Open role
Principal Machine Learning Scientist - Search and Personalization
Expedia
2 LocationsPosted Oct 20, 2026 · 4h ago$224K – $339K
Full-time$224K – $339KPrincipalTravel
About this role
Join Expedia Group as a Principal Machine Learning Scientist to drive the future of travel search and personalization. You will lead research, design, and deployment of cutting-edge AI models, including generative AI, for large-scale systems. This is a unique opportunity to build foundational AI technologies in a strategic, AI-first environment.
What we are looking for
6- Lead research and development of advanced ML solutions for search and personalization
- Architect hybrid multi-modal retrieval frameworks
- Develop and optimize multi-stage ranking pipelines using deep learning
- Pioneer sequential recommender systems and intent understanding techniques
- Mentor scientists and collaborate with cross-functional teams
- Build foundational AI systems in a high-impact strategic area
Skills mentioned
5PythonAWSAzureGCPMachine Learning
Work authorization
Must be authorized to work without sponsorship.