Board of Trustees
Board of Trustees
Officers of the Board
President: Marci Dollinger
Vice President: Martin Lowenstein
Secretary: Ruth Rosenthal
Treasurer: Dave Horowitz
At Large: Barbara Iungano, Matt Wulfstat
Trustees
Michelle Barenbaum
Mariah Calarco
Sofia Chancey
Marci Dollinger
David Donn
Joe Fraiman
Hallie Goldstein
Steve Grossman
David Horowitz
Barbara Iungano
Erin Kahn
Amy Kux
Martin Lowenstein
Roman Polonsky
Ruth Rosenthal
Tony Smorgon
Eric Wiesen
Matt Wulfstat
Michelle Barenbaum
Michelle joined the Brandeis Marin Board of Trustees in 2021-2022 and serves on the Governance committee. Brandeis Marin has played and continues to play a central role in her life. Michelle’s son, Sam, graduated from Brandeis Marin in 2019, and her son Henry, graduated in 2022. Michelle is the immediate past president of the Brandeis Marin Parents Association, and her husband, Daniel, is an alum, where he started in Brandeis Hillel Day School’s inaugural year, in 1978. Michelle is dedicated to the well-being of children. She is a teacher at Winston Preparatory School in San Rafael, which offers innovative and unique focus curricula for students with learning differences. She is also a Marin Court Appointed Special Advocate (CASA), where, since 2015, she has formed bonds with youth in different places in the foster care system and advocates on their behalf to government welfare and education institutions and courts. Michelle is a proud Chicagoan and earned her BA from the University of Wisconsin, Madison and her MPH from Emory University.
Mariah Calarco
Mariah is excited about everything that is Brandeis Marin. She joined the Brandeis Marin Board of Trustees in 2021-2022. The school has had a profoundly positive impact on her family and son, Charlie (Class of 2023), who has been given a sense of community and belonging at Brandeis that is far from given for a kid as seriously disabled as he is. Mariah has actively volunteered at Brandeis since her son entered kindergarten, including serving two years on the Executive Board of the Parent Association. Before having her son, Mariah worked in special education and women's health. Both of these areas were places in which she found a passion for service, and a deep interest in problem solving to cater to individuals' needs across a variety of settings. Mariah is an avid hiker and loves all things nature. She grew up in Chicago, but has lived in the Bay Area since 2001 and has lived in Fairfax since 2011 where she lives with Charlie and their two dogs.
Sofia Chancey
Sofia joined the Brandeis Marin Board of Trustees in 2021-2022 and has served on the Advancement Committee and the Strategic Marketing committee. This year, Sofia will serve as Chair of the Diversity, Equity and Inclusion Task Force. She has been an active volunteer from the time her family moved to Marin from Melbourne, Australia and joined the Brandeis community in early 2017. Sofia and her husband, Jeff, were looking for a seamless transition for their two daughters from their Jewish education at the King David School in Melbourne and, from the moment the family stepped onto the campus, they knew they were home at Brandeis. Sofia’s younger daughter is a current Brandeis Marin student and her older daughter is a 2020 grad. Sofia served as Secretary of the Parent Association in 2018 and 2019 and was on the Spring Simcha planning committee for 2020 and 2021.
Sofia is the Head of Strategy at Intune Collective, a strategy and management consultancy, and serves on the Board of the Northern California chapter of the Healthcare Information and Management Systems Society (HIMSS). Prior to these roles, Sofia was a Managing Director with Accenture for 21 years in the US and Australia. Sofia co-founded, and held various roles including that of President, Get Your Frock On! a non-profit formed to raise awareness of and funds for Ovarian Cancer Research from 2010 until 2016, donating 100% of funds raised to the Ovarian Cancer Research Foundation of Australia.
