Administrator, Accounts Payable

Trinity Industries is seeking an Administrator, Accounts Payable for our Dallas, TX Headquarters.  This position supports end-to-end AP operations in a high-volume, controls-driven environment. Responsible for daily 2-way and 3-way invoice matching, open payables monitoring, and partnering with Plant Operations and Procurement to resolve receiving issues, PO discrepancies, and billing variances. This role also ensures vendor master data integrity through supplier setup, tax and banking validation, and SOX-compliant documentation. The Administrator collaborates across Business Units to streamline workflows, supports vendor account reconciliations and bank reconciliation activities, and hosts vendor meetings as needed. The ideal candidate brings strong analytical skills, meticulous attention to detail, and a service-oriented mindset.

Join our team today and be a part of Delivering Goods for the Good of All!

What You'll Do:

Accounts Payable Processing

• Invoice Processing – Match 2-way and 3-way invoices within established cycle times. Resolve receiving discrepancies, PO mismatches, and pricing variances with internal stakeholders. Conduct vendor statement reconciliations to clear balances and prevent aging.
• Discount Monitoring & Recovery – Monitor discount-term invoices to identify missed or at-risk discounts. Expedite approvals when windows are closing. Analyze variances to determine root cause and whether repayment is warranted.
• Invoice Holds & Exceptions – Investigate and clear holds or equivalent exception codes) by resolving data mismatches, missing documentation, or policy exceptions. Document root cause, corrective actions, and resolution timelines.

Vendor Master Administration

• Supplier Setup & Maintenance – Process new vendor setups, changes, and deactivations with complete documentation. Validate TIN/W-9/W-8, remit-to details, payment methods, banking data, tax codes, and 1099 indicators.
• Supplier Updates – Execute address, remit-to, contact, tax, and payment term changes with audit-ready documentation and data governance adherence. Ensure all changes are authorized and traceable.

• Returned ACH Resolution – Investigate ACH returns, coordinate supplier outreach, complete bank revalidation, and update payment data to prevent recurrence.

  
   

SOX Controls & Compliance

• Control Evidence – Maintain evidence in the designated repository using standardized naming and indexing. Keep documentation complete, current, and audit ready.
• Approval Workflows – Ensure vendor setups, master data changes, and payment releases follow established workflows and the authorization matrix. Escalate deviations promptly.

• Supplier Documentation – Validate W-9/W-8 forms, tax data, and bank verification to maintain accuracy, compliance, and data integrity.

   

Stakeholder Collaboration & Vendor Relations

• Cross-Functional Partnership – Partner with Plant Operations, Procurement, Treasury, and Business Units to streamline workflows, resolve escalations, and improve end-to-end efficiency.
• Vendor Meeting Facilitation – Host vendor review meetings for reconciliation, dispute resolution, or relationship management. Prepare documentation and follow up on action items.

Bank Reconciliation Support

• Reconciliation Artifacts – Supply payment confirmations, remittance details, void/reissue documentation, and approver signoffs to Treasury within established deadlines.
• Outstanding Check Research – Research and resolve outstanding checks, stale-dated items, and unclaimed property inquiries. Coordinate disposition including void/reissue or escheatment.
• Reconciliation Timeliness – Clear all AP-related reconciliation items within the monthly close cycle. Escalate aged items to the AP Manager with root-cause analysis and corrective recommendations.

Key Decision Rights

• Review and release payments per the approval matrix and payment-file transmission controls
• Approve or escalate vendor master data changes based on documentation completeness and policy compliance
• Investigate and resolve invoice holds and exceptions, document root cause and corrective actions
• Flag and escalate control gaps, unauthorized changes, or compliance risks to the AP Manager