Amentum is continually expanding our opportunities working on prominent defence projects across air, land and sea supporting the critical capabilities that keep Australia safe. We have a growing presence in cyber, space and nuclear programs.

Our Team:

The Air Combat Systems Program Office (ACSPO) manages the acquisition and sustainment of Australia’s F‑35A Lightning II capability. It provides Asset, Project, Financial, Engineering, and Business Management Support for F‑35 sustainment and associated AIR06000 project phases.

About the Role:

As a key member of the Finance team, you will play an important role in ensuring the accuracy, compliance, and efficiency of the Accounts Payable function. Working under limited direction, you’ll be responsible for processing high‑volume international invoices, maintaining financial data integrity, and acting as a primary point of contact for accounts payable enquiries.
This role suits someone who enjoys structured financial processes, detailed transactional work, and adding value by translating data into meaningful insights that support informed business decisions.

What’s Involved:

- Processing high volumes of international supplier invoices with accuracy and correct coding
- Verifying data sources and escalating discrepancies where required
- Supporting cash flow accuracy through timely invoice processing and payment controls
- Maintaining compliance and audit‑ready financial documentation
- Collaborating with internal teams and suppliers to resolve invoice issues and improve processes
- Responding professionally to internal and external Accounts Payable queries
- Supporting internal controls through early identification of risks, trends, or anomalies in financial data

Who we’re Looking For:





You take pride in precision, accuracy, and maintaining the financial integrity of business operations. You enjoy working with large data sets, identifying issues before they become problems, and contributing to a smooth end‑to‑end Accounts Payable process.
You’re comfortable working both independently and as part of an integrated team, with the confidence to engage stakeholders at all levels. You can clearly explain financial information, provide practical insights, and help others understand what the numbers mean.

You’ll Need:

- Understanding of data, with the ability to interpret results and translate numbers into insights for stakeholders
- Intermediate Excel capability, (Eg - pivot tables, VLOOKUP/XLOOKUP, SUMIFS, IF statements, and data cleansing/manipulation)
- Ability to analyse large datasets, identify trends or anomalies, and maintain data integrity
- Basic compliance and audit awareness
- High attention to detail with strong data‑entry accuracy
- Ability to manage high‑volume workloads accurately and meet deadlines
- Confident communication skills with the ability to engage internal and external stakeholders
- A process‑driven, organised approach with a commitment to continuous improvement

Essential:

- Intermediate Excel Skills

Desirable:

- Experience in Accounts Payable or Transactional Finance,



including end-to-end invoice processing, approvals, and payments.
- Bachelor’s degree in finance, Accounting, or Commerce, or other relevant financial qualifications
- Exposure to ERP systems and reporting tools such as SAP and Power BI
- Baseline Security Clearance

Required Security Clearance Level: Minimum Baseline with ability to obtain and maintain NV1
Office Location: RAAF Base Williamtown – Near Newcastle Airport
Weekly Hours: 40 Hours

What’s in it for me?

- Flexibility - We like our employees to have the flexibility they need to live the lives they choose. With versatile working options such as WFH where possible.
- Inclusion - Our employees should feel safe bringing their whole self to work, we offer a number of programs promoting inclusion.
- Benefits and Rewards – Our perks and rewards includes additional superannuation; versatile leave options; salary continuation insurance; professional certification bonus; employee discount program.

Amentum: Trusted Partner in National Security

Amentum is a key service provider to the Australian Government, supporting critical national security and Defence capabilities across land, air, maritime, cyber, space, nuclear, and digital domains. With over 880 professionals nationwide, we deliver complex infrastructure, logistics, and technical solutions with a strong focus on quality, safety, and innovation.

With 27+ years of experience and a presence in major cities and regions, we’re proud of our people—our greatest asset. Join us and be part of a high-performing team with exceptional benefits and career opportunities. Apply directly or reach out to Kiran Koranga, [email protected].

📌 Finance Officer - Air Combat Systems Program Office (Newcastle)
🏢 Kinexus
📍 Newcastle