Be part of something big — where getting it right matters.
At Certis Security Australia, we deliver innovative, integrated security solutions that create safer environments — including major events and high-profile sites across Australia.
Our commitment is to a Safer, Smarter and Better workplace, where people are supported, respected and empowered. As Australia’s only next-generation security company operating at scale, we’re transforming how we work through technology, automation and operational excellence.
Behind every safe, successful operation is accurate data and disciplined processes. That’s where you come in.
As a Billing Officer, you’ll play a key role in protecting revenue and supporting cash flow by ensuring invoices are accurate, timely, and compliant.
Your attention to detail helps prevent downstream credit and collections issues, keeps customer confidence high, and ensures financial records are audit‑ready. Getting billing right means everything that follows runs more smoothly — and your role sits right at that foundation.
About the Role
This is a detail‑driven, process‑focused role for someone who enjoys structure, accuracy, and working with systems.
Reporting to the Billing Team Leader, you’ll prepare and issue invoices, resolve billing queries, and work closely with Operations, Credit, and Collections teams to ensure billing reflects contracts, pricing, and service delivery. Budget for this role is $75,000 plus super.
What You’ll Be Doing
Billing Operations
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Prepare and issue invoices in line with billing schedules, contracts, and pricing agreements
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Validate billing data to ensure accuracy and completeness before release
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Apply approved adjustments, credits, and rebills within delegations and controls
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Complete billing within agreed timeframes and billing cycles
Billing Queries & Issue Resolution
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Respond to customer billing enquiries professionally and within service standards
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Investigate discrepancies and work with internal teams to resolve issues
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Escalate complex, high‑risk, or non‑standard billing matters when required
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Support timely resolution to prevent downstream credit or collections impacts
Compliance, Controls & Documentation
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Follow internal controls, approval pathways, and audit requirements
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Maintain accurate, complete, and audit‑ready system notes and documentation
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Use approved processes, templates, and communication standards
Systems & Reporting
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Use billing and finance systems accurately and consistently
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Maintain up‑to‑date billing records and supporting data
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Support reporting, audits, and reviews as required
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Identify recurring issues or improvement opportunities
Team & Stakeholder Engagement
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Work closely with the Billing Team Leader and broader Finance team
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Liaise with Operations, Credit, and Collections teams to resolve billing issues
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Contribute to a professional, reliable, and cooperative team environment
About You
You’re organised, detail‑oriented, and confident working with numbers — someone who takes pride in accuracy and consistency.
You’ll bring:
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Experience in billing, invoicing, or finance operations
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Strong attention to detail and time management skills
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Experience working with financial or billing systems
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Ability to manage deadlines and competing priorities
Bonus points if you have:
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Microsoft Dynamics 365 experience
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Experience in a contract‑based or high‑volume environment
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Exposure to credit or collections processes
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A certificate or tertiary qualification in Finance, Accounting, or a related discipline
Benefits & Culture
What We Offer:
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Technology-led, intelligent security and facilities management solutions across Australia’s most critical sectors.
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Collaborative, fast-paced work environment with hybrid work arrangements.
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Commitment to diversity and inclusion; applications encouraged from women, Aboriginal and Torres Strait Islander peoples, and candidates from diverse backgrounds.
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Employee benefits such as retail discounts, annual awards, Regular employee engagement survey and a Reward & Recognition Framework
Next Steps:
Once you’ve submitted your application, the next step is to complete a virtual interview with Certis.
This is an important part of our hiring process and must be completed for your application to be considered further.
After you’ve finished your virtual interview, our hiring managers will review all candidates. If you’re successful in progressing to the next stage, we’ll be in touch to let you know what’s next.
Diversity Statement
Within Certis Australia, we believe our strength lies in the diversity of our people. We offer an inclusive culture where you can be your authentic self, contribute your unique perspective and grow with equal opportunities for advancement. Our commitment to a Safer, Smarter and Better workplace ensures every employee is supported, respected and empowered. We actively encourage First Nations and Torres Strait Islander people to apply as we build a brighter future, where all voices matter.
Certis Security Australia Master License
Sydney Night Patrol & Inquiry Co Pty Ltd
- NSW 400674602
- ACT 17501220
- QLD 41315
- WA SA48240
- NT 345
- SA ISL 178143
- TAS 3020
Certis Security Australia Pty Ltd
- NSW 405149073
- ACT 17501742
- QLD 3158254
- WA SA 72311
- SA ISL 235794
- VIC Z05 798 61S
- VIC Z05 798 40S
- NT 1093
- TAS 458596293
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