headshot of Ziem Neubert

Ziem Nguyen Neubert

Executive Director
Ziem joined Project Cornerstone in May 2015, after serving in the public school system for over 20 years as classroom teacher, Educational Services coordinator, assistant principal, and principal. Currently, Ziem collaborates with schools and partners to help them build Developmental Assets for their communities. She trains administrators, faculty, staff, parents, and community members in various workshops, including the “Take It Personally” series. Ziem holds a Master of Arts in Education (Administration and Supervision) from San Jose State University, a K-12 Multiple Subject Teaching Credential, and a Bachelor of Arts in Psychology with a minor in Music from the University of California at Santa Cruz. She is a graduate of the Silicon Valley Organization’s “Leadership San Jose 2017” class, a cohort of professionals who explore a range of sectors that together create a vibrant community, with the goal of expanding their own civic engagement. Ziem is a mother of two children and enjoys cooking, Pilates, learning, volunteering, and spending time with her family.

Lori Maitski

ABC Program Coordinator, Preschool/Transitional Kindergarten Coordinator
Lori Maitski first became involved with Project Cornerstone as a parent facilitator for Taking Asset Building Personally (now known as Take It Personally) study groups in 2002, and joined our staff in 2004. She works with adult volunteers in the Asset Building Champions (ABC), Preschool/Transitional Kindergarten, and FUNvisor programs and is a facilitator for Take It Personally study groups. Lori’s prior experience includes teaching a bilingual kindergarten/first grade classroom and more than ten years of active volunteerism in her children’s schools. Lori enjoys helping other parents learn more about the asset approach to parenting, keeping track of her two adult children and spending time with her husband.
Picture of Debbi Headley

Debbi Headley

Middle School Coordinator
Debbi is thrilled to be a part of the Project Cornerstone team as the Middle School Services Coordinator. She is passionate about education and helping students and the caring adults in their lives thrive. Debbi has a Bachelor of Science degree in Biology from the University of Michigan and a secondary teaching credential. She also has a master’s degree in Educational Leadership from San Jose State University and an administrative services credential. She taught high school math and science and was a high school administrator. She also currently mentors teacher candidates through the Stanford Teacher Education Program. Debbi and her husband have a full and joyful life with their four school-aged children. She loves volunteering at her children’s schools, including being actively involved in the Project Cornerstone ABC program as a reader and school lead.
photo of staff member Sofia Montejo

Sofia Montejo

School Support Specialist & Interim Los Dichos Coordinator
Sofía was born and raised in Mexico City where she started her career as an English as a Foreign Language teacher and teacher trainer for the prestigious institute The Anglo in Mexico. She worked with children, teenagers and adults, and quickly realized the impact of motivation in the learning process. She moved to Singapore where she taught Spanish and French at United World College. Here she worked with children and parents from all corners of the globe. Through working with a diverse yet tightly-knit community she saw the role of caring adults in youth success. After 11 years, she came to Silicon Valley as a mother of 2. She has been a volunteer for Project Cornerstone for over 6 years, and brings a passion and commitment to raising healthy and strong children who feel they belong wherever they are. She loves words, learning about different cultures, and spending time in nature with her husband and 2 boys.

Ladan Ralston

Youth Services Coordinator
Ladan has been a Project Cornerstone ABC volunteer at her children’s school for over 8 years. She has been active in her work with the community, local elementary school and middle schools for the last decade. Ladan drives Project Cornerstone’s Expect Respect Workshops in elementary and middle schools for students with the goal of creating a caring school environment for all. With a degree in Business Administration and Management, Ladan comes from a background of leading sales organizations in the Silicon Valley for over 15 years. In her free time, she loves cheering for her teenage kids in sports, school, and in life as well as time at the beach with them, her husband and dog.
Image of Rona Brodrick

Rona Brodrick

Development and Communications Coordinator
Rona is excited to be a part of the Project Cornerstone team after being introduced to the programs when her children were in elementary school. She has been an active community and school volunteer for the past 10 years, including starting a middle school Cornerstone Secret Service Club, with the mission of building a caring school climate through random acts of kindness. She also volunteered for four years at a high school college and career center. She comes with an extensive background in public relations and communications. At Project Cornerstone, she is responsible for grant writing, program reporting and evaluation, events and communications.
Sarah Moore

Sarah Moore

Administration Coordinator
Sarah first came to Project Cornerstone as a volunteer at her childrens’ elementary school, and spent several years as an ABC lead. With 13 years of international event management experience, she has planned and executed corporate events in over 20 cities around the globe. She has also worked as a personal concierge, helping busy people manage their lives. Today she puts her organizing skills to good use supporting the Project Cornerstone team in both daily operations and special events. Born and raised in the UK, she left in 2001 to see and experience more of the world. Today, having lived and worked in Europe, Asia, and the US, she appreciates the experiences she’s gained from living in multi-cultural societies. She loves spending time with her family and enjoys traveling, hiking, and cooking.