Jon Marker is currently the Vice President at Third Plateau, a position held since 2025. Previously, Jon served as the Director of Jewish Philanthropy at the Aviv Foundation from 2022 to 2025 and held various roles in educational and nonprofit sectors, including Chief Executive Officer at the Youth Leadership Institute and Senior Program Officer at the Jim Joseph Foundation. Jon began their career as a Social Studies Teacher for Prince George's County Public Schools from 2008 to 2010, where they developed curriculum and led professional development initiatives. They earned a Bachelor's degree in Political Science from Boston University and a Master's in Teaching from American University.
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