Senior ML Scientist, Personalization & Recommender AI

Expedia; Greater London; On-site; GBP 110,000 - 170,000; Full time

Job summary

Expedia Group in London seeks a Senior Machine Learning Scientist to join the Lodging Search Ranking team. You will design, develop, and deploy ML models that power personalized lodging ranking and recommendations across Expedia brands.

The role collaborates with analytics, product, and engineering to translate opportunities into scalable, production-ready solutions with a strong focus on experimentation and measurable impact on traveler experiences.

Qualifications

• 8+ years of relevant professional experience.
• Ownership of ML solutions from problem definition to deployment.
• Experience deploying ML in production with cross-functional teams.

Responsibilities

• Design, develop, and apply ML solutions for personalization and ranking.
• Lead end-to-end scientific work from data exploration to production.
• Collaborate with engineers, product, and business stakeholders to integrate models.
• Evaluate and iterate to improve model performance and reliability.
• Stay informed about recommender systems and advancing ML techniques.

Skills

Machine Learning

Recommender Systems

Python

Experimentation

Education

Bachelor's degree in Computer Science

Advanced degree in ML or related field

Tools

TensorFlow

PyTorch

Spark

SQL

Job description

Expedia Group in London seeks a Senior Machine Learning Scientist to join the Lodging Search Ranking team. You will design, develop, and deploy ML models that power personalized lodging ranking and recommendations across Expedia brands.

The role collaborates with analytics, product, and engineering to translate opportunities into scalable, production-ready solutions with a strong focus on experimentation and measurable impact on traveler experiences.