Sr Applied Scientist, Recommendations
Core
Build and deploy state-of-the-art recommendation systems (retrieval, ranking, LLMs) at scale for eBay's global e-commerce platform to personalize buyer experiences and drive revenue.
Role type
Senior Applied Scientist (Recommendations)
Builds
Personalized item recommendations, deep learning retrieval systems, ranking models, and MLOps pipelines for web and mobile apps.
Domain
E-commerce, AI/ML, Large Language Models, Big Data
Deliverable
production ML models
Required skills
Deep learning, Natural Language Processing (NLP), Industrial recommender systems, Big data processing (Hadoop, Spark, Pyspark), Cloud services, Object-Oriented programming (Scala, Java)
Preferred skills
Experience with Large Language Models (LLMs), Emerging AI paradigms
Technologies
Hadoop, SQL, Spark, Pyspark, Cloud services
Responsibilities
Build data pipelines for user input, recall, ranking, training, and inference; Track AI trends and apply innovative techniques to unstructured multimodal data; Develop and deploy innovative recommendation models; Deploy big data technology for large-scale AI applications; Drive marketplace GMB and advertising revenue via organic and sponsored recommendations.
Seniority
Senior, hands-on IC