predictive performance in the advertising ecosystem. Proven ability to collaborate across functions and influence technical strategies while maintaining high standards in data science practices.

Highest-signal resume keywords

Advanced Degree in Statistics, Mathematics, Physics, Economics, or Operations ResearchStatistical Programming (Python or R) and SQLMeasurement and Experimentation at ScalePredictive Modeling with Signal LossIdentity Graph Creation and Resolution Methodology

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Statistical ModelingExperimental DesignCausal InferenceA/B Testing MethodologiesMachine Learning TechniquesOptimization TechniquesData ScienceIdentity ResolutionQuantitative AnalysisData Visualization

Soft Skills

Problem-SolvingCommunicationInfluencing SkillsCollaborationMentoring

Industry Keywords

Ads EcosystemIdentity GraphLift MethodologiesAttributionPredictive PerformanceBidding EfficiencyROASCross-Functional CollaborationStatistical RigorHigh-Velocity Testing

Tech Stack

Tools & technologies

PythonSQL

About the role

Key responsibilities & impact

Design the Future of Ads Identity: Develop/employ probabilistic models for identity resolution. Design the methodology that links on-platform and off-platform actions to maximize addressability while honoring privacy.
Advance Lift Methodologies & Experimentation: Own the statistical rigor behind Reddit’s Brand and Conversion Lift products. Innovate experimental design and develop infrastructure that supports large-scale, high-velocity, low-bias testing for advertisers.
Maximize Signal for Predictive Performance: Define the strategy for new signal sources. You will mathematically quantify the value of these signals and work with modeling teams to incorporate them into predictive models, directly improving bidding efficiency and ROAS.
Define Ground Truth & Evaluation Frameworks: Solve the industry-wide challenge of validating identity and measurement. Design the objective functions and truth sets used to train our models and measure the incremental impact of our identity graph.
Lead Through Cross-Functional and Technical Influence: Collaborate deeply with engineering, product, and sales to align on strategic goals, translate insights into action, and drive execution. Set a high technical bar by mentoring others and championing best practices across modeling, experimentation, and measurement.

Requirements

What you’ll need

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 areas:
Measurement & Experimentation at Scale (with focus on lift and attribution)
Identity Graph Creation & Resolution Methodology and Infrastructure
Predictive Modeling with Signal Loss
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, with a track record of influencing product and engineering partners
Experience working in fast-paced, ambiguous environments with cross-functional teams

Benefits

Comp & perks

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