Jetstar has outsourced its project management office for a further two years.
The budget airline awarded the contract extension to PM Partners, which has held the role for the past six years.
Jetstar chief information officer Stephen Tame said in a statement that PM Partners would manage a "number of major programs, including the development of a standard services platform across Jetstar Group operations.
"We are continuing to develop service offerings by re-engineering our platforms and processes to make them consistent and deliver against our low cost approach," Tame said.
Continuing projects covered performance management, revenue accounting and the expansion of self-service kiosks to Jetstar's domestic networks in Australia and New Zealand.
When the contract was last renewed in 2009, Tame noted that Jetstar IT had run "lean" since 2004.
"When it comes to projects, the IT team's primary function is to act as a steering group over the delivery, and then to receive the project into the business-as-usual functions," Tame said.
"We need to ensure the IT group can continue to deliver first-class services to the business without us having to maintain huge teams."