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Senior Staff

Joseph Slade, Executive Director

Joe Slade pic07082016 for websiteJoe brings over a decade of finance and operations experience to Temple Sinai; he previously served as Executive Director of the historic K.A.M. Isaiah Israel Congregation in Chicago. Joe also worked at the Union for Reform Judaism’s Goldman Union Camp Institute, as the Senior Assistant Director, focusing on staff and facilities management, safety, and security.

Joe, his wife Alison Banger, and their daughter Alexandra live in Dumont.

A native New Yorker, Joe received his B.A. in Philosophy at the University of Chicago before spending the next decade working in higher education administration and Jewish camping, earning an M.A. in Philosophy from Georgia State University as well.


Sara Losch, Interim Director of the Early Childhood Center (ECC)

Rabbi Beth Kramer Mazer

Sara Losch, Interim Director, Early Childhood Center (ECC)

Sara Losch was the founding director of the Barnert Temple and Preschool Center in Franklin Lakes, from where she retired after 33 years as the Director of Lifelong Learning and where she created and supervised all areas of education, from preschool through adult.

Sara’s undergraduate degree is in Special Education. She has a master’s degree in early childhood education.

Sara’s passions are early childhood education, Jewish education, and social justice work. Sara has traveled to Cambodia and Rwanda, helped run adult building experiences in New Orleans and New Jersey and, with Rabbi Joel Soffin, co-created and ran a unique social justice experience for teens called Bonim Banim – Building Youth.
Sara’s educational passions are mentoring new teachers, guiding parents of young children through the landmines of child rearing, and studying Jewish texts and Talmud. Sara lives in Wyckoff, NJ with her Uruguayan husband, Jorge. They have two grown children who live “too far” away.



Guy Ratki, Director Religious School

Guy Ratki brings to Temple Sinai a diverse educational background. Guy’s undergraduate degree is in political science, and he has a master’s degree in counterterrorism, which he studied in Israel, and in K-6 education with a certification in special education.

Guy has worked as a 3rd/4th-grade public school teacher, a religious school teacher, and a youth group advisor.

Guy’s interest lies in empowering and engaging children to foster connections between their everyday life and Judaism. He believes that Tikkun Olam is more than a phrase but our mission and calling and a bridge to the future of what we hope and dream of seeing implemented in our communities, country, and world.

He enjoys reading, writing, and hiking. Guy lives in Springfield with his wife, Dani.


Sat, October 1 2022 6 Tishrei 5783