10 Marriott AI and data science leaders
Paul Dyrwal, Vice President, Generative AI at Marriott International, opens this list of Marriott AI and data science leaders, which also includes two more vice presidents whose titles name AI, and senior directors and directors of data science and generative AI. A reader can learn how AI and data science leaders work at Marriott from people who have held the role.
Professionals to explore
Daniel MacDonald
LinkedInExperience: Vice President Data Engineering, Analytics, ML and AI Analytical Platforms · Marriott International
Daniel MacDonald has been Vice President Data Engineering, Analytics, ML and AI Analytical Platforms at Marriott International since October 2016, and describes building and operating the global data warehouse, analytics, ML and GenAI platforms with data teams of 100+ resources. Daniel MacDonald was Director Enterprise Data Warehouse & Business Intelligence at SHRW, LLC from 2011 to 2016.
Himanshu Sinha
LinkedInExperience: Director, Advanced Data Science · Marriott International
Himanshu Sinha has been Director, Advanced Data Science at Marriott International since May 2023, developing ML/AI engines to identify high-potential customers and tailor personalized engagement strategies. Himanshu Sinha was Lead Data Scientist at CVS Health from 2022 to 2023 and Data Scientist at Precisely from 2012 to 2022.
John Cook
LinkedInExperience: Senior Director, Data Science and Franchise Insights · Marriott International
John Cook has been Senior Director, Data Science and Franchise Insights at Marriott International since February 2025. John Cook was Senior Director, Data Science and Reporting, US & Canada SMR at Marriott International from 2022 to 2025 and Director, Data Science, Data Strategy and Analytics, Americas SMR from 2018 to 2022.
Jonathan Levine
LinkedInExperience: Senior Director, Lead Data Scientist · Marriott International
Jonathan Levine has been Senior Director, Lead Data Scientist at Marriott International since August 2022, leading a team of data scientists who use machine learning and mathematical optimization for customer experience and revenue generation. Jonathan Levine was Senior Director, Data Strategy and Management at Marriott International from 2019 to 2022.
Kim Weller
LinkedInExperience: Senior Director of Product, AI Studio · Marriott International
Kim Weller has been Senior Director of Product, AI Studio at Marriott International since July 2025, a Product role at Director level. Kim Weller was Sr. Director, Responsible AI at Ally from 2023 to 2025 and Sr. Director, Conversational AI at Ally from 2020 to 2023.
Kristin Yanulites
LinkedInExperience: Vice President, Data, Analytics & AI - Strategy & Enablement · Marriott International
Kristin Yanulites has been Vice President, Data, Analytics & AI - Strategy & Enablement at Marriott International since January 2026. Kristin Yanulites was Vice President, Business Intelligence at Marriott International from 2023 to 2025 and Senior Director, Data Science Operations there from 2018 to 2020.
Liang Long
LinkedInExperience: Senior Director, Data Science in GenAI Studio · Marriott International
Liang Long has been Senior Director, Data Science in GenAI Studio at Marriott International since July 2025. Liang Long held Senior Director, Head of Global Marketing and Media Data Science at Marriott International from 2024 to 2025, Senior Director, Head of Global Digital Products Analytics from 2021 to 2024 and Data Science Director, Co-brand Credit Card from 2018 to 2021.
Matt Kretman
LinkedInExperience: Senior Director, GenAI Strategy and Operations · Marriott International
Matt Kretman has been Senior Director, GenAI Strategy and Operations at Marriott International since February 2026, based in Bethesda. Matt Kretman was Senior Director, Global Consulting (formerly Business Advisory) at Marriott International from 2022 to 2026 and Strategy and Growth Manager, Digital Business Revenue at General Motors in 2022.
Nitin Kumar
LinkedInExperience: Director Data Science · Marriott International
Nitin Kumar has been Director Data Science at Marriott International since February 2021, and describes architecting enterprise-scale generative-AI, vector and graph solutions that power intelligent assistants. Nitin Kumar was Manager Data Science/ Sr. Data Scientist/ Sr. Business System Analyst at Xerox from 2015 to 2021.
Paul Dyrwal
LinkedInExperience: Vice President, Generative AI · Marriott International
Paul Dyrwal has been Vice President, Generative AI at Marriott International since February 2024, and describes the role as global leader of generative AI and work automation and a founding member and leader of AI Studio. Paul Dyrwal was Director, Product Content & Localization at Ancestry from 2019 to 2023 and Principal Product Manager, Phenotypic Data there from 2018 to 2019.
Choose the right perspective
Match the person's area, such as generative AI products, data and AI platforms, or data science for marketing, loyalty or franchise work, to the decision you face. Check when each person's current role started to judge how recent their view of the work is.
Questions to take into the conversation
- 01How do you choose which generative AI use cases to take beyond a pilot?
- 02What has worked for you in organizing data scientists, engineers and product managers around AI work?
- 03How do you measure whether a data science or AI effort changed a business result?
Reaching Marriott AI and data science leaders
How can I contact one of these Marriott AI and data science leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Marriott International, based on profile data retrieved on October 26, 2026. Being listed here doesn't mean someone has agreed to take calls.
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Can an AI agent ask one of these Marriott AI and data science leaders a question?
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.