Katie Mazer

Senior Program Officer

Katie Mazer is a senior program officer at the Weinberg Foundation, focused primarily on the Israel portfolio. In this capacity, she is responsible for grantmaking in the areas of women-at-risk, older adults, and economic development in Israel.

Prior to joining the Foundation, Katie was the founder and executive director of Key Collegiate Charter School, a middle school serving students in Brooklyn, NY. In this role, Katie led strategic planning and coached the school’s leadership team. Prior to opening Key Collegiate, Katie was a fellow with Building Excellent Schools, a national nonprofit that selects leaders from across the country to design, found, and lead independent charter schools.

In 2013, Katie made Aliyah and moved to Tel Aviv to captain Israel’s national lacrosse team, leading them to a top-eight seat in their first World Cup appearance. She worked to build a co-existence league in Jaffa and helped develop youth leagues in Ashkelon. Additionally, Katie worked with the refugee population in Israel, primarily women and children from the Horn of Africa, to access safe housing and job opportunities. Stemming from this experience, Katie founded The Traveling School, which provided language classes in both Hebrew and English for refugee adults seeking employment.

Katie began her career as a Teach for America corps member teaching high school English in Oakland, CA. She fundamentally believes that a high-quality education can change the trajectory of a person’s life.

Katie graduated cum laude from the University of Pennsylvania with a Bachelor of Arts in English and earned her Master of Arts in education policy and management from Harvard’s Graduate School of Education.

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