Alumni Ambassadors

Alumni Ambassadors are alumni representatives who embody the values and aims of the MA in Policy Studies program. As alumni working across diverse roles and sectors, they support prospective students, current students, and fellow alumni by sharing how they’ve translated their degrees and navigated their careers.

Learn about our Alumni Ambassadors and email them directly at

David Doyle, '15

David DoyleDavid Doyle is the Open Data Program Manager for City of Seattle.  His primary focus is continuing the implementation of Seattle’s open data policy, which involves coordinating efforts across all City departments to accelerate the publishing of high value datasets into  David’s passion for open data developed as a Policy Studies student, leading him to complete an analysis of the impacts of open data law in Washington State as his capstone research project.  
Prior to joining the City of Seattle, David worked at Microsoft for over 18 years within the Windows localization and internationalization teams. Most recently, he ran a Data Insights team that focused on Windows 10 worldwide customer data, analyzing data from hundreds of millions of customers to provide insights into customer usage patterns outside of the US and ensuring that key customer feedback from those markets was prioritized and addressed.  David also holds an Master of Science in Technology Management from University College Dublin, Ireland, and a Bachelor of Science in Applied Sciences (Computer Science & Physics) from the Dublin Institute of Technology, Ireland.

Jefferson Ketchel, '08

Jefferson Ketchel is the Administrator of the Snohomish Health District. He has over 24 years of public health experience and holds a Masters in Policy Studies from the University of Washington. He is former President of the Washington State Association of Local Public Health Officials (WSALPHO) and a past Chair of the Washington State Board of Registered Sanitarians (WSBRS). He is a graduate of Harvard University’s National Preparedness Leadership Initiative Executive Education Program (NPLI) and the CDC’s Environmental Public Health Leadership Institute (EPHLI).

Brandon Mayfield, '10

Brandon Mayfield is a Grants and Contracts Business Partner for the U.S. Program at  Bill & Melinda Gates Foundation. The U.S. Program works to improve U.S. high school and postsecondary education and support vulnerable children and families in Washington State. In his role, Brandon is responsible for grant and organizational compliance, agreement drafting, amendment management, and ongoing grants support for a portfolio of grantee partners.  Prior to Gates Foundation, Brandon worked in regulatory compliance in the customer service industry.  Brandon holds an M.A. in Policy Studies from University of Washington Bothell and a B.A. in Political Science and Social Studies from Western Washington University.

Vy Nguyen, '12

Vy NguyenVy Nguyen is a Seattle area born and raised native with a background in community development and passion for social justice and equity issues. Vy’s work has taken her as far as Azerbaijan with the U.S. Peace Corps, the other Washington as an intern for U.S. Representative Jim McDermott, and locally in White Center and Seattle’s Little Saigon around community building issues. More recently she worked for an immigrant rights advocacy non-profit as a policy staffer on early learning, adult education, economic and workforce issues with local and national partners. Vy was the lead researcher and author of a report on brain waste (a term describing the trend of immigrants and refugees with foreign degrees or professional careers who are not able to fully bring their skills and talents to the local workforce due to financial, cultural, and systemic barriers) and has also contributed to national platforms on immigrant integration. Currently, she is a legislative aide to Seattle Councilmember Lorena González, where she serves as policy lead on immigrant and refugee affairs, housing, homelessness, and education.

Alumni Stories

Learn about other Policy Studies alumni.