Jonathan Nussur
Executive Director
of Stiles Hall
Jonathan Nussur is a strategic, mission-driven executive with over 15 years of leadership experience spanning education, public health, and community development. As Executive Director of Stiles Hall, he leads efforts to expand educational equity, develop emerging leaders, and strengthen partnerships across UC Berkeley and the broader Bay Area community.
A UC Berkeley graduate in American Studies with a focus on Health Disparities, Jonathan brings a distinctive blend of public health insight, organizational strategy, and inclusive leadership. He is passionate about creating scalable systems that foster belonging, opportunity, and long-term sustainability within underrepresented communities.
Itcelia Segoviano
Assistant executive director
Itcelia Segoviano-Ramirez (she/her) was born and raised in the Coachella Valley. Itcelia’s involvement with Stiles Hall began as a mentor during her undergraduate years at UC Berkeley where she earned a Bachelor’s in Legal Studies and a minor in Education. Throughout her college years, she demonstrated a passion for community service and education. As her commitment deepened, she took on roles of increasing responsibility, evolving from a program coordinator to Director of Community Service Programs. Later, she managed the Experience Berkeley High School Program and now proudly holds the position of Assistant Executive Director, mirroring the essence of the Stiles motto “Where Leaders Grow.”
Jimmy Hawkins III
Program Manager
Experience Berkeley Transfer
Jimmy Hawkins III (he/him) is from Vallejo, CA, and graduated from UC Berkeley in 2023 with a Bachelor of Arts in Media Studies.
In managing the Experience Berkeley Transfer program, he aspires to eliminate barriers to higher education for underrepresented students statewide through culturally responsive mentorship and innovative approaches to leadership development.
Elaine Valenzuela
Program Manager
Pathways Coaching
Elaine Valenzuela(She/Her/Her’s) was born and raised in Huntington Park, California but her heart also belongs to Zacatecas and Durango, Mexico. She began volunteering with the community service programs back in August of 2017 and then became the Sylvia Mendez Elementary Tutoring Coordinator. She is continuing to build mentoring programs for elementary, middle, and high schools that provide pathways to success for both mentors and mentees.
Linda Smith
Office Manager
Linda is a UC Berkeley Alum with a specialty in Early Childhood Development. She blesses our home and stomachs with her wonderful cooking.
Marilyn Kihara
Controller
Marilyn has worked with Stiles Hall for 39 years, serving first in 1975 as the Director of the Educational Guidance Center.