Accounts Payable Officer

Founded in Australia in 2019, our mission is to create the most efficient AI infrastructure by combining cutting-edge technology with a steadfast commitment to sustainability.

At Firmus, we are unique in our approach. We design, build, and operate a new class of digital infrastructure – the AI Factory. Through our model-to-grid technology approach, we have pushed the boundaries of multi-generational liquid cooling systems, energy management, AI software orchestration, and construction. Fo...

Our large-scale GPU cloud platform, Firmus AI Cloud, is purpose-built to deliver energy-efficient AI compute at scale to customers.

End-to-end Accounts Payable processing in a high-volume environment
Processing large volumes of supplier invoices across multiple entities and projects
Reviewing and validating purchase orders, approvals, coding, and invoice matching to ensure accuracy
Processing high-value capital expenditure (CapEx) and asset-related invoices for construction projects
Ensuring accurate allocation of costs across projects, assets, and cost centres
Managing supplier prepayments and ensuring correct allocation against invoices
Handling multi-currency invoices and payments
Reviewing and processing employee expense claims to ensure accuracy and compliance
Investigating invoice discrepancies and resolving AP issues with suppliers, procurement, and project teams
Working within complex approval workflows and ensuring coding accuracy
Assisting with month-end AP close activities, accruals, and reconciliation support
Ensuring compliance with internal controls, company policies, and audit requirements
Invoices and expenses are processed accurately and within agreed timelines, with minimal backlog.
Purchase order matching, coding and cost allocations are consistently accurate across entities, projects, assets and cost centres.
CapEx and asset-related expenditure is processed correctly, supporting reliable project and financial reporting.
Supplier and stakeholder queries are resolved promptly, with minimal aged exceptions and rework.
Month-end AP activities, reconciliations and accrual support are completed accurately and on schedule.
AP processes remain audit-ready, with opportunities to improve efficiency, controls and automation proactively identified.

Strong attention to detail and ability to manage competing deadlines in a fast-paced environment
Ability to work collaboratively with procurement, project managers, and finance stakeholders
Strong communication skills
Problem solving skills, and a continuous improvement mindset
Proven experience in high-volume invoice processing environments
Experience processing CapEx or asset-related invoices
Experience supporting construction, infrastructure, engineering, or data centre projects highly regarded
Multi-entity and multi-currency environment experience
Intercompany transaction experience
Strong understanding of purchase orders, invoice matching, and approval workflows
Understanding of how AP transactions impact the General Ledger
Understanding of posting periods, accruals, and month-end controls