Accounts Payable Specialist
Castlerock Resources • Houston, Texas • Full Time
Posted on Wed, Aug 5, 2026
Essential Duties and Responsibilities:
- Process a high volume of vendor and subcontractor invoices; verify approvals, pricing, quantities, and supporting documentation
- Match invoices to purchase orders, work orders, and subcontract agreements; resolve discrepancies with project managers and vendors
- Code invoices to the correct job, cost code, and GL account to keep job costing accurate
- Prepare weekly check runs, positive pay and ACH payment batches for approval
- Collect and track lien waivers, W-9s, and certificates of insurance before releasing subcontractor payments
- Reconcile vendor statements; research and resolve past-due balances, short pays, and billing disputes
- Enter and/or reconcile company credit card and fuel card transactions; process employee expense reports
- Maintain organized vendor files and AP documentation to support audits and federally funded / disaster recovery project compliance
- Set up new vendors and keep vendor records current
- Support month-end close with AP accruals, aging reports, and reconciliations
- Assist with year-end 1099 preparation
- Assist with other AP-related projects and duties as needed
- Prepare various reports and perform analysis on job costs, budgets, and various transactions
- 2–4 years of accounts payable experience; construction, disaster recovery, or field operations environment preferred
- Working knowledge of accounting principles and QuickBooks; construction accounting software a plus
- Familiarity with job cost coding, lien waivers, and subcontractor compliance documentation
- Solid Excel skills
- Attention to Detail — accurate and thorough in a high-volume, deadline-driven environment
- Strong organizational and time management skills
- Clear, professional communication with vendors, subcontractors, and field teams
- Integrity — honest and ethical in handling company funds and vendor relationships
- Dependability — reliable, responsible, and follows through on obligations
- Initiative — owns tasks start to finish and flags issues before they become problems
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