HR & Payroll Coordinator: Onboarding & Compliance

ADP, Inc.; California (MO); On-site; USD 29,000 - 33,000; Full time

Job summary

ADP, Inc. in Valencia, CA is seeking an HR/Payroll Administrative Assistant to support onboarding, employee data management, and payroll processing on a bi-weekly schedule.

You will liaise between HR and employees and help coordinate events and benefits enrollment while ensuring accurate records. The ideal candidate has an associate degree or certification, 1–2 years in HR, and hands-on experience with ADP Workforce Now and MS Office.

Qualifications

• HRIS/payroll platforms experience required.
• Knowledge of I-9 compliance and verification.
• Strong organizational and multi-location coordination skills.
• Excellent written and verbal communication abilities.
• Discretion with confidential employee information.
• Proficiency with Microsoft Office (Excel, Word, Outlook).
• Strong time management in a fast-paced HR environment.
• Teamwork across locations and departments.

Responsibilities

• Maintain personnel files, records, and HR databases.
• Answer employee questions on policies, benefits, and hiring.
• Process payroll using ADP Workforce Now and audit benefits.
• Complete Form I-9 and maintain documentation.
• Assist with onboarding, offboarding, and background checks.
• Support recruitment and interview coordination.
• Plan and execute benefits enrollment and employee events.
• Perform other duties as assigned.

Skills

HRIS/payroll platforms

I-9 compliance

Organizational skills

Written and verbal communication

Confidentiality

Microsoft Office Suite

Time management

Cross-location coordination

Education

Associate degree or certification

Tools

ADP Workforce Now

Microsoft Office Suite

Excel

Word

Outlook

Job description

ADP, Inc. in Valencia, CA is seeking an HR/Payroll Administrative Assistant to support onboarding, employee data management, and payroll processing on a bi-weekly schedule.

You will liaise between HR and employees and help coordinate events and benefits enrollment while ensuring accurate records. The ideal candidate has an associate degree or certification, 1–2 years in HR, and hands-on experience with ADP Workforce Now and MS Office.