Account Clerk I, II - Purchasing (AA-197-26E) WHITTIER

Account Clerk I, II

At the Los Angeles County Sanitation Districts, we're committed to protecting public health and the environment through innovative wastewater and solid waste management solutions. Our missionConverting Waste into Resourcesdrives everything we do, from renewable energy to recycling programs to infrastructure that serves over 5 million people across Los Angeles County.

The Accounts Payable team supports the Districts' operations by ensuring invoices and other payment requests are reviewed, processed, and recorded accurately and on time. The team works closely with vendors and departments throughout the Districts to support payment processing, maintain accurate records, and address routine accounts payable needs. Because Accounts Payable works with teams across the organization, team members gain broad exposure to the Districts' financial processes and day-to-day operations.

This position is eligible for Telework and/or the 9/80 work schedule upon successful completion of probationary period, in accordance with Districts' policy.

To perform routine and difficult accounting clerical work involved in preparing, maintaining and processing financial and statistical records; and to prepare, process or audit purchase orders, invoices and warrants.

Under the general supervision of the Supervisor of Accounts Payable, the incumbent will:

• Process invoices for payment to ensure accurate and timely vendor payments by reviewing invoices for arithmetic and accounting accuracy, verifying accounting charges and required supporting documentation, performing three-way matching, identifying and correcting invoice irregularities, and posting invoice-related entries through accounts payable systems and procedures.
• Monitor open and pending invoices to meet payment deadlines and prevent processing delays by reviewing invoice status and following up with field and departmental staff to obtain required receivers, approvals, and status updates.
• Reconcile vendor accounts and purchase order balances to maintain accurate financial records and identify unresolved obligations by comparing vendor statements to Districts records, researching outstanding balances and unpaid receipts, and coordinating resolution of outstanding items needed to close purchase orders.
• Resolve invoice, payment, and account inquiries to support accurate processing and responsive customer service by researching financial records and coordinating with vendors, Purchasing staff, other agencies, and departmental personnel to address discrepancies and complete transactions.
• Maintain financial and statistical records to support accurate accounts payable processing and recordkeeping by assembling, tabulating, checking, calculating, posting, and filing numerical data and related financial records using financial systems, spreadsheets, and standard office equipment.

This job may be filled at either level.

Account Clerk I: This is the entry-level class of the series. Incumbents perform the less complex financial recordkeeping duties.

Account Clerk II: This is the journey level class of the series. Incumbents perform accounting clerical duties related to the preparation and maintenance of moderately complex financial and statistical records.

Applicants must possess all of the following:

• For Account Clerk I: One (1) year of clerical experience involving financial responsibility for preparing or updating numerical data or records.
• For Account Clerk II: One (1) year of experience in the County Sanitation Districts of Los Angeles County performing the duties of an Account Clerk I; OR Two (2) years of increasingly responsible experience in numerical or financial recordkeeping.

Desirable qualifications:

• Experience performing high-volume accounts payable processing, three-way matching, vendor payments and resolution of invoice discrepancies
• Experience with procure-to-pay processes, including purchase orders, receivers, three-way matching, invoice approvals, and resolving payment discrepancies
• Experience reconciling vendor statements and researching outstanding balances, unpaid receipts, or other account discrepancies
• Experience using Oracle WAM and Oracle EBS software, or comparable enterprise financial/ERP systems
• Experience using Microsoft Excel and other computer applications to maintain, review, and reconcile financial records and data
• Experience performing high-volume numeric data entry using a 10-key keypad or similar numeric-entry method

For both levels, the competitive selection process may cover:

• Knowledge of: Accounts payable and procure-to-pay principles and procedures
• Financial recordkeeping and reconciliation practices
• Basic arithmetic and numerical concepts used in financial transactions and recordkeeping
• Computer applications and financial systems used to process, maintain, and review financial information

• Ability to: Accurately review, process, and maintain invoices and financial records
• Perform accurate arithmetic calculations and compare numerical or financial information
• Research, reconcile, and resolve invoice, vendor account, and financial-record discrepancies
• Learn, interpret, and apply accounts payable and financial recordkeeping procedures, policies, and system requirements
• Use computers, financial systems, spreadsheets, and numeric-entry tools
• Organize, prioritize, and complete a high volume of detailed financial transactions
• Communicate clearly and professionally and maintain effective working relationships

All applications will be reviewed to determine if the conditions and qualifications for testing are met. The selection process consists of a written test weighted at 30% and an interview weighted at 70% and will be the same for all qualified applicants. Candidates must receive a qualifying score on each selection component to move forward in the selection process. The written test is tentatively scheduled for Thursday, September 24, 2026. The interviews are tentatively scheduled for the week of September 28, 2026.

To apply: Please apply online at within the application period. Resumes will not be accepted in lieu of a completed LACSD Employment application. Check your e-mail regularly throughout the recruitment process as notifications are sent via e-mail. Please make sure that your registered e-mail address is accurate and current. To ensure proper delivery add View email address on click.appcast.io to your contact list. The individual(s) recommended for hire must undergo a reference check, background check, DMV report, pre-employment physical and drug test.

As an equal opportunity employer, the Districts strongly encourage people with disabilities and people from historically marginalized communities to apply.