Responsibilities

• Own the strategy, roadmap, and OKRs for the machine learning systems powering Marketing
• Design and deliver production-grade ML models and optimization systems that improve bidding, capital allocation, and ROAS
• Apply rigorous experimentation and measurement to validate business impact
• Recruit, develop, and retain applied machine learning scientists and managers, and support their growth in a complex environment
• Prioritize the team's investment across platform migration, new capabilities, and model innovation
• Build partnerships across Product, Engineering, Finance, Analytics, and Marketing leadership, and align priorities with multiple product teams
• Navigate and influence the EG data platform and ML technology stack in line with company goals
• Contribute to the broader data science and analytics community across EG

Requirements

• Graduate degree in machine learning, computer science, statistics, or a related quantitative field; or equivalent related professional experience. PhD preferred
• 10+ years of relevant professional experience and 5+ years of people management experience, including leading high-performing machine learning teams
• Track record of delivering high-impact machine learning products from concept to production at scale
• Depth in supervised and unsupervised learning, statistics, and experimentation, including A/B testing, power analysis, Bayesian methods, and causal inference
• Command of the ML development lifecycle and MLOps: CI/CD, testing, observability, and reliable releases

Preferred

• Domain experience in bidding, pricing, elasticity modeling, capital allocation, search, personalization, ranking, or recommendation
• Exposure to deep learning, LLMs, retrieval-based systems, and reinforcement learning
• Proficient programming skills: Python preferred, plus Java or Scala, and SQL or equivalent query languages
• Hands-on experience with ML and data engineering technologies such as Spark, Databricks, Kubernetes, and GPU compute
• Discipline in data and feature engineering (quality, lineage, documentation) and in model design with clear objectives, constraints, and risk guardrails
• Proficient communication, collaboration, and mentoring, with the ability to tailor complex concepts to technical and executive audiences

Benefits

• Benefits and perks Expedia Group offers benefits and perks designed to support employees and their families, including medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network (IATAN) membership. Learn more about life at Expedia Group at https://careers.expediagroup.com/life .