ML Scientist II — Scalable Recommender Systems

Expedia Group is seeking a Machine Learning Scientist II to build end-to-end ML solutions for personalized recommendations, learning to rank, and relevance optimization in Madrid. The role emphasizes scalable models, cross-functional collaboration, and a test-and-learn culture.
The candidate should have a PhD or Master’s in a relevant field, strong Python/PySpark skills, experience with ML libraries, and familiarity with Hadoop/Spark and AWS/GCP.