Marci Dollinger
Marci is thrilled to be President of the Board of Brandeis Marin, after serving on the faculty as a teacher for 12 years. Her roles on the Board include serving as Chair of the Advancement committee, Vice President of the Executive committee, member of the Governance committee and co-chair of Staff/Faculty happiness project on behalf of the Board. Marci chaired the Community Engagement workstream for the Strategic Planning process in 2021. Professionally, Marci has been a Jewish day school educator for her entire teaching career. Marci currently serves on the Boards of A4BGU and Camp Newman and past board service includes leadership at the Osher Marin JCC, Congregation Rodef Sholom, Jewish Family and Children’s Services, the Jewish Community Relations Council and co-President of the Osher Marin JCC preschool. Marci is an alumna of the Wexner Heritage Program and A4BGU’s Zin Fellows Leadership Program. She holds a Bachelor of Arts in English from Brandeis University, and a Master’s in Education and teaching credential from UCLA. Marci and her husband, Marc Dollinger, Ph.D., (past President of the Brandeis Hillel Day School Board) live in San Rafael, California, and have two daughters – Rivi (Rebecca) (masters student at CIIS for creative arts therapy) and Shayna (HUC Rabbinic student), both alums of our beloved Brandeis.
David Donn
David joined the Budget and Finance Committee in April 2023. He and his wife have a son, Oliver, in the 7th grade at Brandeis Marin. David co-founded DonnCo., an independent workers’ compensation managed care advisory firm in 2002 and advises large school districts, cities, counties, and corporations on reducing the medical costs associated with workplace injuries and illnesses. Prior to DonnCo, David was a Vice President for the workers’ compensation division of Health Net, a healthcare insurance provider. David has a B.S. degree from NYU’s Stern School of Business and currently serves on the advisory committee for the San Francisco Rebels, a nonprofit organization established to empower inner-city youth and their families. David lives in Kentfield with his wife Sarah, son Oliver, and two French bulldogs, Remy and Zoey.
Joe Fraiman
Joe is looking forward to joining the Brandeis Marin Board of Trustees in 2024. Professionally, Joe began his career in hedge funds and has been a serial entrepreneur since 2012, with a focus on leveraging technology to improve real estate investing. He has raised over $2.2B in his career across four organizations and hopes to be able to help Brandeis with its fundraising goals as well. Joe grew up in a small fishing town in Alaska and has long believed in lived experience as an important component of education. He once hiked 1,000 miles on the Appalachian Trail, climbed Mt. Kilimanjaro, and rode the Trans-Siberian Railway from Moscow to Beijing. Joe is a Kansas City Barbecue Society Certified BBQ judge and an avid mountain biker. He is the proud father of two Brandeis students (class of 2032 and 2033) and the proud husband of Jen Fraiman, the incoming Brandeis Parents Association President. He studied Computer Science and Philosophy at Dartmouth College and NYU.
Hallie Goldstein
Hallie (Brandeis Hillel class of 2010) majored in psychology at Scripps College. After extensive involvement with on-campus Jewish causes, she moved to Tel Aviv at the end of 2019. While living there, she worked as a content writer at a mental health app followed by a global financial technology company. She loved working in tech and learning about the world of startups for several years, but is excited to finally be pursuing her long-standing dream of becoming a clinical psychologist. She is currently a doctoral student at the Wright Institute in Berkeley where she is taking classes and seeing patients. She feels incredibly honored to be an alum representative on the board with such a deep connection to and affinity for the school.
Steve Grossman
Steve currently serves on the Budget and Finance committee and is also chair of the Audit committee. He recently retired and is presently doing some restaurant consulting. After graduating from Baruch College in New York City, Steve worked for an international CPA firm in their New York office, specializing in restaurants, hotels and casinos for 15 years. After becoming a partner in the firm, he transferred to their San Francisco office and worked there for the next ten years. In 1994, Steve left public accounting to become the CFO for one of the largest Burger King franchises in the country, a position he held for the next 21 years before retiring. During his time in the Bay Area, he has served as President and several times as Treasurer for Congregation Kol Shofar. Currently he is an active member on their Finance Committee. Steve lives in Mill Valley with Jackie, his wife of 49 years. He has two sons and two grandsons who also live in the Bay Area. Steve’s youngest son attended Brandeis from 3-8 grade in the late 80’s and early 90’s. Steve is a sports nut and has season tickets to several Bay Area sport teams.
