
UW-Madison Alum Brings Science Expertise to Public Policy
From his early days as a Posse Scholar at the University of Wisconsin–Madison to his current role as a legislative policy analyst for the New York City Council, Dr. Dirk Spencer has pursued a career spanning scientific research and public service. He credits his career journey’s success to the generous stewardship he has received along the way. “I think the theme throughout my life has been luck and incredibly supportive mentors,” says Dirk.
His journey to Posse began with a moment of unexpected connection. During the Dynamic Assessment Process—Posse’s unique selection method—Dirk noticed a familiar face in a photograph of past Posse Scholars: his high school AP government teacher.
“I stopped and realized, ‘Wait, that’s Mr. Arguelles!’” he recalls. “It was such a fun connection. It made me realize how far-reaching Posse’s impact had already become.”
At UW–Madison, Dirk found a strong foundation in the Posse community.
“Posse was a fantastic experience,” he says. “It provided a strong sense of community, especially during those first few months when everything was new and overwhelming.”
After earning his bachelor’s degree in genetics in 2016, Dirk began a Ph.D. in biology at Stanford University. His undergraduate research focused on plant physiology and response to physical stimuli, while his graduate work explored the development of stomata—tiny pores on plant surfaces that regulate gas exchange.
However, during the COVID-19 pandemic, Dirk began to rethink his path.
“It was an opportunity to reflect,” he says. “I thought, ‘There seems to be a real need for more folks with my background and training in the public space.’”
That realization led Dirk to pivot toward science policy. In 2020, he was selected for the California Council on Science and Technology (CCST) Fellowship and placed in the California State Legislature where he worked on a range of issues, including transportation safety and environmental protection. One project examined the environmental impact of tire antioxidants on sensitive aquatic ecosystems—a topic that bridged his scientific training and policy interests.
Dirk now works for the New York City Council, where he focuses on housing, buildings, sanitation, and solid waste management.
To current Posse Scholars interested in public service, he offers practical advice: “You don’t have to wait to get involved. There are a lot of volunteer opportunities, and there are roles post-undergrad where you can work for local representatives. Look them up. Figure out who they are and if they reflect your values, because there’s always a need for more help.”