Photo of San Manuel Band of Mission Indians, Highland, CA

Accounts Payable Specialist

San Manuel Band of Mission Indians

26569 Community Center Drive
Highland, CA 92346



Under the general direction of the Accounts Payable Supervisor, the Accounts Payable Specialist is responsible for compiling invoice packets, verifying invoice accuracy, discrepancies, and submitting accounts payable reports to the appropriate recipient for verification. The Accounts Payable Specialist ensures compliance with the Gaming Commission’s Tribal Gaming Minimum Internal Controls (TICS) and the Gaming Commission Regulations (GCR), by studying the standards, enforcing adherence to requirements and advising management on needed actions.

Essential Duties & Responsibilities

1. Responsible for compiling invoice packets.  Verifies and analyzes invoices and purchase orders submitted from departments for accuracy, sales tax, general ledger coding, etc.  Maintains highly confidential records. Matches checks, Wires, ACH and Payment Plus support to payable voucher package. Reviews W-9’s and 1099 details for accuracy and processes 1099’s and 1042’s in accordance with federal requirements.

2. Investigates and reports any discrepancies found in matching vendor invoices against department requisitions, purchase order and/or receiving report, check request or contract.  Ensures compliance with regulatory requirements and conforms to industry standards, TICS and GCRs.  Maintains high level of customer service in accordance with San Manuel’s policy to provide consistent, timely and accurate delivery of accounts payable services.

3. Responsible for reconciling accounts payable invoices to ensure accuracy and submit month end accruals to General Ledger.  Uses technical and operational skill to optimize performance and ensure timely completion of Accounts Payable activities.

4. Prepares financial reports and distributes as needed.  Submits Independent Contractor reports to Employment Development Department (EDD) and CA Form 592 to the Franchise Tax Board. 

5. Performs other duties as assigned to support the efficient operation of the department.


  • High School diploma or GED is required.
  • Associates degree in Accounting is preferred.
  • Minimum of three (3) years of experience in a high volume Accounts Payable department.
  • Must possess intermediate proficiency in Microsoft Office Suite (i.e. Word, Excel, and Outlook) and advanced 10-key.
  • Experience with Enterprise Resource Planning (ERP) systems; Lawson or similar financial software is preferred.
  • Must have demonstrated ability exercising utmost discretion with confidential information including, but not limited to: credit card information and personal or financial data from customers and vendors.


  • At the discretion of the San Manuel Tribal Gaming Commission, you may be required to obtain and maintain a gaming license.
  • An Accounting Certificate is preferred.

San Manuel Band of Mission Indians and San Manuel Casino will make reasonable accommodations in compliance with applicable law.

As one of the largest private employers in the Inland Empire, San Manuel deeply cares about the future, growth and well-being of its employees. Join our team today!

Posted April 5, 2024

San Manuel Band of Mission Indians

The San Manuel Band of Mission Indians is a federally-recognized Indian tribe located on the San Manuel Indian Reservation near Highland, California.  San Manuel exercises its inherent sovereign right of self-governance and provides essential services for its citizens by building infrastructure, maintaining civil services, and promoting social, economic, and cultural development.  

 The Serrano people of San Manuel have called this area home since time immemorial and are committed to remaining a productive partner in the San Bernardino region. The Reservation, once only 640 acres, is now over 1,100 acres in size. 

The call of Yawa’ – to act upon one’s beliefs – inspires the Tribe to give back to the areas they call home and support organizations working to create a better tomorrow in the Inland Empire and Indian Country. 

Our support is directed to organizations providing services in San Bernardino and Riverside counties, including:

  •         501(c)(3) nonprofit organizations
  •         Public schools
  •         Private schools
  •         Charter schools, and 
  •         Local government agencies

The Tribe also operates Yaamava' Resort & Casino at San Manuel (formerly known as San Manuel Casino®), the Palms Casino Resort, as well as other enterprises. 

We value our employees and offer a comprehensive Benefits Program

Our team members enjoy a competitive base salary, an annual discretionary performance bonus, and an annual merit increase as part of our total rewards package. Additionally, San Manuel supports team members' financial health through 401(k) retirement savings plans that offer a 2% core discretionary contribution and matching, and a host of other services - from discounts to tuition assistance.

Apply today to join our team!