Senior Staff Data Scientist – Ads Measurement, Signals & Privacy

Job Overview

As the Senior Staff Data Scientist for Ads Measurement, Signals, and Privacy, you will establish scientific frameworks that guide how advertising effectiveness is measured across Reddit’s advertising platform. You will work closely with engineering, product, legal, marketing science, and business leadership to improve experimentation methodologies, attribution systems, identity evaluation, and privacy-aware measurement capabilities.

This position requires deep expertise in causal inference, experimentation, statistical modeling, large-scale measurement systems, and technical leadership across complex product organizations.

Key Responsibilities

• Define the long-term scientific strategy for advertising measurement, identity, attribution, signal quality, and privacy.
• Develop frameworks that evaluate advertiser value, measurement quality, and signal effectiveness.
• Create measurement methodologies for lift studies, attribution, modeled conversions, identity quality, and privacy-aware analytics.
• Establish objective functions, quality metrics, decision frameworks, and operational guardrails.
• Lead improvements to experimentation methodologies including brand lift, conversion lift, split testing, and incrementality measurement.
• Develop scalable approaches that improve experiment quality, reduce bias, and strengthen causal analysis.
• Partner with engineering teams to operationalize advanced causal models within production environments.
• Measure how identity resolution, signal quality, privacy changes, and modeled conversions influence advertising performance.
• Collaborate with modeling and ranking teams to improve bidding efficiency, return on advertising spend, and customer outcomes.
• Lead privacy-first measurement initiatives that recover useful signals while supporting compliant data practices.
• Develop reusable methodologies, dashboards, quality scorecards, and measurement standards.
• Provide scientific leadership across cross-functional product, engineering, legal, marketing, sales, and executive teams.
• Mentor senior data scientists and promote best practices throughout the organization.

Required Qualifications

• Advanced degree in Statistics, Economics, Mathematics, Computer Science, Operations Research, Physics, or another quantitative discipline, or equivalent industry experience.
• At least 120 months of industry experience in data science, applied science, economics, statistics, or a related quantitative field.
• Deep expertise in advertising measurement, experimentation, causal inference, attribution, marketplace measurement, or advertising optimization.
• Experience leading complex cross-functional initiatives with measurable business impact.
• Strong knowledge of statistical modeling, experimental design, and measurement methodologies.
• Experience defining evaluation metrics, quality frameworks, and decision systems for large-scale products.
• Ability to balance strategic planning with hands-on technical execution.
• Advanced proficiency with SQL.
• Advanced proficiency with Python or R.
• Strong communication skills with the ability to influence senior technical and business leaders.
• Experience mentoring senior individual contributors and improving organizational technical standards.
• Experience using AI tools to improve analytical productivity and accelerate technical prototyping.

Preferred Qualifications

• Experience with advertising identity systems, conversion modeling, signal loss recovery, or identity graph evaluation.
• Experience with lift measurement, conversion lift, brand lift, incrementality testing, marketing mix modeling, multi-touch attribution, or third-party measurement partnerships.
• Experience building privacy-aware measurement systems, clean rooms, aggregation methods, or privacy-preserving modeling.
• Experience partnering with ranking, bidding, or machine learning teams.
• Knowledge of marketplace economics, auction systems, or advertiser-facing measurement products.
• Experience creating organization-wide frameworks, methodology standards, scorecards, or technical training programs.

Core Technical Skills

• Statistical modeling.
• Causal inference.
• Experimentation.
• Advertising measurement.
• Attribution.
• Identity resolution.
• Privacy-preserving analytics.
• SQL.
• Python or R.
• Measurement frameworks.

Work Arrangement

• Remote position within the United States.
• Collaborate closely with product, engineering, legal, marketing science, sales, and executive leadership teams.
• Lead scientific initiatives that influence Reddit’s advertising platform and long-term product strategy.

Compensation and Benefits

The annual base salary range for this position is $232,500 to $325,500.

Eligible employees may also receive restricted stock units (RSUs) and, where applicable, commission-based compensation.

Benefits may include:

• Comprehensive medical, dental, and vision coverage.
• 401(k) plan with employer matching.
• Professional development and workspace benefits.
• Family planning support.
• Gender-affirming healthcare.
• Mental health and coaching resources.
• Flexible vacation policy.
• Paid volunteer time.
• Generous paid parental leave.
• Additional global employee benefit programs.