Project-Based Accounts Payable Specialist – Oil & Gas

System One; Houston (TX); On-site; USD 52,000 - 78,000; Full time

Job summary

System One in Houston, TX is seeking an Accounts Payable Specialist to join a growing accounting team supporting oil & gas, energy, construction, and industrial services operations.

The ideal candidate has 2–5+ years of AP experience, proficiency in three‑way matching, POs, and vendor management, and a strong eye for detail. Experience with ERP systems and multi‑entity environments is a plus.

Qualifications

• 2–5+ years of Accounts Payable experience.
• Experience with three‑way matching and invoice coding.
• POs and vendor management experience.
• Construction or field‑service invoicing experience is a plus.
• Job/project costing exposure is beneficial.
• Ability to work in multi‑entity environments.

Responsibilities

• Process a high volume of vendor invoices accurately and efficiently.
• Review invoices for proper coding, approvals, POs, and supporting documents.
• Perform three‑way matching of POs, receipts, and invoices.
• Code invoices to GL accounts, cost centers, projects, and jobs.
• Enter invoices into the ERP system and ensure timely processing.
• Prepare and process weekly payments (check runs, ACH, wires).
• Maintain vendor records and assist with onboarding.
• Reconcile vendor statements and resolve discrepancies.
• Assist with month‑end close activities and AP accruals.
• Monitor AP aging and identify past‑due items.

Skills

Accounts Payable experience

Attention to detail

Excel skills

Communication skills

Independent and collaborative

Multitasking / time management

Education

High school diploma

Associate's or Bachelor's in Accounting/Finance

Tools

SAP

Oracle

NetSuite

Microsoft Dynamics

Sage Intacct

Job description

System One in Houston, TX is seeking an Accounts Payable Specialist to join a growing accounting team supporting oil & gas, energy, construction, and industrial services operations.

The ideal candidate has 2–5+ years of AP experience, proficiency in three‑way matching, POs, and vendor management, and a strong eye for detail. Experience with ERP systems and multi‑entity environments is a plus.