# Principal Machine Learning Scientist - Search and Personalization at Expedia Group

- Company: Expedia Group
- What the company does: Expedia Group is your gateway to the world of travel through trusted brands, leading technology, and a global marketplace connecting travelers, partners, and experiences.
- Company website: https://www.expediagroup.com
- Type: Startups (AI role)
- Level: Principal and up
- Location: 2 Locations
- Work setup: On-site
- Posted: 2026-10-20
- Apply by: 2026-12-04
- Apply: https://expedia.wd108.myworkdayjobs.com/en-US/search/job/Washington---Seattle-Campus/Principal-Machine-Learning-Scientist---Search-and-Recommendations_R-108448-1?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/expedia-group-principal-machine-learning-scientist-search-and-personalization/

## About the role

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- PhD, or MS, in Computer Science, Machine Learning, Statistics, Engineering, or a related field, or equivalent professional experience
- 10+ years of related industry experience
- Experience building production-grade search, recommendation or personalization systems
- Strong understanding of intent understanding techniques, retrieval methods, deep learning for recommendations, reinforcement learning, and causal inference
- Proficiency in Python and ML frameworks such as TensorFlow, JAX, or PyTorch
- Experience with large-scale distributed systems and big data technologies (e.g., Spark, Hadoop)


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/expedia-group-principal-machine-learning-scientist-search-and-personalization/