Wilson Diesel Services is a family-owned business based in Tennant Creek, providing mechanical, field service and hydraulic hose services across the Barkly.

As our business grows, we’re looking for an experienced Office Administrator who can keep the day-to-day work organised while helping across multiple projects. You’ll work directly with the owners and support a busy team working in the workshop, on mine sites and across remote locations.

About the role

This role suits someone who enjoys variety, takes ownership of their work and can keep track of competing priorities. Your responsibilities will include:

- Managing phone calls, emails, customer enquiries and general office administration.

- Booking jobs and keeping job records and supporting paperwork up to date.

- Preparing invoices, following up overdue accounts and assisting with accounts administration.

- Collecting and checking timesheets and supporting payroll preparation.

- Working with our business systems, keeping information accurate and helping improve processes.

- Providing administration support across multiple projects, tracking deadlines, outstanding tasks and documentation.

- Assisting with staff onboarding, inductions, training records and site requirements.

- Coordinating bookings, travel, accommodation and supplies as required.





- Following up with customers, suppliers and staff to keep work moving.

About you

We’re looking for someone who:

- Has solid experience in administration and is confident running a busy office.

- Is comfortable learning and working across different software and business systems.

- Can support several projects at once without losing track of the details.

- Takes initiative, follows through and knows when to ask for direction.

- Communicates clearly with customers, suppliers and the team.

- Handles confidential information with discretion.

- Is practical, reliable and comfortable with changing priorities.

Experience in a mechanical, mining, transport, construction or trade business would be an advantage.

What we offer

- $85,000–$120,000 per year plus super, depending on your experience and capability.

- A 9-day fortnight.

- Working hours of 7:00 am–4:00 pm or 08:00 am - 05:00 pm
- A diverse role with the opportunity to contribute to how our business operates.

- Direct access to the owners and a team that values practical ideas and getting things done.

- A start date of 18 January 2027.

This role is based in Tennant Creek. Accommodation is not provided.

📌 Office Administrator (Tennant Creek)
🏢 Wilson Diesel Services
📍 Tennant Creek