Expedia Group

Expedia Group

Principal ML Scientist

Washington - Seattle Campus, USA · Principal

Sponsorship not specified$231k-$324kDetected 8 hours ago
PythonAlgorithmsSQLCI/CDMachine LearningDeep LearningTensorFlowPyTorchscikit-learnSparkData ScienceNLPLLMsAgentic AIMLOpsStatisticsA/B TestingRecruitingCustomer SupportElectrical EngineeringResearchLeadershipCommunicationMentoring

About the role

  • Here, you'll do meaningful work that helps millions of people discover, book, and experience travel with more ease, confidence, and joy.
  • Employees in this role have the potential to increase their pay up to $369,500.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.

Responsibilities

  • Define and lead the ML strategy for one or more complex product or platform areas (e.g., personalization, search & recommendations, pricing, fraud/risk, or generative AI-powered experiences).
  • Partner closely with engineering to productionize models, improve data and feature pipelines, and ensure reliability, latency, and scalability requirements are met.
  • Lead experiment design and evaluation, including A/B tests and offline evaluations
  • drive decisions with rigorous statistical analysis.
  • Proactively identify opportunities where ML can unlock new customer and business value, build business cases, and influence product and leadership roadmaps.
  • Provide technical leadership and mentorship to other ML scientists, data scientists, and ML engineers through design reviews, pairing, and informal coaching.
  • Collaborate with platform and infra teams to evolve ML tools, feature stores, experimentation platforms, and model monitoring capabilities.
  • Lead experiment design and evaluation, including A/B tests and offline evaluations; drive decisions with rigorous statistical analysis.
  • Join us and build for travelers everywhere.
  • This role sits within Expedia's Traveler & Partner Service Platform (TPSP) Product & Technology organization, which builds the core capabilities and experiences that power customer service across the Expedia ecosystem.

Requirements

  • Bachelor's degree in Computer Science, Statistics, Applied Mathematics, Electrical Engineering, or a related technical field
  • 10+ years of experience in applied ML / data science, including significant experience owning production models in complex domains.
  • Strong Python skills and experience with major ML libraries and frameworks (e.g., PyTorch, TensorFlow, JAX, scikit-learn ), and data tools (e.g., Spark, SQL ).
  • Proven track record of shipping production ML systems at scale and driving measurable product or business impact.
  • Experience designing and interpreting experiments (A/B tests), with solid grounding in statistics (estimation, hypothesis testing, causal inference basics).

Nice to have

  • Experience in one or more relevant domains, such as:
  • Personalization, search & recommendations, ranking, or relevance
  • Marketplace optimization, pricing, or yield management
  • Fraud/risk modeling, anomaly detection
  • Natural language processing / LLMs / generative AI
  • Experience architecting end-to-end ML systems: data/feature pipelines, model training, evaluation, deployment, and monitoring in distributed environments.
  • Demonstrated impact in technical leadership: setting standards, influencing roadmaps across teams, and mentoring senior ICs.
  • Familiarity with MLOps practices and platforms (feature stores, CI/CD for models, model monitoring & alerting).

Compensation

  • $231k-$324k

Benefits

  • Principal Machine Learning Scientist, GenAI

Company info

  • At Expedia Group, we help travelers explore the world, one journey at a time.

Equal opportunity

  • Expedia is committed to creating an inclusive work environment with a diverse workforce.
  • This employer participates in E-Verify.
  • The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee's I-9 to confirm work authorization.
  • All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other characteristic protected by law.

Visa & Work Authorization

  • The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee's I-9 to confirm work authorization.
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This listing is sourced directly from Expedia Group's careers page and normalized into a canonical job model.