About ThreatDefence

ThreatDefence is a growing Australian cybersecurity company providing security technology, 24×7 managed security operations, and incident response services to organizations across Australia and internationally.

We are looking for a reliable and organized Accounts and Office Administrator to support our day-to-day accounts, office operations, travel, and company events.

About the Role

This is a hands-on role combining bookkeeping, accounts administration, and general office management.

We work with an external accounting firm that manages payroll, tax, BAS, and higher-level compliance. This role will take ownership of the day-to-day internal accounts workflow and general administration.

Key Responsibilities

Accounts Administration

- Process invoices and prepare payments for approval.

- Manage customer invoices and statements.

- Follow up outstanding customer accounts.

- Reconcile statements, bank accounts, and credit cards.

- Keep the accounts inbox organized and ensure requests are actioned.

- Follow up missing invoices, receipts, approvals, and payment information.

- Maintain accurate accounts payable and accounts receivable records.

- Liaise with our external bookkeeping and accounting firm.

- Provide general bookkeeping and accounts administration support.

Office Administration

- Manage the day-to-day operation of the Sydney office.

- Coordinate office supplies, equipment, maintenance, and service providers.

- Liaise with building management, couriers, cleaners, and suppliers.

- Organize domestic and international business travel.

- Coordinate attendance at conferences,



trade shows, partner events, and customer events.

- Manage event registrations, travel, accommodation, materials, and suppliers.

- Support employee onboarding, team activities, meetings, and general administration.

- Assist management with administrative tasks and process improvements.

Essential Requirements

- Previous experience in bookkeeping, accounts administration, or a similar accounting role.

- Strong practical experience using Xero.

- Strong written and spoken communication skills.

- Good knowledge of accounts payable, accounts receivable, invoicing, and reconciliations.

- Strong attention to detail and organizational skills.

- Confident communicating with customers and suppliers by phone and email.

- Able to work independently and take ownership of tasks.

- Confident using Microsoft Excel, Outlook, and other Microsoft 365 applications.

- Reliable, practical, and proactive.

Hours and Location

- Permanent part-time position.

- Approximately two days per week.

- Adaptable working days for the right person.

- Sydney-based role.

Why Join ThreatDefence?

This is a practical role where you can make a visible difference by improving the structure and consistency of our accounts and office administration.

You will work closely with the management team in a growing Australian technology business and have the opportunity to take ownership of the role.

To Apply

Please submit your resume and a short note outlining your bookkeeping and accounts experience, your experience with Xero, preferred working days, and availability to start.

📌 Part-Time Accounts and Office Administrator (Sydney)
🏢 Threatdefence
📍 Sydney