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Reddit

Senior Data Scientist, Ads

Reddit
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remote senior full-time Remote - British Columbia, Canada

First indexed 18 Jun 2026

Description

Reddit is seeking a highly motivated and experienced Senior Data Scientist to join its growing Ads Data Science team.

As a Senior Data Scientist, you will play a key role in developing and applying cutting-edge data science models and methods to improve the adoption and performance of Reddit's advertising platform through data-driven insights.

Responsibilities:

  • Design, develop, and apply data science solutions to inform improvements in advertiser experience and Reddit's ad platform
  • Analyze large-scale datasets to identify trends, patterns, and insights that can be used to improve the effectiveness of the advertising platform
  • Collaborate with product managers and engineers to define product requirements and translate them into data science solutions
  • Develop machine learning models and data science methods to improve anomaly detection, prediction, and pattern recognition
  • Communicate findings and recommendations to stakeholders across the organization
  • Stay up-to-date on the latest advancements in machine learning and data science
  • Mentor and guide junior data scientists on the team

Qualifications:

  • Advanced degree (Masters or Ph.D.) in a quantitative field such as Statistics, Mathematics, Physics, Economics, or Operations Research
  • For M.S. holders: 5+ years of industry experience in applied science or data science roles
  • For Ph.D. holders: 4+ years of industry experience in applied science or data science roles
  • Platform experience and a deep understanding of the ads ecosystem
  • Strong understanding of statistical modeling, machine learning algorithms, causal inference, and experimental design
  • Experience with large-scale data processing and analysis using tools such as Spark, Hadoop, or Hive; knowledge of BigQuery a plus
  • Proficiency in Python or R and experience with machine learning libraries such as scikit-learn, TensorFlow, or PyTorch
  • Experience with SQL and relational databases
  • Excellent communication and presentation skills
  • Passion for Reddit and the online advertising industry

Benefits:

  • 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
  • Comprehensive Medical Benefits & Health Care Spending Account
  • Registered Retirement Savings Plan with matching contributions
  • Income Replacement Programs
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/reddit/jobs/7607121