Mainline Plumbing & Civil Pty Ltd – Dubbo NSW
Mainline Plumbing & Civil Pty Ltd is a fast-growing plumbing and civil contractor delivering maintenance, construction, and government works across residential, commercial, and civil sectors.
We pride ourselves on professionalism, efficiency, and high-quality service.
Due to continued growth, we are seeking a highly organised and proactiveOfficer Administrationto join our team and support daily operations.
About Us
Mainline Plumbing & Civil Pty Ltd is a fast-growing plumbing and civil contractor delivering maintenance, construction, and government works across residential, commercial, and civil sectors.
We pride ourselves on professionalism, efficiency, and high-quality service.
Due to continued growth, we are seeking a highly organised and proactiveOfficer Administrationto join our team and support daily operations.
About the Role
This is a key role within our business.
As our Office Administrator, you will assist in the daily administrative and operational support functions of our plumbing team.
You'll work closely with management, our plumbers, and our clients to ensure jobs are scheduled correctly, systems are maintained, and communication flows seamlessly.
This position is ideal for someone who enjoys structure, thrives in a busy trade-services setting, and takes genuine pride in accuracy and organisation.
Key Responsibilities
Drive process improvements across scheduling, reporting, and job workflows
Ad hoc admin tasks to be performed
Oversee compliance requirements including inductions, certifications, and documentation




Maintain accurate job records, databases, and compliance documentation
Coordinate scheduling between plumbers and clients
Liaising with clients & suppliers
Monitor workflow and assist with internal reporting
Act as the first point of contact for office enquiries
Drive process improvements across scheduling, reporting, and job workflows
Maintaining accurate records, creating invoices, statements and reports as well as job costings in JMS (SimPRO)
Processing work orders and purchase orders
Liaising with bookkeepers
Preparing reports and documentation
Supporting general office administration tasks
About you
Experience in an Office Administrator or similar role
Strong organisational skills and high attention to detail with time management skills
Excellent written and verbal communication
High attention to detail
Confident using Microsoft Office (Outlook, Excel, Word)
Experience with Asana
Experience with SimPRO (JMS) is highly desirable
Ability to work independently and as part of a team
Professional and reliable with a strong work ethic
What We Offer
A professional, supportive, and well-structured team
Stable, growing company
Opportunity for career progression
Opportunity to take ownership of key administrative functions
Market-competitive salary based on experience
On-the-job training and systems support
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📌 Office Manager (Dubbo)
🏢 Mainline Plumbing and Civil
📍 Dubbo