Job Title: Payroll / Finance Assistant
Location: South Gate, CA
Schedule: Monday–Friday, 9:00 AM to 5:30 PM
Pay Rate: $23 - $25 per hour (DOE)
Position Summary:
Treston Security Services is seeking a detail-oriented and dependable Payroll / Finance Assistant to support our finance department with payroll processing, invoicing, and general accounting functions. This role is essential to ensuring the timely and accurate payment of employees, maintaining compliance with labor laws, and supporting overall financial operations.
Key Responsibilities:
- Process payroll for security personnel across multiple states and job sites
- Review and audit timesheets, verify hours worked, and ensure accuracy of wage calculations
- Track and input payroll adjustments, deductions, reimbursements, and bonuses
- Maintain up-to-date employee payroll records in accordance with company and legal requirements
- Support accounts payable and receivable: enter invoices, process payments, and reconcile transactions
- Assist with monthly financial reporting, general ledger entries, and expense tracking
- Coordinate with HR and operations teams for onboarding, pay rate changes, and terminations
- Respond to payroll and finance-related inquiries from employees and management
- Assist with year-end reporting, tax filings, and workers' comp audits
- Ensure all payroll and finance records are accurate and confidential
Preferred Software Experience:
- Professional Employer Organization platforms
- QuickBooks Online
- Excel (intermediate to advanced)
- Timekeeping/attendance systems
Qualifications:
- High school diploma or equivalent (Associate degree in accounting or business preferred)
- 1–2 years of payroll or general finance experience
- Familiarity with California labor and wage laws; multi-state payroll experience is a plus
- Strong attention to detail and organizational skills
- Excellent verbal and written communication skills
- Ability to manage sensitive information with discretion
- Bilingual (English/Spanish) is a plus
- Experience in the security industry is a plus but not required
Work Environment:
- Office-based role at our South Gate, CA location
- Collaborative and fast-paced environment supporting field operations across multiple states
