Southern Premix – Woonona NSW
Administration & Office Support – Full Time

Join a growing concrete business and help build it from the ground up. Southern Premix is seeking an experienced, proactive, and trustworthy Office Administrator to manage the daily office and financial operations of our newly established concrete batch plant on a legacy site.

About the Role

You’ll oversee the full admin function and support the owner directly. This includes:

Payroll, accounts payable and receivable

Invoicing and supplier liaison

Executive assistant duties (scheduling, reporting)

Learning and using batching and sales platforms (DornerBatch, Dorner Sales, MaintainX, Netcorp)

Using AI tools for document generation and admin automation

Creating backend systems: credit apps, terms, WHS plans, procedures

Reporting on operational KPIs

Acting with discretion and independence

What We’re Looking For

Strong admin experience, ideally in construction or heavy industry

Competence in finance tasks (payroll, AR/AP)

Trustworthy, professional, and tech-savvy

Comfortable learning new software and using AI tools

Highly organised, self-motivated and process-driven

Why Work With Us?

Join a business from the ground up and help shape its future

Permanent full-time role in a hands-on, owner-led environment

Competitive salary + onsite parking + modern tools

Location: 15 York Place, Winona NSW
Hours: Monday to Friday