About us

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.

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

About the role

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.

What you'll be doing

- Answering calls, managing the office inbox and greeting visitors

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

- Helping prepare quotes, variations and handover packs

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

- Maintaining registers for staff licences, subcontractor insurances and vehicles





- Supporting our ISO management system and audit preparation

- Assisting with onboarding, training bookings and employee records

- Providing general support to the Business Manager

What you'll bring

- 1–2 years' experience in an office administration role

- Strong Microsoft Office skills, particularly Outlook, Word and Excel

- Excellent communication and a professional, friendly manner
- A sharp eye for detail and accuracy as well as the drive to take "initiative"

- The ability to juggle priorities and work independently

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

What's in it for you

- Annual Salary + super, depending on experience

- Full time, permanent position, Monday to Friday.

- Free onsite parking
- A small team where your work is noticed and valued
- The chance to grow your skills in a specialist, compliance-focused industry

Ready to apply?

Click Apply and send your resume along with a short cover letter telling us why you'd be a great fit. Only shortlisted candidates will be contacted.

Applicants must have full working rights in Australia.

📌 Administration Assistant - Revesby office
🏢 OneStop Fire
📍 Revesby