ML Scientist / Machine Learning Engineer
Core
Design and implement advanced algorithms for Ranking, Recommendations, Personalization, and Pricing; build end-to-end infrastructure transforming raw data into production ML systems.
Role type
Senior IC ML Scientist / ML Engineer (Ranking & Personalization)
Builds
Production ML systems for ranking, recommendations, and pricing on eBay's global commerce platform
Domain
E-commerce, Machine Learning
Deliverable
production ML models
Required skills
Python, AWS, Databricks, Zipline, Ranking, Recommendations, Personalization, Pricing, MLOps, Model Serving, Monitoring, ETL/ELT workflows, Inference pipelines, Cost optimization, Scalability
Preferred skills
Agile/Scrum methodologies, E-commerce or payments domain experience, Architecting common libraries and patterns for large-scale applications, Computer science fundamentals, Data structures, Algorithms, Web technologies, Architecture discussions, Design documentation
Technologies
Zipline, AWS, Databricks, JIRA
Responsibilities
Design and implement advanced algorithms for Ranking, Recommendations, Personalization, and Pricing; Develop core ML platform and feature engineering systems; Take responsibility for model serving, monitoring, and evaluating performance metrics; Productionize models by building robust ETL/ELT workflows and inference pipelines; Build comprehensive MLOps systems focusing on deployment automation and observability; Take responsibility for model performance SLOs and system cost optimization
Seniority
Senior, hands-on IC
