Around 200 developers will use the Agitar testing tool and Management Dashboard to build a Java architectural framework for an update to Centrelink Online.
A key platform in the agency's delivery of electronic services, Centrelink Online was orginally developed in Forte.
The new Java framework will be reused across a number of Centrelink applications.
"Centrelink is always developing new applications and improving existing ones," said Centrelink project manager, standard application development environment, Paul Baumgarten.
The government welfare agency has signed a three year enterprise license for the tools. The acquisition follows a successful tender by Agitar partner Software Improvements, based in Canberra.
Jeff Pope, Agitar vice president for Asia Pacific, said the Centrelink order was the vendor's biggest to-date.