CSA - Billing Officer Dandenong South

We’re looking for a highly organised and detail-focused Billings Officer to join the CSA & Argus team. This is a hands-on role where you’ll be responsible for processing high-volume billing, reconciling data, and working closely with operations, sales, clients, and field teams.You’ll be working with a wide range of stakeholders and playing an important role in ensuring large client accounts are billed accurately.

No formal finance qualification is required — we’re looking for someone who enjoys hands-on billing and wants to be part of a busy, collaborative team. If you’re confident with Excel, comfortable working across multiple systems and aren’t afraid to pick up the phone and chase answers, this could be a great fit.

What you’ll be doing

• Review job and truck timing data to ensure hours, quantities and charges are billed correctly.
• Verify completed jobs, waste quantities and service types before invoicing clients.
• Review automated billing through Connexion and manually check for errors or discrepancies.
• Manage client-specific billing requirements, rates and exceptions.
• Upload and maintain billing information across multiple client portals.
• Cross-check client approvals, Excel data and invoices to ensure everything matches.
• Work closely with Operations, Sales and Account Managers to resolve billing queries.
• Speak directly with operators, drivers and field staff to clarify job details.
• Process client payments over the phone and via internet banking where required.
• Maintain and reconcile high-volume Excel spreadsheets and reporting data.
• Use PowerBI reports and Excel to support reconciliation and reporting.
• Manage a high volume of queries while working across multiple systems and screens.
• Support the shared team inbox and allocated client accounts.
• Provide cover and support to the Senior Billings Officer and Finance Team Leader when required.

What we’re looking for

• Previous experience in billing, invoicing, accounts or similar high-volume finance administration.
• Strong Excel skills - pivot table experience is highly regarded.
• Exceptional attention to detail. Accuracy is essential in this role.
• Comfortable learning and switching between multiple systems, portals and screens.
• Confident communicator who is comfortable picking up the phone and speaking with clients, operations and field staff.
• Proactive approach - you ask questions, investigate discrepancies and raise issues early.
• Strong organisational skills and the ability to manage competing priorities under pressure.
• Resilient and comfortable working in a fast-paced construction and waste industry environment.