Job Description

Part-Time Accounts and Office Administrator

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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.

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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.

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About the Role

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

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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.

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Key Responsibilities

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Accounts Administration

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- Process invoices and prepare payments for approval.
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- Manage customer invoices and statements.
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- Follow up outstanding customer accounts.
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- Reconcile statements, bank accounts, and credit cards.
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- Keep the accounts inbox organized and ensure requests are actioned.
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- Follow up missing invoices, receipts, approvals, and payment information.
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- Maintain accurate accounts payable and accounts receivable records.
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- Liaise with our external bookkeeping and accounting firm.
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- Provide general bookkeeping and accounts administration support.
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Office Administration

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- Manage the day‐to‐day operation of the Sydney office.
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- Coordinate office supplies, equipment, maintenance, and service providers.
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- Liaise with building management,



couriers, cleaners, and suppliers.
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- Organize domestic and international business travel.
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- Coordinate attendance at conferences, trade shows, partner events, and customer events.
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- Manage event registrations, travel, accommodation, materials, and suppliers.
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- Support employee onboarding, team activities, meetings, and general administration.
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- Assist management with administrative tasks and process improvements.
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- Previous experience in bookkeeping, accounts administration, or a similar accounting role.
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- Strong practical experience using Xero.
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- Strong written and spoken communication skills.
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- Good knowledge of accounts payable, accounts receivable, invoicing, and reconciliations.
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- Strong attention to detail and organizational skills.
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- Confident communicating with customers and suppliers by phone and email.
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- Able to work independently and take ownership of tasks.
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- Confident using Microsoft Excel, Outlook, and other Microsoft 365 applications.
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- Reliable, practical, and proactive.
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Hours and Location

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- Approximately two days per week.
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- Flexible working days for the right person.
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- Sydney-based role.
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Why Join ThreatDefence?

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

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

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📌 Part-Time Accounts and Office Administrator (New South Wales)
🏢 Threatdefence
📍 New South Wales