MEET THE 2026 - 2027 MANAGEMENT ASSISTANTS
TYLER COARI
Master of Public Policy
Tyler.Coari@longbeach.gov
Tyler Collins Coari (he/him/his) is a current Management Assistant, rotating through the Energy and Environmental Services Department, City Manager's Office, Parks, Recreation and Marine Department, and Financial Management Department.
Tyler holds a Master of Public Policy and a Bachelor of Arts in Political Science from California Polytechnic State University, San Luis Obispo. His graduate capstone project examined tenant protection policies across 35 cities in Los Angeles County, reflecting his broader interest in housing, land use, and transportation policy and his belief that land use decisions sit at the foundation of most public policy challenges.
During his time at Cal Poly, Tyler was deeply engaged in student leadership and governance, serving as Vice President of Finance for the California State Student Association (CSSA) and as Chief of Staff for Associated Students, Inc. (ASI). In addition to these roles, he co-founded the San Luis Obispo Tenants Union (SLOTU), where he organized renters, built coalitions with community partners, and advocated before local government for stronger tenant protections. He also served on the City of San Luis Obispo's Active Transportation Committee, advising on bicycle and pedestrian infrastructure projects. Tyler additionally spent two summers in Washington, DC, interning with the Bipartisan Policy Center's Human Capital team and the office of Congressman Salud Carbajal (CA-24).
DARIELLE GREEN
Master of Public Policy
Darielle.Green@longbeach.gov
Darielle Green (she/her/hers) is a current Management Assistant rotating through the Technology and Innovation Department, City Manager’s Office/Health Department, Financial Management Department, and City Manager’s Office.
Darielle earned a Bachelor of Arts in Public Affairs and African American Studies and a Master of Public Policy with concentrations in Health Policy and Education Policy from the University of California, Los Angeles (UCLA). She also completed UCLA's Global Health and Social Services Certificate and Luskin Leadership Development Certificate programs. Her graduate capstone, A Migrant Child's Search for Support: Identifying Child-Friendly, Developmentally Appropriate Practices for Unaccompanied Migrant Children, reflected her longstanding commitment to advancing equitable outcomes for vulnerable populations.
Before joining the City of Long Beach, Darielle worked with the Hospital Association of Southern California (HASC) and Communities Lifting Communities (CLC), where she supported regional initiatives focused on workforce development, birth equity, homelessness, and cross-sector collaboration. Her work contributed to the regional report, Focus on Homelessness in Los Angeles County: Aligning Hospitals, Health Systems, and Other Stakeholders to Identify and Implement Effective, Scalable Solutions.
Throughout her career, Darielle has remained dedicated to improving health outcomes and advancing equity through research, policy, and community partnerships. She has served as a College Academic Mentor at UCLA, a Blue Shield Behavioral Health Intern and Los Angeles County Intern Coordinator with Health Career Connection, an Advisory Board Member for the USC California Street Medicine Collaborative, and a Leadership Council Member for the Los Angeles County Department of Public Health's African American Infant and Maternal Mortality Initiative (AAIMM).
Outside of work, Darielle enjoys cooking, fashion, staying active, and spending quality time with family and friends.
SEBASTIAN FERNANDEZ
Master of Public Policy
Sebastian.Fernandez@longbeach.gov
Sebastian Fernandez (he/him/él) is a current Management Assistant rotating through the Financial Management Department, Public Works Department, City Manager's Office, and the Police Department.
Sebastian holds a B.A. in English from Cornell University and a Master in Public Policy from the Harvard John F. Kennedy School of Government, where he was an Equity Fellow with the Center for Public Leadership. In May of 2026, he was awarded the Taubman Center Urban Prize for his master's thesis research on LA County's Measure G reform, titled "A New Face for Los Angeles: Preparing for LA County’s First Elected Executive."
Born and raised in Atlanta, Georgia, Sebastian is driven by his belief in the equal dignity of all people. Deeply concerned by rising inequality, he is passionate about local government because he believes public investment is essential to breaking cycles of urban poverty and racial disparity. Sebastian first heard the call to public service in 2022 when he moved to New Orleans to support recovery from Hurricane Ida. Through working at the Louisiana Supreme Court, he expanded access to civil legal aid and Spanish-language legal resources in the aftermath of the storm. At Harvard, Sebastian became involved with the Taubman Center for State and Local Government and the Bloomberg Center for Cities, through which he completed projects for the City of Scottsdale, AZ, the City of Charleston, SC, the Town of Belmont, MA, and the Los Angeles County Governance Reform Task Force.
During his free time, Sebastian enjoys exercising in the gym, running long-distance, and cooking new dishes to make up for all those burned calories. He is an avid reader of classics and a music addict, specializing in hip-hop production.
