Job Description
Mainline Plumbing & Civil Pty Ltd – Dubbo NSW
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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.
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Due to continued growth, we are seeking a highly organised and proactive Officer Administration to join our team and support daily operations.
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About Us
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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.
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Due to continued growth, we are seeking a highly organised and proactive Officer Administration to join our team and support daily operations.
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About the Role
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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.
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You'll work closely with management, our plumbers, and our clients to ensure jobs are scheduled correctly, systems are maintained, and communication flows seamlessly.
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This position is ideal for someone who enjoys structure, thrives in a busy trade-services environment, and takes genuine pride in accuracy and organisation.
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Key Responsibilities
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Drive process improvements across scheduling, reporting, and job workflows
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Ad hoc admin tasks to be performed
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Oversee compliance requirements including inductions, certifications, and documentation
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Maintain accurate job records,



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