Office Administration Assistant

Karinya Constructions is a boutique residential building company specialising in architect-designed homes and significant renovations across Sydney.

We work closely with architects and homeowners to create thoughtful, beautifully crafted homes — with our guiding philosophy being Creating Peaceful & Happy Homes.

We are looking for an Administrative Assistant to join our small team and help bring greater organisation, consistency and efficiency to the business.

About the role

This is a varied administrative role suited to someone who enjoys organisation, systems, detail and getting things done properly.

You will work closely with the owner/builder and become an important part of the day-to-day operation of Karinya.

Your responsibilities will include:

• General office and administrative support
• Xero administration, including invoices, bills, payments and financial records
• Following up outstanding invoices and maintaining financial administrationProcessing supplier invoices and assisting with accounts payable
• Purchase orders, supplier coordination and procurement administration
• Maintaining project records, registers and documentation
• Preparing and organising project and site documentation
• Assisting with client and architect correspondence
• Maintaining company systems, procedures and records
• Assisting with variations, progress claims and project administration
• Coordinating information between the office, site, suppliers and tradesHelping ensure important tasks are followed up and completed
• Continually improving the systems and processes that keep the business organised

You will not be expected to make construction decisions or have financial authority. Your role is to make sure the administrative side of the business is organised, accurate and running smoothly.

About you

We are looking for someone who is:

• Highly organised and naturally methodical
• Extremely reliable and follows things through
• Detail-oriented and takes pride in accuracy
• Comfortable working with numbers, invoices and financial information
• Confident using computers and learning new software
• A clear and professional communicator
• Able to work independently and take responsibility for their workload
• Comfortable asking questions when something is unclear
• Good at prioritising and keeping track of multiple tasks
• Discreet and trustworthy
• Interested in improving systems rather than simply doing things the way they have always been done
• Previous experience in construction administration, accounts, Xero, property, architecture or a similar small business environment would be highly regarded, but attitude, organisation and capability are more important to us than a particular background.

Why join Karinya?

Karinya is intentionally a small company. That means your contribution will genuinely matter.

You won’t be one person in a large administration department. You will work directly with the owner and have the opportunity to understand how a quality residential construction business operates from the inside.

We are building more than just houses. We are building Karinya as an enduring company — with strong systems, high standards and a culture based on craftsmanship, honesty, collaboration and continuous improvement.

We are looking for someone who would enjoy being part of that.

The position

Position: Administrative Assistant.
Location: Northern Beaches, Sydney. You must be able to travel to site, when required, for various meetings.
Hours: 16-20 hours per work, Tuesday to Thursday.

If you are someone who gets satisfaction from turning chaos into order, keeping things moving and knowing that the details have been taken care of, we’d like to hear from you.

Your application will include the following questions:

• Which of the following statements best describes your right to work in Australia?
• How many years' experience do you have as an office administrator?
• How much notice are you required to give your current employer?
• Do you have experience working on residential construction projects?

What can I earn as an Office Administrator

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