Senior Machine Learning Scientist – Agentic Experience

Expedia Group

. Design, build, and evaluate multi-step agentic AI systems, including autonomous agents capable of planning, tool use, memory management, and multi-agent collaboration .

Posted 11/10/2026full-timeUnited StatesSenior💰 $184,500 - $261,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and deploying multi-step agentic AI systems, integrating large language models with external tools, and defining evaluation frameworks for machine learning systems. Proven ability to mentor junior engineers and collaborate across teams to translate business requirements into effective AI solutions.

Highest-signal resume keywords

Agentic AI System DesignPython ProficiencyLLM IntegrationEvaluation Framework DevelopmentMentorship in Machine Learning

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Agentic System DesignMulti-Step AI SystemsPythonML FrameworksPrompt EngineeringEvaluation FrameworksTask DecompositionTool-Augmented ReasoningChain-of-Thought PromptingFailure Handling

Soft Skills

CollaborationMentoringRisk MitigationCommunication

Tools & Technologies

PyTorchTensorFlowJAXLangChainLlamaIndexAPIsDatabasesCode Execution Environments

Certifications & Qualifications

PhDMSBS in Computer ScienceMachine LearningStatisticsEngineering

Industry Keywords

Travel IndustryE-Commerce IndustryMachine Learning ConferencesOpen-Source ContributionsPublicationsPatented Inventions

Tech Stack

Tools & technologies

PythonPyTorchReactTensorflow

About the role

Key responsibilities & impact

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 agentic architectures such as ReAct, reflection loops, chain-of-thought prompting, and tool-augmented reasoning
Develop and maintain agent orchestration frameworks for task decomposition, delegation to sub-agents, failure handling, and recovery
Integrate large language models with external tools, APIs, databases, and code execution environments
Define and own evaluation frameworks measuring task success, reliability, latency, cost, and safety
Collaborate with product, engineering, and research teams to translate business requirements into agentic system designs and production-grade solutions
Identify and mitigate risks including prompt injection, unintended actions, hallucination in long-horizon tasks, and unsafe tool use
Stay current with agentic AI research and industry developments to inform technical direction
Mentor junior ML engineers and scientists on agentic design patterns, LLM best practices, and experimentation methodology

Requirements

What you’ll need

8+ years of related industry experience
Demonstrated experience designing and deploying agentic or multi-step AI systems in production or research settings
Strong proficiency in Python and ML frameworks such as PyTorch, TensorFlow, or JAX
Experience with LLM APIs and orchestration libraries such as LangChain, LlamaIndex, or similar
Experience integrating LLMs with external tools, APIs, and structured data sources for real-world task completion
Solid 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
Preferred: PhD, MS, or BS in Computer Science, Machine Learning, Statistics, Engineering, or a related field, 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
Experience taking models from prototype to production in collaboration with Machine Learning Engineering teams

Benefits

Comp & perks

Medical coverage
Dental coverage
Vision coverage
Paid time off
Employee Assistance Program
Wellness reimbursement
Travel reimbursement
Travel discounts
International Airlines Travel Agent Network (IATAN) membership
Flexible benefits and support
Accommodation or adjustment support during the application or recruiting process