Carrie Bornstein

Executive Director |

Carrie has been with Mayyim Hayyim since she became a volunteer Mikveh Guide in 2006. She joined the staff in 2008 as Mikveh Center Director and soon after was promoted to Assistant Director. In 2012, the board selected Carrie to succeed Mayyim Hayyim’s founding director, and she is now leading the organization to deepen its roots in the Greater Boston area and expand around the country and world through the Rising Tide Open Waters Mikveh Network. Carrie is a Schusterman Fellow and in 2013 Combined Jewish Philanthropies named her one of the 18 most influential young adults in Boston.

A cum laude graduate of Skidmore College, Carrie received her Master’s degree in Social Work from Boston University with a focus on Macro Practice, including non-profit management, planning and program development, and community organizing. A graduate of the first cohort of DeLeT (Day School Leadership through Teaching) at Brandeis University, Carrie also studied at the Pardes Institute of Jewish Studies in Jerusalem.

Carrie lives in Sharon, MA with her husband, Jamie, and their three children.

Leeza Negelev

Associate Director of Education |

Leeza Neglev

Leeza joined Mayyim Hayyim in July 2014. She brings with her ten years of teaching and developing dynamic arts- and project-based education programs with people of all ages. In 2010, Leeza co-founded and taught at “Artrageous Storytellers” an experiential arts summer camp for middle school students in Washington state. Before moving back home to Boston, Leeza was the Youth Educator at Kolot Chayeinu (a progressive synagogue known for its diversity), and an Arts Fellow at the Drisha Institute for Jewish Education in New York. Leeza holds a Bachelor’s Degree from The Evergreen State College in Washington, with a concentration in education and non-profit business management. She is a Combined Jewish Philanthropies 2016 Chai in the Hub honoree.

Rachel Eisen

Director of Development |

Rachel Eisen

Rachel first discovered Mayyim Hayyim when she brought a group of college students on a field trip to learn about mikveh and ritual innovation. Rachel grew up in New York and Maryland, and has an extensive background in the Jewish communal field. Previously, she was the Senior Engagement Associate at Brown RISD Hillel in Providence, RI. Rachel holds dual master’s degrees from Brandeis University’s Hornstein Program in Jewish Professional Leadership and Near Eastern & Judaic Studies and a BA in History and Jewish Studies from Vassar College. She has also studied at the Pardes Institute of Jewish Studies in Jerusalem, the Shalom Hartman Institute, and Hebrew College. Rachel is a co-founder of Mentoring for Equity, a national initiative to connect women-identified Jewish communal professionals in mentoring relationships in order to help close the gender leadership gap and work toward gender equity in the Jewish non-profit sector. She is a member of the young adult leadership committees at her synagogue and at the New Israel Fund (New England region). Rachel lives in Newton with her husband, Nate.

Jessica Rosenberg

Director, Rising Tide Open Waters Mikveh Network|

Jessica joined Mayyim Hayyim in 2019 as a graduate fellow and became director of the Rising Tide Open Waters Mikveh Network in 2020. She brings more than a decade of experience in education, communications, creative ritual exploration, relationship building, and program management working with organizations in Europe, Israel, and across the U.S. Jessica was born and raised in New York and holds a Bachelor’s in Philosophy from Kenyon College and a Master of Divinity from Harvard Divinity School. Her graduate work focused on bringing historical Jewish rituals into the present and she is thrilled to work with this network and the open mikva’ot around the world who are making this ritual accessible to all Jews. She lives with her partner and their two dogs near Point Reyes, California.

Elizabeth Eggert

Administrative and Marketing Assistant |

Elizabeth Eggert

Elizabeth joined Mayyim Hayyim in August 2018. She graduated magna cum laude from Macalester College with a bachelor’s degree in English Literature and American Studies. While in school, Elizabeth interned at Jewish Community Action in Saint Paul, MN, where she worked on issues of voting rights and mass incarceration and gained a greater appreciation for the role of Jewish organizations in community engagement. Elizabeth is excited about Mayyim Hayyim’s commitment to accessibility, education, and pluralism.

Leah Robbins

Interim Mikveh Center Coordinator

Leah Robbins returned to Mayyim Hayyim in 2020 after graduating with dual master’s degrees from Brandeis University’s Hornstein Program in Jewish Professional Leadership and Near Eastern & Judaic Studies. She recently served as OneTable’s first ever Boston Field Fellow, providing spiritual and logistical coaching to young adults to build their own relationship with Shabbat. Leah also serves as the Community Accountability Coordinator for the 20s & 30s Kavod Community, creating justice-driven communal infrastructure to address intra-community conflict and interpersonal harm. Wherever she finds herself, Leah is committed to connecting Jews to ritual, justice, other Jews, and to themselves.