Senior Data Scientist
Core
Senior Data Scientist building statistical and machine learning models to improve content discovery, user engagement, and retention for a streaming news platform.
Role type
Senior IC data scientist (ranking/recommender systems)
Builds
Content discovery algorithms, user engagement models, and GenAI features for news feeds
Domain
Streaming media / News technology
Deliverable
production ML models
Required skills
causal inference, experimental design (A/B testing), statistical modeling, large-scale ranking/recommender systems, Python (pandas, NumPy, scikit-learn, LightGBM, XGBoost), SQL
Preferred skills
deep learning (PyTorch, TensorFlow), orchestration tools (dbt, Airflow), GenAI/LLMs/RAG/Agents
Technologies
Python, pandas, NumPy, statsmodels, scikit-learn, LightGBM, XGBoost, SQL, postgres, snowflake, PyTorch, TensorFlow, dbt, Airflow
Responsibilities
Build statistical and machine learning models to improve content discovery and user engagement; Work closely with ML engineers to translate models and insights into production systems; Apply causal inference methods to understand the impact of potential product changes; Define and build new ML features using text and multimodal embeddings and GenAI; Validate offline learnings with online outcomes through AB testing; Design, execute, and analyze experiments to prove product change attribution