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Expedia Group

Senior Data Scientist (Machine Learning Scientist) - Traveler Engagement & Loyal

Expedia Group, San Jose, California, United States, 95199

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Senior Data Scientist (Machine Learning Scientist) - Traveler Engagement & Loyalty Team Senior Machine Learning Scientist - Traveler Engagement & Loyalty team (San Jose)

Introduction to the Team: Expedia Technology teams partner with our Product teams to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction.

The Traveler Engagement & Loyalty team at Expedia is at the forefront of innovation in AI-driven recommendation systems. We're dedicated to enhancing customer experiences, increasing engagement, and strengthening traveler relationships through cutting-edge machine learning solutions. Our work directly impacts millions of travelers worldwide, shaping their journey from dreaming to booking and beyond.

Join a newly formed Machine Learning Science team at Expedia Group focused on transforming Customer Relationship Management (CRM) through intelligent, personalized outbound communications. From crafting tailored travel recommendations to optimizing engagement strategies, your work will directly influence millions of travelers globally. This is a rare opportunity to build foundational systems in a high-impact domain, backed by Expedia’s AI-first vision.

Responsibilities

Build and optimize recommendation models for CRM use cases, including personalized email campaigns and retention strategies

Apply deep learning and causal inference to sparse, noisy, and dynamic customer interaction data

Design and analyze A/B experiments to validate model performance and drive product decisions

Collaborate with ML Engineers to deploy models at scale, ensuring robustness and reliability in production environments

Translate business objectives into measurable machine learning goals aligned with customer engagement outcomes

Stay current with advancements in recommendation research, deep learning architectures, and personalization systems

Mentor junior scientists and engineers, sharing best practices in ML modeling, experimentation, and deployment

Minimum Qualifications

PhD, MS, or BS in Computer Science, Machine Learning, Statistics, Engineering, or a related field; or equivalent professional experience

8+ years of related industry experience

Experience building production-grade recommendation or personalization systems

Strong understanding of collaborative filtering, deep learning for recommendations, reinforcement learning, and causal inference

Proficiency in Python and ML frameworks such as TensorFlow or PyTorch

Experience with distributed systems like Apache Spark

Familiarity with A/B testing and experimentation methodologies

Ability to work with large-scale, real-world data with attention to bias, fairness, and privacy

Excellent communication skills for both technical and non-technical audiences

Preferred Qualifications

Experience in the travel or e-commerce industry

Familiarity with cloud platforms (AWS, GCP, Azure)

Publications in top-tier ML conferences or journals

Contributions to open-source ML projectsExperience in personalization systems or CRM-focused ML applications

Experience taking models from prototype to production in collaboration with Machine Learning Engineering teams

Seniority level Mid-Senior level

Employment type Full-time

Job function Analyst, Information Technology, and Product Management

Industries Software Development, Data Infrastructure and Analytics, and Technology, Information and Media

Benefits

Medical insurance

Vision insurance

401(k)

Paid maternity leave

Paid paternity leave

Disability insurance

Tuition assistance

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