Texas Hillel Staff

Liza Levine Development Director at Texas Hillel
Liza Levine, Director of Development (ext. 1009)
A Texas native, Liza was raised in Houston and holds a Bachelor of Science in Applied Learning and Development, Youth and Community Studies from The University of Texas at Austin. Liza brings more than 15 years of development experience as Director of Development and has a vast knowledge of the Texas Jewish community, having served in various roles in the Dallas and Austin communities. Liza is passionate about the future of the Jewish community and works to inspire more and more students to become the next generation of Jewish leaders. She and her husband, Aaron, met in BBYO and have a son, Jaden.
Margo Sack Director of Jewish Student Life at Texas Hillel
Margo Sack, Director of Jewish Student Life (ext. 1013)

Margo Sack has been working with students for more than three decades.  Over twenty of those years have been at Texas Hillel.  She has master’s degrees in Jewish Studies and in Student Personnel Administration in Higher Education.  Margo has quite a collection of puzzles and games in her office if you’re looking for a distraction.

Email: msack@texashillel.org


Rabbi Moshe Trepp JLF Educator at Texas Hillel
Andres Guariguata, Operations Manager (ext. 1003)

Andrés Guariguata, L.C.S.W., is the Operations Manager for the Texas Hillel Foundation in Austin, TX.  Andrés worked for over 30 years providing behavioral health, substance abuse services through direct care, administrative and state level policy services. Prior to joining Texas Hillel Foundation, he worked as an independent consultant providing behavioral health services with a focus on integrated (behavioral & physical health) services. He continues to maintain a private psychotherapy practice working with adults.

Email: aguariguata@texashillel.org


James Thomas Texas Hillel Development Associate
Alicia Garnes, Development Associate (ext. 1008)
Alicia Kaminsky Garnes is a native Texan who has lived in Austin since 2010.  Alicia attended Tufts University where she graduated with a BA in History.  After receiving her MBA with a concentration in Marketing from American University, she worked in marketing communications for several publishers in Washington, DC. and Great-West Healthcare in Denver, CO.  Since moving to Austin, Alicia has worked for Carol Dochen, Realtors as the Marketing Director and consulted on various marketing projects for local businesses and nonprofits.  Alicia is married and has two children.

Email: agarnes@texashillel.org


Shachar Levi Jewish Agency Israel Fellow at Texas Hillel
Shachar Levi, Jewish Agency Israel Fellow (ext. 1005)
Shachar (which means dawn in Hebrew) is originally from Herzliya, Israel, a northern suburb of Tel Aviv. He is a recent graduate of the IDC University in Herzliya where he studied Government, Diplomacy and Strategy with a focus on Counterterrorism. He served in the I.D.F as a field intelligence officer in the "Kfir" unit for 6 years. After the army Shachar spent a year and a half working and visiting South America. In the last 5 years Shachar volunteered and was active in "Igy," an LGBT Youth Organization.
Rebecca Mather Social Justice Fellow at Texas Hillel
Rebecca Mather, Social Justice Coordinator
Rebecca Mather hails from the Greater Chicago Area. Rebecca graduated from Cornell College in Iowa with a Bachelor of Special Studies in Youth, Gender, and Social Justice. Following graduation, she served for a year with AVODAH: The Jewish Service Corps in New Orleans. After AVODAH, she worked as the Gap Year House Supervisor for Tivnu: Building Justice, a Jewish social justice gap year in Portland, OR. Rebecca is excited to bring her background in group processing and intersectional justice movements to Texas Hillel as the social justice coordinator.

Email: rmather@texashillel.org


Zach Silverman Birthright Israel Engagement Coordinator at Texas Hillel
Zach Silverman, Birthright Israel Engagement Coordinator (ext. 1011)
Zach is originally from Denver, Colorado and graduated from the University of Colorado at Boulder in 2013 with a B.A. in Political Science. After spending over a year in local politics, and another year working for a start-up, he decided to return to his roots of youth engagement in the Jewish community and Israel education. In his free time he enjoys golfing, stand-up paddle boarding, and hanging out with friends. He enjoys watching all sports, and is a diehard Broncos fan. He has been to Israel twice, including studying abroad in college.
James Thomas Texas Hillel Development Associate
James Thomas, Development Assistant
James Thomas comes to Texas Hillel after earning a Master of Divinity from the Seminary of the Southwest and a Bachelor of Arts in Liberal Arts: English and Mathematics from Concordia University in Austin. James began his career in higher education at his alma mater in the Dean of Students office as Director of Student Activities & Student Government, Director of Intramural Sports and Director of Residential Life. As he works towards his Doctorate in Higher Education Administration, he assists Dr. Richard Reddick, University of Texas at Austin Assistant Vice President of Division of Diversity and Community Engagement, on various research projects. James uses his background in student affairs and research to support the growing development efforts at Texas Hillel.

Email: jthomas@texashillel.org


Rabbi Moshe Trepp JLF Educator at Texas Hillel
Rabbi Moshe Trepp, JLF Educator (ext. 1002)
Rabbi Trepp is known for his openness in tackling and discussing difficult and sometimes misunderstood or taboo subjects in his well-attended Learning fellowships. He has a special understanding and unique connection to individuals just beginning their spiritual journeys, and for this reason students find themselves naturally attracted to him and to his teachings. The bulk of his time is spent going from one coffee shop to another meeting and studying one-on-one. Rabbi Trepp is a native of England, and moved from Israel to Austin in 2006. Together with his wife Faigy and their four children, Rabbi Trepp welcomes countless students to his home for weekly Shabbat meals, and before people know it they have become part of the Trepp extended family.