Senior Accounts Payable Specialist (Casual)

Job Description

A Senior Accounts Payable Specialist is responsible for overseeing and managing an organization's accounts payable processes, ensuring that vendor invoices are accurately reviewed, approved, processed, and paid in a timely manner. The role typically serves as a subject matter expert within the accounts payable function, handling complex transactions, resolving payment discrepancies, maintaining vendor relationships, and ensuring compliance with company policies and accounting standards. Senior Accounts Payable may also assist with month-end closing activities, audit support and process improvements. Must have a strong attention to detail, analytical skills, knowledge of accounting systems, and the ability to manage multiple priorities are essential for success in this role. Position will report to the Chief Financial Officer.

Responsibilities

• Review invoices for accuracy, proper coding, and authorization
• Ensure invoices are matched with purchase orders and receipts (3-way matching)
• Process high-value or complex invoices and check requests that junior staff escalate
• Prepare and review weekly payment runs (checks, ACH, wire transfers)
• Verify payment schedules align with vendor terms and cash flow needs
• Handle urgent or exception payments (e.g., same-day wires)
• Investigate and correct posting errors or duplicate payments
• Resolve disputes related to billing, pricing, or missing documentation
• Coordinate with procurement, receiving, and finance teams
• Ensure all invoices for the period are recorded
• Process weekly Sponsorship and Grants payments, Track all payments to program spreadsheets for accuracy.
• Monitor and manage the AP inbox for urgent or sensitive items

Qualifications

• Five (5) years of experience in financial analyses, general ledger accounting and preparation of financial statements.
• Five (5) years of experience working with automated accounting systems.

Job Info

• Job Identification 471
• Locations 801 Allen Y. Lew Place NW, Washington, DC, 20001, US