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Programs & Professional Development, California

Bunmi Esho, California Executive Director

Bunmi Esho is the California Executive Director of Techbridge Girls based in Oakland, California. As Executive Director, she leads program operations, fundraising and strategic planning for the California region. Bunmi is committed to empowering girls to see themselves as STEM graduates and future leaders, a role she knows only too well as a STEM graduate herself.

Prior to joining TBG, Bunmi lived in Southeast Asia leading education programs and managing teams with local nonprofits, schools and most recently, the first and only Science Center in Cambodia, Kids City Asia Science, as Program Director. Ms. Esho has over 20 years of experience in the corporate, nonprofit and education sectors in both the United States and Cambodia. In addition to her current work in the San Francisco Bay Area, Bunmi has strong philanthropic ties to Southern California, where she served on the Board of several organizations including the Urban League of San Diego County, Women Give San Diego and Mission Valley Sunset Rotary Club.

Bunmi holds a B.S. in Chemical Engineering from the University of Texas at Austin and M.Ed. from the University of Arizona. She loves road trips and has traveled cross-country through the US and abroad.


Jaclyn Caldwell, Program Manager

Jaclyn Caldwell is committed to improving access to quality STEM education for girls. Having participated in the Techbridge Girls program in middle school, Jaclyn is a proud alumna and advocate for our girls. She is passionate about education, equity, and STEM. As a Program Manager for After School, she strives to break down barriers, ensuring that our girls build STEM skills, confidence, and have a community of support within our programs. She prides herself on being able to connect anything back to STEM because it is all around us, just try to stump her!

Jaclyn holds a B.S. in Environmental Systems with a minor in Marine Science from UC San Diego and attributes her initial interests in those fields to her experiences within Techbridge Girls. She has worked with youth in various informal education settings previously, including at summer camps, museums, and in the non-profit sector. Jaclyn also loves nature, especially anything related to marine turtles. She is a Girl Scout Gold Award recipient and in her free time, Jaclyn enjoys traveling, cooking, and playing softball.


Xueyong Liu, Program Facilitator

Xueyong Liu is an aspiring educator in math, music, and technology. She is passionate in fostering a sense of wonder and beauty in students on mathematical learning. She is currently a UC Berkeley undergrad studying Statistics and pursuing a teaching credential track. As a part-time Program Manager for Techbridge Girls After School program, she hopes to help create an inclusive and supportive community for girls to discover the fun and excitement of the engineering process and STEM curriculum.

Xueyong is also a Techbridge alum and has been in the high school program for 3 years. During those years in Techbridge, she was inspired to pursue a STEM major during her college career. Her interest in teaching formed through her experience in tutoring math and statistics at UC Berkeley’s Student Learning Center. There she formed an interest in teaching math in engaging methods and constantly seeking for the “aha” moments when students finally see the bigger picture of how different concepts connect.

Outside of school and work, Xueyong enjoys playing the violin with other fellow musicians, and curling up with a good book, warm cup of tea, and beautiful classical music.