Expedia Group
Machine Learning Scientist III – Growth Marketing (Multimodal LLMs, NLP, Compute
Expedia Group, Seattle, Washington, us, 98127
Base pay range
$137,500.00/yr - $192,500.00/yr
Expedia Group brands power global travel for everyone, everywhere. We design cutting‑edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success.
In This Role, You Will
Design and develop end‑to‑end automated systems using a variety of in‑house tools, from fine‑tuned NLP, computer vision, and multimodal models to commercial LLMs, with the ability to determine the right tool or combination for each module/task.
Develop and deploy complex agentic and multimodal AI workflows at production scale, architecting memory‑enabled, context‑aware agents that drive dynamic automation, personalization, real‑time monitoring and content generation.
Design and orchestrate advanced LLM and RAG‑driven agent solutions using modular frameworks including LangGraph, Langfuse, CrewAI, AutoGen, and other emerging agentic orchestration tools, enabling adaptive, stateful, and highly interactive workflow graphs.
Integrate and optimise complete multimodal GenAI pipelines: text‑to‑image, image‑to‑video, text‑to‑video, and text‑to‑voice, leveraging and extending in‑house and third‑party models.
Fine‑tune (parameter‑efficient tuning, LoRA, QLoRA, etc.), and evaluate (perplexity, accuracy, creativity metrics) both open‑source (Llama, MPT, Phi‑4, etc.) and commercial LLMs (OpenAI GPT‑4, Gemini, Claude).
Collaborate deeply with engineering, marketing, and product teams to translate evolving business objectives into scalable AI‑driven solutions.
Experience And Qualifications
7+ years experience delivering robust, scalable AI/GenAI solutions at enterprise scale with a Bachelors degree (4‑5+ years of relevant experience with a Masters/PhD in CS, EE, Stats).
Strong foundation in NLP and computer vision, including hands‑on work with BERT/Transformers, and detection models (e.g. YOLO, Mask R‑CNN); skilled in training optimisation techniques such as LoRA, quantisation, and distributed multi‑GPU scaling using PyTorch.
Agentic frameworks experience working with platforms such as LangGraph, Langfuse, RAG, CrewAI, AutoGen, and comparable agent workflow frameworks.
Multimodal and agentic AI experience in both commercial and open‑source models (VLMs, CLIP, Phi‑4, DINO, etc.), advanced LLM pipeline design, and shipping both inference and GenAI features to users.
Hands‑on experience in fundamental neural network models (CNN, Transformers, BERT, VAEs, Multimodals, etc.).
Proven expertise in architecting persistent, hybrid, and context‑managed memory for agentic workflows.
Strong in Python (PyTorch, HuggingFace, etc.), distributed systems (PySpark, Databricks, Airflow), and scalable API engineering.
Ability to translate high‑level business objectives into actionable solutions for cross‑functional teams, leveraging multimodal LLMs and GenAI models.
The total cash range for this position in Seattle is $137,500.00 to $192,500.00. Employees in this role have the potential to increase their pay up to $220,000.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.
Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual’s knowledge, skills, and experience. Pay ranges may be modified in the future.
Expedia Group is proud to offer a wide range of benefits to support employees and their families, including medical/dental/vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits.
Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. 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.
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Expedia Group brands power global travel for everyone, everywhere. We design cutting‑edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success.
In This Role, You Will
Design and develop end‑to‑end automated systems using a variety of in‑house tools, from fine‑tuned NLP, computer vision, and multimodal models to commercial LLMs, with the ability to determine the right tool or combination for each module/task.
Develop and deploy complex agentic and multimodal AI workflows at production scale, architecting memory‑enabled, context‑aware agents that drive dynamic automation, personalization, real‑time monitoring and content generation.
Design and orchestrate advanced LLM and RAG‑driven agent solutions using modular frameworks including LangGraph, Langfuse, CrewAI, AutoGen, and other emerging agentic orchestration tools, enabling adaptive, stateful, and highly interactive workflow graphs.
Integrate and optimise complete multimodal GenAI pipelines: text‑to‑image, image‑to‑video, text‑to‑video, and text‑to‑voice, leveraging and extending in‑house and third‑party models.
Fine‑tune (parameter‑efficient tuning, LoRA, QLoRA, etc.), and evaluate (perplexity, accuracy, creativity metrics) both open‑source (Llama, MPT, Phi‑4, etc.) and commercial LLMs (OpenAI GPT‑4, Gemini, Claude).
Collaborate deeply with engineering, marketing, and product teams to translate evolving business objectives into scalable AI‑driven solutions.
Experience And Qualifications
7+ years experience delivering robust, scalable AI/GenAI solutions at enterprise scale with a Bachelors degree (4‑5+ years of relevant experience with a Masters/PhD in CS, EE, Stats).
Strong foundation in NLP and computer vision, including hands‑on work with BERT/Transformers, and detection models (e.g. YOLO, Mask R‑CNN); skilled in training optimisation techniques such as LoRA, quantisation, and distributed multi‑GPU scaling using PyTorch.
Agentic frameworks experience working with platforms such as LangGraph, Langfuse, RAG, CrewAI, AutoGen, and comparable agent workflow frameworks.
Multimodal and agentic AI experience in both commercial and open‑source models (VLMs, CLIP, Phi‑4, DINO, etc.), advanced LLM pipeline design, and shipping both inference and GenAI features to users.
Hands‑on experience in fundamental neural network models (CNN, Transformers, BERT, VAEs, Multimodals, etc.).
Proven expertise in architecting persistent, hybrid, and context‑managed memory for agentic workflows.
Strong in Python (PyTorch, HuggingFace, etc.), distributed systems (PySpark, Databricks, Airflow), and scalable API engineering.
Ability to translate high‑level business objectives into actionable solutions for cross‑functional teams, leveraging multimodal LLMs and GenAI models.
The total cash range for this position in Seattle is $137,500.00 to $192,500.00. Employees in this role have the potential to increase their pay up to $220,000.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.
Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual’s knowledge, skills, and experience. Pay ranges may be modified in the future.
Expedia Group is proud to offer a wide range of benefits to support employees and their families, including medical/dental/vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits.
Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. 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.
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