Summary
Overview
Work History
Education
Skills
Training
Timeline
Generic

Yaddira Castrejon

San Lorenzo

Summary

Empathetic and bilingual social worker (English/Spanish) with over six years of experience in child welfare and case management, now seeking to transition into a medical social work setting. Strong background in psychosocial assessments, crisis intervention, and care coordination. Adept at working with diverse, high-risk populations and supporting individuals and families through trauma and systems navigation. Committed to delivering culturally responsive, trauma-informed care in collaboration with interdisciplinary healthcare teams.

Overview

10
10
years of professional experience

Work History

Social Worker III

County of Santa Clara, Department of Family & Children’s Services
06.2018 - Current

Resource Family Approval (RFA) Social Worker

  • Conduct in-depth biopsychosocial assessments of prospective resource families.
  • Perform home visits and inspections to ensure compliance with county and state RFA standards.
  • Interview applicants to evaluate parenting capacity, trauma history, and environmental suitability.
  • Prepare comprehensive written assessments and maintain timely case documentation.
  • Guide families through the RFA process, including training coordination and support referrals.
  • Collaborate in Child and Family Team (CFT) meetings and staff case conferences.

Dependency Investigations (DI) Social Worker

  • Investigate allegations of child abuse/neglect and assess immediate safety risks.
  • Develop safety plans and coordinate emergency interventions and placements as needed.
  • Prepare detailed court reports.
  • Work in close coordination with law enforcement, legal representatives, and community agencies.
  • Connect families with support services including mental health, parenting, and substance abuse.

MSW 2nd year Intern

County of Santa Clara, Department of Family & Children’s Services
09.2017 - 05.2018
  • Provided case management to Non-Minor Dependents (NMDs) transitioning to independent living.
  • Conducted monthly in-person visits and comprehensive risk and safety assessments.
  • Supported youth in accessing educational, housing, mental health, and employment resources.
  • Authored detailed court reports and engaged in collaborative planning with interdisciplinary teams.

MSW 1st year Intern

Mount Diablo USD, Bay Point & Concord
09.2016 - 05.2017

Riverview Middle School & Mt. Diablo High School

  • Provided school-based counseling and case management for foster, homeless, and at-risk students.
  • Conducted outreach to 50+ youth, connected them to community-based resources.
  • Facilitated a Spanish-language support group for immigrant students.
  • Participated in Individualized Education Plan (IEP), Student Success Team (SST), Positive Behavior Team (PBT), Coordinated Care Team (CCT), and School Board meetings, contributing to multi-disciplinary planning and advocacy for student needs.
  • Acted as liaison between families, school staff, and service providers.

Child Care Worker

Creative Alternatives, Turlock, CA
05.2015 - 08.2016
  • Provided 24/7 care to foster youth in a group home setting.
  • Supervised family visits and transported youth to appointments and activities.
  • Taught life skills and modeled positive behavior in a structured, therapeutic environment.
  • Administered medications and managed crises using nonviolent intervention techniques..

Psychology Intern

California State University, Stanislaus, Turlock, CA
01.2016 - 06.2016
  • Provided individualized academic support to students on academic probation, focusing on strategies to improve their Grade Point Average (GPA) and overall academic performance.
  • Guided students through the General Education curriculum and coached them on effective time management and schedule balancing.
  • Identified student needs and referred them to appropriate campus resources, including psychological counseling, academic departments, the health center, and tutoring services.

Education

MSW - Children, Youth & Families (CYF), Title IV-E

California State University, East Bay
Hayward, CA
06.2018

BA - Psychology, Minor: Anthropology

California State University, Stanislaus
Turlock, CA
05.2016

Skills

  • Bilingual (English & Spanish)
  • Biopsychosocial Assessments
  • Crisis Intervention & Trauma Support
  • Case Management
  • Psychosocial Education & Counseling
  • Patient Advocacy & Resource Navigation
  • Multicultural & Bilingual Engagement (English/Spanish)
  • Collaboration with Interdisciplinary Care Teams
  • Documentation & Electronic Case Records

Training

Santa Clara County Department of Family & Children’s Services (2017–Present)

  • Engagement & Risk Assessment
  • Structured Decision Making (SDM)
  • Child Abuse & Neglect Investigations
  • Quality Parenting Initiative (QPI)
  • LGBTQ+ Youth Advocacy
  • Commercially Sexually Exploited Children (CSEC)
  • Court Report Writing & Testimony
  • Cultural Competency & Disproportionality

Title IV-E Program – CSU East Bay (2016–2018)

  • Indian Child Welfare Act (ICWA)
  • Trauma-Informed Practice
  • Multicultural Social Work Practice

Other Certifications

  • First Aid/CPR/AED – Creative Alternatives (May 2015)
  • Nonviolent Crisis Intervention (CPI) – Creative Alternatives (May 2015)

Timeline

Social Worker III

County of Santa Clara, Department of Family & Children’s Services
06.2018 - Current

MSW 2nd year Intern

County of Santa Clara, Department of Family & Children’s Services
09.2017 - 05.2018

MSW 1st year Intern

Mount Diablo USD, Bay Point & Concord
09.2016 - 05.2017

Psychology Intern

California State University, Stanislaus, Turlock, CA
01.2016 - 06.2016

Child Care Worker

Creative Alternatives, Turlock, CA
05.2015 - 08.2016

BA - Psychology, Minor: Anthropology

California State University, Stanislaus

MSW - Children, Youth & Families (CYF), Title IV-E

California State University, East Bay