about backlinks?

Glad to help a local business, I have completed many SEO optimization project for local companies.

The most relevant backlink you can get for your local business is Business Listing/Directory and I am 101% sure that this will boost your ranking, use same address on good sites like SiteJabber, and other listing sites.

Reach to the local bloggers of Australia and get sponsored post or just write as a guest for them and get link from Author Bio section.

Add your business to Google maps and Get Your Keyword Ranked Immediately

Here's how you can add a missing place to Google maps.

Go to the maps.google.com and search your office address, Right click to your address office address and click on the "Add a missing place"

Make use of the name section to get real traffic, in the name section write as "Web Development Company - [Your Company Name]"

Your map will be ranked in the Google instantly and even will be ranked on keywords like "Web Development, Web Development Company" etc

In case you aren't appearing on the search then add good reviews using different account but stay it as real enough.

Yes, Best way to get the backlinks is by off page SEO techniques.

Can you build backlink at each page, Categories, article...is Solutions good for SEO