Job Description

Administration Assistant - Revesby office n

About us
n OneStop Fire is a specialist passive fire protection contractor delivering fire-stopping, penetration sealing and compartmentation works across Sydney. We're a proud member of Master Builders Association NSW, FPA Australia and Strata Community Association (NSW), and we run an integrated management system aligned to ISO 9001, 14001 and 45001.

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We're a close-knit team of 12, and we're looking for an organised, detail-driven Administration Assistant to join our Revesby office.

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About the role
n Reporting to the Business Manager, you'll be at the centre of the office. You'll keep our job records, compliance documents and day-to-day operations running smoothly so our field teams can focus on delivering quality work. No two days are the same, and you'll get broad exposure to how a construction business operates.

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What you'll be doing

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Answering calls, managing the office inbox and greeting visitors

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Setting up job file, creating job site folders and uploading site records, photos and completion documentation

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Helping prepare quotes, variations and handover packs

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Entering supplier invoices, collating timesheets and supporting debtor follow-up

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Maintaining registers for staff licences, subcontractor insurances and vehicles

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Supporting our ISO management system and audit preparation

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Assisting with onboarding, training bookings and employee records

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Providing general support to the Business Manager

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What you'll bring

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1–2 years' experience in an office administration role

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Strong Microsoft Office skills, particularly Outlook, Word and Excel

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Excellent communication and a professional, friendly manner

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A sharp eye for detail and accuracy as well as the drive to take "initiative"

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The ability to juggle priorities and work independently

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Construction or trade industry experience, Xero or MYOB, or ISO/WHS exposure (highly regarded but not essential)

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What's in it for you

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Annual Salary + super, depending on experience

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Full time, permanent position, Monday to Friday.

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Free onsite parking

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A small team where your work is noticed and valued

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The chance to grow your skills in a specialist, compliance-focused industry

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Applicants must have full working rights in Australia.

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📌 Administration Assistant - Revesby office (Sydney)
🏢 OneStop Fire
📍 Sydney