David Horowitz
David is the Treasurer of our Board of Trustees and a longtime member of the Budget & Finance Committee. Professionally, he founded Agilon Capital, LLC, a systematic, quantitative hedge fund that specializes in corporate bonds, and is headquartered in San Francisco. After selling his firm to Centiva Capital, he became the Head of Systematic Credit for Centiva. Prior to founding Agilon, David worked at BlackRock, Inc. as the Deputy CIO of Systematic Fixed Income. He has served on the Board of Urban Blazers, an organization that was dedicated to providing transformative outdoor experiences to under-resourced kids in Philadelphia. David graduated from the University of Pennsylvania with a BS in Computer Science Engineering and a BA in Finance. David lives in Mill Valley, with his wife and three children, two of whom currently attend Brandeis Marin, and one who is a recent graduate.
Barbara Iungano
Barbara and her family moved to Marin County from San Francisco in 2016 and found community at Brandeis Marin. Her daughter, Eloise, is a seventh grader at the school. Barbara has been active in the Parents Association and is co-chair of the Advancement Committee. She is also an active member of the Diversity, Equity and Inclusion Task Force at Brandeis.
Currently, Barbara is CFO of a family foundation and sits on the Board of Buen Dia Family School, a pre-school in San Francisco. Professionally, she is a chiropractor and has dabbled in organic farming. She and her family live a semi-bucolic lifestyle with their pets along with chickens and goats, in San Rafael.
Erin Kahn
Erin joined the Brandeis Marin Board of Trustees in 2019-2020 and has served on many committees. She is currently the Senior Manager of Studio Operations at Epic Games (i.e. Fortnite, Unreal Engine, Gears of War). Prior to Epic, Erin spent 14 years at Lucasfilm in a variety of roles - the most recent of which was in Global Talent Development. Her film credits include: Black Panther, Star Wars: The Force Awakens, Solo: A Star Wars Story, Star Wars: Rogue One, Avengers Endgame, Ready Player One, A Quiet Place, Doctor Strange, The Revenant, Indiana Jones and the Kingdom of the Crystal Skull, Strange Magic, Unbroken, and, Pacific Rim, among others. She sits on the advisory board of the The Tug McGraw Foundation, founded by multiple grammy winner, Tim McGraw. She has served on the Contemporary Jewish Museum’s annual gala committee and has been a past member of the Jewish Community Federation’s Power of One gala committee. Erin is an alumna of Brandeis Hillel Day School (Marin) and lives with her husband and three children in San Francisco. She loves traveling, soccer, biking and is always available for karaoke.
Amy Kux
Amy served on the Brandeis Marin board from 2017-2023 and is happy to return to Board service in 2024. She has been a long-time member of the Budget and Finance Committee and served as the Treasurer. She is a current parent as well as an alumni parent. Professionally, Amy Kux is a seasoned CFO with over 20 years of experience, with the recent transition to coaching younger financial professionals. She has a proven management and business leadership track record, particularly within high-growth international technology start-ups.
Martin Lowenstein
Martin is the Executive Director of Friends of China Camp, which operates China Camp State Park. He served six years on the Board of Brandeis Marin and chaired the Advancement Committee. Representing the Jewish Community Federation, he sits on the board of the Israel Religious Expression Platform. From 2010 to 2013, he was Board Chair of the Jerusalem American International School, where he oversaw the growth of enrollment from 65 to 149 students and the doubling of the physical plant. He also chaired capital campaigns at Peninsula Temple Beth El and at The Marin School. Martin received his MBA from Georgetown University and his BS in Civil Engineering from Tufts University. Martin and his wife, Inbar, have three children: Tamara ’20, Ben ’22, and Maya ’26. In his spare time, Martin enjoys running at China Camp, reading spy novels and spiritual books, going to farmers markets with Inbar, and making his children laugh.
