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Senior Data Scientist (Ads)

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Onsite

Senior Data Scientist (Ads)

Reddit

Senior Data Scientist (Ads)

Skills

SQL QueriesPythonData SciencePyTorchTensorFlowRMachine LearningHadoop

2 months ago

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Important information


Contract type:

Permanent

Salary:

$190,800 – $267,100 / year

Location:

United States

Work mode:

Onsite

Published on:

17 August 2026

What they need


  • We are looking for a highly motivated and experienced Senior Data Scientist to join our growing Ads Data Science team
  • As a Senior Data Scientist, you will play a key role in developing as well as applying cutting-edge DS models/methods to improve the adoption and performance of our advertising platform through data-driven insights
  • You will work closely with product managers, engineers, and other data scientists to identify opportunities, define metrics, and build solutions that drive significant impact for Reddit
  • Design, develop, and apply DS 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 our advertising platform
  • Collaborate with product managers and engineers to define product requirements and translate them into data science solutions
  • Develop ML models & DS methods to improve anomaly detection, prediction, & 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

Benefits

  • Comprehensive health benefits
  • Flexible vacation & Reddit global days off
  • Family planning funds & 4+ months paid parental leave
  • Personal & professional development funds
  • Paid volunteer time off
  • Workspace & home office benefits- Strong understanding of statistical modeling, machine learning algorithms, causal inference and experimental design
  • 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
  • Experience with large-scale data processing and analysis using tools such as Spark, Hadoop, or Hive; knowledge of BigQuery a plus
  • Excellent communication and presentation skills
  • Proficiency in Python or R and experience with machine learning libraries such as scikit-learn, TensorFlow, or PyTorch
  • For M.S. holders: 5+ years of industry experience in applied science or data science roles
  • Experience with SQL and relational databases
  • Passion for Reddit and the online advertising industry
  • Advanced degree (Masters or Ph.D.) in a quantitative field such as: Statistics, Mathematics, Physics, Economics, or Operations Research
  • Experience with online advertising and ad tech
  • Experience with causal inference and A/B testing
  • Contributions to open-source projects or publications in relevant conferences or journals

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