Expedia Group

Senior Machine Learning Scientist - Agentic Experience

USA - California - San Jose, USA · Senior

Sponsorship not specified$187k-$262kDetected 7 hours ago

PythonReactMachine LearningTensorFlowPyTorchLLMsAgentic AIAI OrchestrationStatisticsA/B TestingRecruitingResearchCollaboration

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.
The Traveler Discovery & Planning team at Expedia is at the forefront of innovation in AI-driven agentic systems.
We're dedicated to enhancing customer experiences, increasing engagement, and strengthening traveler relationships through cutting-edge machine learning solutions.

Design, build, and evaluate multi-step agentic AI systems, including autonomous agents capable of planning, tool use, memory management, and multi-agent collaboration
Research and implement state-of-the-art techniques in agentic architectures, such as ReAct, reflection loops, chain-of-thought prompting, and tool-augmented reasoning
Develop and maintain agent orchestration frameworks, defining how agents decompose tasks, delegate to sub-agents, and handle failure and recovery
Define and own evaluation frameworks for agentic systems, measuring task success, reliability, latency, cost, and safety across diverse benchmarks and production scenarios
Mentor junior ML engineers and scientists, providing technical guidance on agentic design patterns, LLM best practices, and experimentation methodology
As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business.
Join us and build for travelers everywhere.
Collaborate closely with product, engineering, and research teams to translate business requirements into agentic system designs and deliver production-grade solutions

8+ years of related industry experience
Demonstrated experience designing and deploying agentic or multi-step AI systems (e.g., ReAct, tool-calling agents, multi-agent pipelines) in production or research settings
Strong proficiency in Python and ML frameworks (PyTorch, TensorFlow, or JAX)
experience with LLM APIs and orchestration libraries (e.g., LangChain, LlamaIndex, or similar)
Experience integrating LLMs with external tools, APIs, and structured data sources for real-world task completion
Experience defining and running evaluation frameworks for ML systems, including offline benchmarking and production monitoring

or equivalent professional experience
Experience in the travel or e-commerce industry
Publications in top-tier ML conferences or journals
Patented Inventions, pending and issued
Contributions to open-source ML projects
The total cash range for this position in San Jose is $187,000.00 to $261,500.00.
Employees in this role have the potential to increase their pay up to $299,000.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.
The total cash range for this position in Seattle is $173,000.00 to $242,500.00.

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.
Our work directly impacts millions of travelers worldwide, shaping their journey from dreaming to booking and beyond.
Join a team that's focused on Agentic Experiences revolutionizing traveler experiences through autonomous, intelligent agent systems.
From building cutting-edge conversational AI that anticipates traveler needs to developing proactive solutions for personalized trip planning, your work will shape the future of travel assistance and directly impact millions of users worldwide.
This is a rare opportunity to build foundational systems in a high-impact domain, backed by Expedia's AI-first vision.
At Expedia Group, we help travelers explore the world, one journey at a time.

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.

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.

This listing is sourced directly from Expedia Group's careers page and normalized into a canonical job model.