Roman Polonsky
Roman has moved around the world many times. He has been to school in Moscow, a university in Sydney, including jobs in London and Geneva, before finally settling in San Francisco with his wife and three kids. His son, Austin, graduated from Brandeis Marin and is now at The Bay School. Twins, Melina and Jolene, are going into the 8th grade at Brandeis Marin. Roman is a software engineer who has worked for many technology companies in the Silicon Valley. Currently, he builds data solutions for clients around the world. Roman is passionate about being involved in the school's parent activities. He has served on the Parents Association and is a co-chair of last year's Simcha party.
Ruth Rosenthal
Ruth has been involved with Brandeis Marin since its inception in the late 1970s. First as a campus partner board member, Ruth served for 13 years on the MJCC board, ending her tenure as board president in the early 1990s. All the while, Ruth has worked at Brandeis Hillel Day School both in Marin and SF and then at Brandeis Marin. She has taught most lower school grades, acted as school librarian and most recently as Dean of Lower School. Ruth looks forward to participating in the Brandeis Board and hopes to offer an historical perspective to current agendas. Since retiring from Brandeis Marin in 2021, she has enjoyed working with individual students at local elementary schools and studying Spanish. She wrote a cookbook-memoir In Search of Rugelach and has loved the long stretches of time to read and cook. Ruth is most proud of her two sons, Joel (BHDS ‘98) who is a Jewish educator in San Francisco and David (BHDS ‘02), who works in property management in Manhattan. On any given sunny day, you may see Ruth and her partner, Dan, riding their e-bikes on trails and roads all over Marin.
Tony Smorgon
Tony has served as a member of the Brandeis Marin Board of Trustees from 2018-2020. He has served on the Advancement Committee, Head Support Committee and the Strategic Planning Committee. Tony is a Director of the Jack and Robert Smorgon Families Foundation. When he was living in Australia, he was the Chairman of the Mount Scopus College Foundation, a K-12 Jewish day school. He also performed a key role in the formation and growth of Keren Hayesod-UIA’s global forum to strengthen leadership and commitment from the next generation of major donors to Israel. Tony is a Wexner Heritage Alumni. From 2018-2020 Tony served as a delegate to the Wexner Alumni Council. Currently, Tony is actively engaged in supporting Brandeis University’s initiatives on antisemitism in higher education. Tony’s family office, Escor, is a privately owned Australian company focused on investments, property and philanthropy. Tony and his wife Jennifer have five children, and their oldest son, Noah who graduated from Brandeis Marin in 2019, is a freshman in College.
Eric Wiesen
Eric is excited to join the Brandeis Marin Board of Trustees in 2024-2025 having previously served on the Budget & Finance Committee. Eric grew up in New York before moving to San Rafael in the mid-1980s. He has an 8th grader, Elliot, and a 6th grader, Lyra, currently attending Brandeis Marin. Eric is a venture capitalist at Bullpen Capital, an early-stage venture capital fund in San Francisco, where he invests in technology startups. Previously, Eric was a startup founder, and an attorney, and was an intern in the only truly infamous White House Internship class in the fall of 1995. He is also a Board Member at Backyard Kids Theater, an arts-nonprofit in Marin and Sonoma counties.
Matt Wulfstat
Matt joined the Board of Trustees in 2021-2022, bringing his experience as the CEO and President of Stratford School for nearly a decade. He led the school’s growth from 200+ to 800+ employees and from 6 to 18 campuses. He currently serves on a number of educational boards including ISG, a subsidiary of International School Services and KSS, a growing group of immersion language schools. Matt has also served on the Executive Committee of the Brandeis School of San Francisco’s Board of Trustees and chaired the Tamalpais High School Site Council.
Matt is a former Wexner Heritage Fellow and Young Presidents Organization (YPO) member and has been a speaker at various conferences on educational innovation and investment. Matt received an MBA and Masters in Education at Stanford and a BA in Economics with Honors from Stanford University. He and his wife, Amanda, have four children and their son, Jacob, is a recent graduate of Brandeis Marin. In his free time, Matt likes to ski, mountain bike and plunge with his family into Three Wells, the strikingly chilly swimming hole near their home in Mill Valley.