Principal Data Scientist

A company is looking for a Principal Data Scientist - Content Ranking.

Key Responsibilities

Build, train, and deploy large-scale machine learning models for real-time content ranking in production

Design and engineer feature pipelines that capture complex user and content signals

Lead rigorous A / B testing and experiment design to ensure sound statistical inference and actionable insights

Required Qualifications

8+ years of professional experience in applied machine learning or data science, with 3+ years in consumer-scale applications

Strong proficiency in Python and SQL

Experience with SageMaker, Airflow, and DBT (or equivalent ML / data orchestration platforms)

Proven track record of training, deploying, and scaling models in production environments

Deep understanding of statistical methods for experimental design and A / B testing