Our

Team Members

Bilita “Bili” Mattes, D.Ed.

Executive Director, STEM-UP Network

Bili Mattes has over twenty-five years of progressively responsible experience in higher education administration, academic outreach, and program innovation and development.

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Erika Zacharda

Program and Social Media Coordinator, STEM-UP Network
Erika Zacharda is the Program & Social Media Coordinator for STEM-UP Network. Erika brings a wealth of experience in administrative roles and event planning. With a background in business administration from Eastern University, Erika’s expertise ensures seamless support for our organization. A Lancaster County native, she combines her proactive approach with attention to detail, contributing to the efficiency and success of our operations.

Anne Pettinaroli

Marketing & Communications Manager, STEM-UP Network
Annie Pettinaroli is the Marketing & Communications Manager at STEM-UP. Previously she has worked in nonprofit communications, county government, advertising agencies and as an entrepreneur. She graduated from Penn State University and is fluent in Spanish.

Yvonne M. Dunst

Program Coordinator
STEM-UP Network and Harrisburg University of Science and Technology

Yvonne is currently a Program Coordinator for the STEM-UP Network and Harrisburg University of Science and Technology.  She has been involved with the STEM-UP Network since its inception, coordinating and managing our programs and events.

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Renee A. Dunst

Academic Program Coordinator
STEM-UP Network and Harrisburg University of Science and Technology

Renee is an Academic Program Coordinator for the STEM-UP Network and Harrisburg University of Science and Technology.  She supports the STEM-UP Network by providing assistance at events, managing the organization’s website and social media, and various clerical tasks.  For Harrisburg University, she is part of the Human Resources team focusing on onboarding new corporate faculty (adjuncts) and managing the end-of-term student course evaluations. 

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