
Principal Machine Learning Scientist – Generative AI, Customer Experience
Expedia Group
full-time
Posted on:
Location Type: Hybrid
Location: Seattle • California • Washington • United States
Visit company websiteExplore more
Salary
💰 $224,000 - $313,500 per year
Job Level
About the role
- Configure, maintain, and optimize storage and processing environments (cloud, on-premises, cluster management, etc.)
- Build production-grade data and machine learning pipelines that support batch and streaming applications
- Advocate for software design best practices and demonstrate your ability to construct robust data and machine learning pipelines
- Perform applied research to consistently achieve desired solution performance and improve organizational capabilities
- Demonstrate an in-depth understanding of all aspects of learning theory
- Support leaders in setting up frameworks for the machine learning development lifecycle and devise machine learning strategies
- Advise business leaders in complex settings to create and enable robust machine learning solutions with high impact, at an expert level
- Lead and mentor others in all machine learning activities
- Utilize deep expertise in LLM fine-tuning and prompt engineering (e.g., OpenAI APIs, Hugging Face, Anthropic Claude, Google Gemini)
- Strong experience with AI orchestration tools (e.g., LangChain, LlamaIndex, vector databases for retrieval augmentation)
- Hands-on knowledge of function calling and API-based reasoning models (e.g., using structured outputs to drive automated workflows)
- Proficiency in Python and AI development frameworks for building scalable AI applications
- Understanding of multi-agent architectures and best practices in agentic AI design
Requirements
- Bachelor's, Master's, or Ph.D. degree in a technical field or equivalent related professional experience
- Expertise in more than one major ML programming language (Python, R, Scala, etc.) and familiarity with others
- Experience leading large data science technical programs, delivering successful outcomes typically involving cross-functional teams of 10+
- Demonstrated ability to regularly contribute to the data science and technology community through blog posts, tech talks, major data science or technology domain conferences/events, etc.
- Experience defining data science best practices at a team/capability level
- Expertise in configuring, maintaining, and optimizing storage and processing environments (cloud, on-premises, cluster management, etc.)
- In-depth understanding of all aspects of machine learning theory
- Strong experience in application in an industrial setting and crafting robust solutions relatively quickly
- Solid theoretical foundation applies advanced statistical methods to a broad range of problems
- Experience with advanced methods such as Stochastic Processes, Bayesian Neural Networks, Markov Models, Discriminant and Factor Analysis, and applies them while considering underlying assumptions and limitations
- Continuous learning and adaptability to stay ahead of rapidly evolving technologies and techniques in machine learning and data science
- Strong communication and storytelling skills to effectively convey complex technical concepts to diverse stakeholders
- Collaborative mindset and ability to lead cross-functional teams in delivering innovative solutions
- Strategic thinking and business acumen to align machine learning initiatives with organizational goals and drive measurable impact
- Ethical and responsible AI practices to ensure fairness, transparency, and accountability in machine learning model development and deployment.
Benefits
- Medical/dental/vision
- Paid time off
- Employee Assistance Program
- Wellness & travel reimbursement
- Travel discounts
- International Airlines Travel Agent (IATAN) membership
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
PythonRScalamachine learning pipelinesdata processingLLM fine-tuningprompt engineeringAI orchestration toolsadvanced statistical methodsStochastic Processes
Soft Skills
leadershipcommunicationcollaborationstrategic thinkingadaptabilitystorytellingmentoringethical AI practicesbusiness acumenproblem-solving
Certifications
Bachelor's degreeMaster's degreePh.D. degree