A fantastic prospect has arisen for a motivated and organised Administration Assistant to join the growing team at 1 Service Group.
1 Service Group delivers maintenance services across major infrastructure and commercial sites, including road tunnels, rail networks, and transport assets throughout Sydney.
This full-time position is based in our Castle Hill office and is ideal for someone looking to build a long-term career in administration. You will work closely with our management team, technicians, and clients, providing administrative support that helps keep our operations running efficiently.
About the Role
As an Administration Assistant, you will be responsible for:
Data entry and maintaining accurate records
Scanning, filing, and document management
Assisting with the preparation of client reports
Coordinating with field technicians and management to ensure reports are completed accurately and on time
Proactively following up outstanding information and assisting with problem resolution
Answering and directing incoming phone calls
General office administration and support duties
This is a full-time position, Monday to Friday, 7:30am - 4:00pm, based in our Castle Hill office.




To Be Successful You Will Have
Excellent written and verbal communication skills
Strong keyboard and computer skills
Experience using Microsoft Office (Word, Excel and Outlook)
Ability to quickly learn new software and computer systems
High attention to detail and accuracy
Excellent organisational and time management skills
Ability to prioritise tasks and work in a fast-paced environment
A professional attitude with strong problem-solving skills
Ability to work both independently and as part of a team
A positive attitude and willingness to learn
What We Offer
Full-time, stable employment
On-the-job training and ongoing support
Opportunity to develop your administration career within a growing company
Friendly and supportive team environment
Modern office based in Castle Hill
Opportunities for career progression as the business continues to grow
If you are organised, reliable, and looking to start or grow your career with a successful and expanding company, we'd love to hear from you.
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📌 Administration & Office Support (New South Wales)
🏢 1 Service Group
📍 New South Wales