Senior Accounts Payable Specialist: End-to-End Invoicing

RTD - Regional Transportation District of Denver, CO (RTD); United States; On-site; USD 50,000 - 71,000; Full time

Job summary

RTD is seeking an experienced AP professional to manage end-to-end vendor invoice processing, ensuring compliance with tax coding, 1099 classifications, and timely documentation. You will reconcile vendor statements, manage aging reports, and support month-end/year-end close through accurate journal entries and GL tie-ins.

The role requires strong Excel skills, experience with an AP system, and the ability to work with internal departments to resolve discrepancies while maintaining strict

Qualifications

• Associates degree in Accounting, Business or similar discipline.
• Five or more years in a finance/accounting role with analytical responsibilities.
• Five or more years of experience with a computerized Accounts Payable system.

Responsibilities

• Manages end-to-end accounts payable processing, including reviewing, verifying, and reconciling vendor invoices, statements, purchase orders, receipts, expense reports, and supporting documentation for accuracy and compliance.
• Ensures adherence to agency disbursement policies by identifying non-compliant items, escalating issues, and communicating with vendors and internal staff to resolve discrepancies, problem accounts, and payment questions.
• Maintains vendor accounts and documentation, including identifying credits or overpayments, managing aging reports, monitoring past-due items, and ensuring invoices follow proper approval routing and workflow.
• Enters and validates data in the accounts payable system and online AP platform, creating payment vouchers, updating interactive systems, and verifying the accuracy of computer-generated checks and disbursements.
• Processes employee reimbursements and purchasing card transactions, ensuring proper receipts, coding, approvals, tax treatment, and compliance with travel and expense policies.
• Coordinates and tracks disbursements, including checks, wires, ACH payments, and items requiring special handling; maintains document control logs and vendor portfolios.
• Supports financial close activities (month-end and year-end), including journal entries, 1099 review, audit requests, and purchasing/inventory reconciliations tied to GL and subledgers.
• Participates in accounts payable system testing, implementation, and training, including ERP transition efforts; assists in maintaining and improving AP systems and processes.
• Conducts research on outstanding or uncashed checks and prepares required unclaimed property reporting for the Colorado State Treasury’s Great Colorado Payback program (C.R.S. 38-13).

Skills

Accounts payable processing

Vendor invoices

Excel

ERP systems

GAAP knowledge

Education

Associates degree in Accounting or related

Tools

Accounts Payable system

General Ledger

Job description

RTD is seeking an experienced AP professional to manage end-to-end vendor invoice processing, ensuring compliance with tax coding, 1099 classifications, and timely documentation. You will reconcile vendor statements, manage aging reports, and support month-end/year-end close through accurate journal entries and GL tie-ins.

The role requires strong Excel skills, experience with an AP system, and the ability to work with internal departments to resolve discrepancies while maintaining strict