Senior GenAI Scientist – Growth Marketing Systems

Traveltechessentialist; Washington; On-site; USD 173,000 - 243,000; Full time

Benefits offered by this job

Medical, dental, and vision

Paid time off

Travel discounts

IATAN membership

Job summary

Expedia Group in Seattle is seeking a hands-on Senior Machine Learning Scientist to build end-to-end GenAI and agentic marketing systems, spanning backend architectures to user interfaces.

You will lead development of RAG pipelines, memory architectures, and multimodal data pipelines while collaborating with product and design teams to ship user-facing features and ensure scalable, observability-rich solutions.

Qualifications

• 10+ years in software engineering, ML, and AI systems with production GenAI deployments.
• Deep expertise in LLM training, adaptation, distillation, RLHF/DPO, and RAG systems.
• Solid foundation in NLP and experience with multimodal AI systems (vision-language).
• Proven experience building and operating multi-agent AI platforms with observability.
• Strong background in distributed GPU training, cloud infrastructure, and ML tooling.
• Demonstrated ability to lead end-to-end AI product development with cross-functional teams.

Responsibilities

• Architect, build, and ship end-to-end GenAI, RAG, and multi-agent systems.
• Design Interactive Generative UIs, dashboards, and safety/observability features.
• Develop memory architectures and adaptive retrieval systems.
• Lead RAG pipelines, vector memory systems, and agent orchestration frameworks.
• Train, fine-tune, adapt, and distill LLMs for production chatbots and GenAI products.
• Build multimodal pipelines integrating vision, audio, text, and structured data.
• Collaborate with product and engineering to ship user-facing features with strong UX.
• Mentor engineers and ML scientists; set standards and review designs.
• Represent the org via open-source contributions, patents, conferences.

Skills

GenAI systems

LLM training

NLP

Multi-agent platforms

Distributed GPU training

Cloud infrastructure

Product development

Communication skills

Education

PhD in Computer Science

Tools

LangGraph

LangSmith

AutoGen

OpenAI

Claude Agents SDK

Job description

Expedia Group in Seattle is seeking a hands-on Senior Machine Learning Scientist to build end-to-end GenAI and agentic marketing systems, spanning backend architectures to user interfaces.

You will lead development of RAG pipelines, memory architectures, and multimodal data pipelines while collaborating with product and design teams to ship user-facing features and ensure scalable, observability-rich solutions.