Meet Our Staff
Executive Leadership
Rosamaria Murillo, Ph.D., LMSW – Chief Executive Officer
Gabriel Flores - Chief of Finance and Operations
Sandra Freitag – Director of Finance and Operations
Leah Meunier, PhD - Chief of Development and Communications
Luis Garcia – Chief of Technology and Analytics
Kori Hattemer - Chief of Programs
Lillian Acosta – Human Resources
Audrey Vivar - Director of Grants and Contracts
Data Analytics and Technology
Joao Rendon - Data Analyst
Development and Communications
Georgia Hernandez – Donor Relations Manager
Isabel Bernal– Communications Manager
Originally from Guanajuato, Mexico, Isabel became a U.S. citizen in 2011 and graduated Magna Cum Laude with a Bachelor of Arts in Education. Her journey began as an AmeriCorps member, sparking her passion for nonprofit work and family education.
As a mother of three, Isabel seamlessly integrates family values into her professional life. Beyond her managerial role, she is a talented professional photographer, adding a creative touch to her multifaceted skill set. Her recent position as Communications Manager reflects her dedication and leadership at El Buen, where she plays a pivotal role in shaping the organization’s communication and marketing strategies.