Administrative Assistant, Accounts Payable

Job overview

The Administrative Assistant, Accounts Payable role is onsite in Houston, TX. The listing provides a $42,000–$50,000 annual salary range. Xammax is described as a growing construction company with steady project work and a small team. The role manages accounts payable and general office administration to keep vendor payments, job-cost records, and project documentation organized. By coordinating with vendors, subcontractors, project managers, and field crews, the assistant supports accurate financial records and smooth construction-office operations.

What you'll do

• Manage the accounts payable cycle by receiving, coding, and entering vendor and subcontractor invoices by job and cost code
• match invoices to purchase orders, subcontracts, and delivery tickets and obtain approvals
• prepare weekly check runs and payment batches for approval
• track lien waivers
• maintain vendor files, including W-9s, insurance certificates, and subcontract agreements
• reconcile vendor statements
• support job-cost reporting and month-end close
• handle phones, correspondence, filing, supplies, and scheduling
• assist with project documentation, permits, and office-field coordination
• help prepare 1099s at year-end.

What we're looking for

Skills & competencies

administrative assistant

accounts payable

construction administration

invoice processing

job costing

lien waivers

vendor reconciliation

houston tx

xammax

$42k–$50k annual

jonas construction software

quickbooks

microsoft excel

full-time

Work arrangement

• Weekend coverage required

Benefits & perks

• Stable, growing company with steady project work and a small team where work is visible and valued.

Why this role

Construction accounts payable focus; Jonas Construction Software strongly preferred; QuickBooks experience is a plus; relevant construction office experience may outweigh formal education.

About the employer

Xammax is hiring for this role. Industry: Commercial and Institutional Building Construction. Sector: 23.