Global Accounts Payable Specialist – Defense

Amentum; Port Stephens; Hybrid; AUD 65,000 - 90,000; Full time

Job summary

Amentum is seeking a Finance Officer to manage accounts payable activities at the RAAF Williamtown base in NSW. This role supports the ACSPO and related civilian stakeholders, ensuring timely processing of international supplier invoices in a constrained, high‑volume environment.

You will verify funds availability, prepare journal entries for month-end, and maintain robust financial records to support audits and reporting.

Qualifications

• Experience in accounts payable and invoice processing.
• Strong attention to detail and accuracy.
• Ability to liaise with internal and external stakeholders.
• Experience with ERP financial systems.

Responsibilities

• Process high volumes of international supplier invoices.
• Verify funds availability prior to payments.
• Post journal entries for month-end adjustments.
• Maintain accurate financial records for audits.
• Resolve invoice discrepancies and support process improvements.
• Respond to accounts payable inquiries promptly.
• Ensure compliance with financial policies and controls.
• Support continuous improvement of transactional processes.
• Collaborate with team to manage workload.
• Provide timely updates to project stakeholders.

Skills

Accounts payable

Invoice processing

Data integrity

Stakeholder engagement

Financial controls

Tools

ERP systems

Job description

Amentum is seeking a Finance Officer to manage accounts payable activities at the RAAF Williamtown base in NSW. This role supports the ACSPO and related civilian stakeholders, ensuring timely processing of international supplier invoices in a constrained, high‑volume environment.

You will verify funds availability, prepare journal entries for month-end, and maintain robust financial records to support audits and reporting.