Karissa Zavala
Fontana,CA
Summary
Driven and detail-oriented Human Resources and Project Administrator with experience supporting HR operations, construction administration, payroll compliance, and onboarding. Strong background in Industrial-Organizational Psychology with a reputation for adaptability, dependability, and supporting teams in fast-paced environments.
Overview
10
10
years of professional experience
Work History
Human Resources Administrator
OHLA USA, Inc.
Irvine
12.2025 - Current
- Supported HR operations for site and office employees across multiple projects
- Coordinated onboarding, employee documentation, E-Verify, and I-9 compliance
- Maintained personnel records and assisted with employee relations inquiries
- Prepared employee separation and offboarding documentation
Project Administrator
OHLA USA, Inc.
Irvine, CA
04.2025 - Current
- Provided full-cycle administrative support for large-scale construction projects
- Assisted with owner and subcontractor billings and certified payroll documentation
- Managed accounts payable processes and compliance documentation
- Supported payroll verification and month-end reporting
Moderate to Severe Teacher Assistant
Fontana Unified School District
Fontana, CA
01.2022 - 04.2025
- Assisted with classroom management and instructional support
- Collaborated with teachers and parents to support student success
- Collaborated with educators to adapt curriculum materials for diverse learning styles and abilities.
- Monitored student progress, providing feedback and encouragement to enhance academic performance.
Store Associate Level 5
In-N-Out Burger
Ontario, CA
05.2016 - 03.2024
- Delivered high-quality customer service in a fast-paced environment
- Supported team operations and customer relations
- Utilized strong multitasking abilities to manage multiple responsibilities simultaneously during busy periods.
Education
Master of Science - Industrial-Organizational Psychology
National University
09-2024
Bachelor of Arts - Psychology (Industrial-Organizational Emphasis)
Brandman University
08-2022
Skills
- Human Resources Administration
- Onboarding & Compliance
- E-Verify & I-9
- Project Administration
- Certified Payroll
- Documentation Management
- Communication
Timeline
Human Resources Administrator
OHLA USA, Inc.
12.2025 - Current
Project Administrator
OHLA USA, Inc.
04.2025 - Current
Moderate to Severe Teacher Assistant
Fontana Unified School District
01.2022 - 04.2025
Store Associate Level 5
In-N-Out Burger
05.2016 - 03.2024
Master of Science - Industrial-Organizational Psychology
National University
Bachelor of Arts - Psychology (Industrial-Organizational Emphasis)
Brandman University