Demo

Accountant

National Security Systems
Tustin, CA Full Time
POSTED ON 4/14/2026
AVAILABLE BEFORE 5/14/2026

Accountant

 

About the Opportunity:

Ready to build your career with a fast-growing company? National Security Systems is seeking a detail-oriented, hands-on accountant for AP, AR, and payroll with some overlap in inventory management and purchasing to support our growing operations. This role involves a mix of general accounting, and purchasing with management of customer billing and collections. You’ll work closely with management, operations and sales to ensure accurate financial reporting.

 

Key Responsibilities:

  • Post accounts receivable deposits and credit card payments
  • Process accounts payable and ensure timely/accurate vendor payments
  • Perform bank and credit card reconciliations
  • Support accounts receivable collections
  • Oversee data entry of new customers
  • Oversee invoicing is being done accurately
  • File quarterly sales (use) tax return
  • Assist with month-end close and reporting tasks

 

Qualifications:

  • Bachelor’s Degree in Accounting, Finance, Business, or equivalent experience
  • 2 years of accounting or finance experience
  • Must have attention to detail and accuracy
  • Strong knowledge of GAAP and accounting best practices
  • Proficient in Microsoft Office (Excel, Word, Outlook); advanced Excel preferred
  • Able to learn industry specific accounting software

Secondary Qualifications:

  • Applicants must be able to pass a background check.
  • Regular, reliable, predictable attendance.

About us:

National Security Systems is one of California’s fastest growing alarm installation and service companies, with over thirty-seven years of protecting lives and property. The people who join us in this window will have more visibility, and more opportunity to shape how we grow than anyone else who joins later. If that sounds like the kind of place you want to build a career, come join us today.

 

Benefits:

401(k)

Health insurance

Paid time off

 

Job Scope:

Job Type: Full-time

Salary: $66,000.00 - $73,000.00 per year

Schedule: 8-hour shift Monday through Friday 8 AM to 5PM

We are located on Tustin, CA

 

Security clearance:

Confidential (Required)

Company Description
Since 1989 National Security Systems has provided worldwide installation and service of security alarms, fire alarms, access control systems, and security cameras. With over thirty-Seven years of protecting lives and property, installations installed worldwide and uncompromising commitment to customer service we are California’s fastest growing alarm installation and service company. Ready to build your career with a fast-growing company? National Security Systems is the place come join our team now.

Salary : $66,000 - $73,000

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