Big Brothers Big Sisters staff is a compassionate and dedicated group of individuals, willing to do whatever it takes to help change children’s lives for the better.
Leading us in the right direction
Tina Rose – Chief Executive Officer
A San Diego native, Tina has more than two decades of experience in the non-profit sector, with a focus on youth serving organizations. Tina independently opened a Foster and Adoption branch office in San Diego, and then conducted all facets of the marketing, certification/training and office management as the office grew. In 2004, she began her career with Big Brothers Big Sisters of San Diego County. Tina started working in the Program Department, then in 2005 became the Marketing Director, in 2015 the Director of Marketing & Events and in 2017 the Vice President of Operations. Tina works diligently with the BBBS Board and the greater community to build awareness of the need for more mentors and funding to support the life-changing programs offered by Big Brothers Big Sisters. Tina graduated summa cum laude from Vanguard University and was a scholar athlete, playing four years of collegiate volleyball. Tina is an active mentor and community volunteer. She supports various causes, such as the Sharp Mary Birch Hospital NICU, Voices for Children CASA program, Miracle Babies, The American Cancer Society and Flood Church.
(858) 746-9117 TinaR@SDBigs.org
Talia Katzir – Director of Philanthropy
Talia came to Big Brothers Big Sisters of San Diego County in May of 2015 and brought with her a decade of non-profit experience. Joining us from Los Angeles, Talia worked for an international educational organization for several years, and previous to that, worked in marketing and recruitment for Jewish Big Brothers Big Sisters of LA. Talia holds an MBA with a focus on Social Enterprise from Pepperdine University in Malibu and attended UCLA for her Bachelors degree.
(858) 746-9116 TaliaK@sdbigs.org
Claudia Aldana Robles – Program Director
Claudia Aldana Robles is Director of Community Mentoring (CM) Programs at Big Brothers Big Sisters of San Diego County and joined the team in 2006. She has served in a variety of roles, including working directly with families and volunteers, cultivating partnerships within the community and developing special programs. She helped create and launch the Hermandad initiative and spearheaded several grant-funded projects. Prior to joining the team, Claudia began her career working with child victims of abuse, neglect and abandonment. In her current role, she provides support, guidance, and leadership to the CM Program department. She ensures that all CM programs and initiatives comply with local and national standards. Claudia holds a B.A. in Sociology and Education from the University of California, Berkeley.
(858) 746-9145 ClaudiaA@SDBigs.org
Renee Patey- Director of Finance & Operations
Renee joined BBBS of San Diego County in April of 2022 as Director of Finance & Operations (DFO). Renee brings over 13 years’ experience in nonprofit financial management and organizational effectiveness, and a dedication to children, youth, and families. As DFO, Renee provides management and oversight for all finance, HR, IT, and facilities functions for the Agency, as well as a leadership among BBBS staff and Board. Renee holds a B.A. in Human Geography from the University of Georgia and a M.A. in Political Science from Colorado State University. When not at her desk or working on a spreadsheet, you are most likely to find Renee combing the beaches of San Diego, listening to the latest podcasts, dreaming up her next great adventure.
( 858) 746-9154 ReneeP@sdbigs.org
Mae Briseño – Program Manager of Match Support & Special Initiatives
Mae began her career with Big Brothers Big Sisters in June of 2007 as the Amachi Match Support Specialist, where she served children of incarcerated parents. She has had varying roles since then as an Enrollment and Matching Specialist, Lead Match Support Specialist and currently as the Program Manager of Match Support and Special Initiatives. Mae has studied abroad in France and has experience working with youth around the globe in countries such as Japan, Ecuador and Mexico. She’s conducted field research in Oaxaca, Tijuana and La Paz. She has an extensive background of over a decade practicing her education and training with the children of vulnerable populations. Mae holds a Bachelor’s Degree from Boston University and a Master’s Degree in Latin American studies with concentrations in both Cultural Anthropology and Religion from San Diego State University.
(858) 746-9166 MaeB@sdbigs.org
Mariela Nuza Cohen – Senior Program Manager
Mariela started her career with Big Brothers Big Sisters of San Diego County in July of 2007 as part of the Marketing Department. In 2012, she became a Program Manager and shortly after a Senior Program Manager, overseeing the enrollment and matching of all volunteers and children across the Community Mentoring programs. Mariela holds a B.A in International Business with an emphasis in Management and Spanish from San Diego State University and has studied abroad in countries like Mexico, Chile and Spain. She also served on the Board of a local non-profit, Amigos de las Americas from 2011-2015.
(858) 746-9146 MarielaN@sdbigs.org
Diana Valdes – Marketing & Outreach Manager
As a former social entrepreneur, Diana dedicated her career to bridging the gap between cultural movements and structural change. She began her career working for a grass roots non-profit where she contributed to fundraising efforts and led a creative team to launch the organization’s first YouTube channel in efforts to raise awareness about mental health issues. While finishing her undergraduate degree at University of California San Diego, she organized and led a research team through the initial phases of a clean tech startup looking to ‘close the loop’ in the fashion industry while looking to shift cultural norms of how clothes are consumed. She then was recruited to join the sales executive team of a San Diego native software startup where she consulted for Experiential Marketing and Public Relations agencies.
Diana aims to become a catalyst of change in the evolving nature of societies. She speaks to the need to learn from natural systems while adopting an innovative approach to the way in which we think of cultural networks and social structures of today. She is passionate about creative expression, biomimicry inspired innovations and providing entrepreneurial opportunities to underrepresented communities. Diana has volunteered her time with sustainable community projects in Nepal, Mexico and the U.S. She is an active mental health advocate and is currently working on writing her first book, which aims to raise awareness towards mental health issues.
(858) 746-9151 DianaV@SDBigs.org