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. 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 organisation’s accounts payable function. Working under limited direction, you will be responsible for processing a high volume of international invoices, maintaining financial data integrity, and acting as a primary point of contact for accounts payable enquiries. This role is ideal for someone who enjoys structured processes, detailed financial work, and supporting internal and external stakeholders through reliable, high‑quality service delivery. What’s Involved: Processing international supplier invoices with accuracy and correct coding Verify funds availability and escalate discrepancies Prepare and post journal entries for month‑end and adjustments Maintain compliance, audit‑ready financial documentation Collaborate to resolve invoice issues and improve processes Respond to internal and external AP queries professionally Support the integrity of internal controls through early identification of potential setbacks Who we’re Looking For: You’re someone who takes pride in precision, consistency, and maintains the financial integrity of business operations. You enjoy working with data, solving process‑related issues, and supporting a smooth end‑to‑end accounts payable workflow. You are comfortable working both independently and as part of an integrated team, with the confidence to liaise with stakeholders at all levels and provide advice on finance processes when required. You’ll Need: Experience in Accounts Payable or Transactional Finance High attention to detail and strong data‑entry skills Ability to manage volume work accurately and on time Confident communicator with strong stakeholder skills Able to work independently within an integrated team Process‑driven, organised, and committed to continuous improvement Australian citizenship, NV1 clearance, ITAR Compliance What’s in it for me? Flexibility - We like our employees to have the flexibility they need to live the lives they choose. With flexible 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 benefits and rewards includes additional superannuation; flexible 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 Jeremy Parkinson, jeremy.parkinson@global.amentum.com .
