Senior Agentic AI Scientist for Travel Experiences

11360 Expedia Spain S.L.; Seattle (WA); On-site; USD 112,000 - 157,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Paid time off

Employee Assistance Program

Travel reimbursement

Travel discounts

IATAN membership

Job summary

Expedia Group is seeking a senior AI researcher to design and deploy agentic AI systems that operate across autonomous agents, planning, and tool use. You will collaborate with product, engineering, and research teams to translate business needs into practical, production-grade architectures and evaluation frameworks.

Your work will impact travel experiences globally and push the boundaries of AI-assisted planning.

Qualifications

• PhD, MS, or BS in Computer Science, Machine Learning, Statistics, Engineering, or a related field; or equivalent professional experience.
• 2+ 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.
• 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.
• Understanding of prompt engineering techniques including chain-of-thought, few-shot prompting, and structured output generation.
• Experience defining and running evaluation frameworks for ML systems, including offline benchmarking and production monitoring.

Responsibilities

• 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.
• Integrate large language models (LLMs) with external tools, APIs, databases, and code execution environments to enable real-world task completion.
• Define and own evaluation frameworks for agentic systems, measuring task success, reliability, latency, cost, and safety across diverse benchmarks and production scenarios.
• Collaborate closely with product, engineering, and research teams to translate business requirements into agentic system designs and deliver production-grade solutions.
• Identify and mitigate risks specific to agentic systems, including prompt injection, unintended actions, hallucination in long-horizon tasks, and unsafe tool use.
• Stay current with the rapidly evolving agentic AI landscape, synthesizing academic research and industry developments to inform the team's technical direction.

Skills

Agentic AI systems design

Python programming

ML frameworks

LLM APIs

Prompt engineering

Evaluation frameworks

Multi-agent systems

Education

CS/ML degree or equivalent

Tools

LangChain

LlamaIndex

PyTorch

TensorFlow

JAX

Job description

Expedia Group is seeking a senior AI researcher to design and deploy agentic AI systems that operate across autonomous agents, planning, and tool use. You will collaborate with product, engineering, and research teams to translate business needs into practical, production-grade architectures and evaluation frameworks.

Your work will impact travel experiences globally and push the boundaries of AI-assisted planning.