Outsourcer CSC has inked a deal with the Australian Defence Force (ADF) worth more than $20 million to provide systems administration for the department's join command system.

The Joint Command Support Environment (JCSE) will integrate multiple command systems into a single platform and is part of a series of similar projects, including the integration of command, control and communication systems for the ADF's new $300 million headquarters.

The JCSE will merge new and existing command support systems into an integrated platform from different areas of defence including maritime, air, and special operations.

The contract is the first step in a series of initiatives for the project which the department said will "deliver a single integrated command support system, leveraging from existing command support systems developed for the individual services and for the higher headquarters".

"The Defence Material Organisation will utilise an evolutionary acquisition approach for the project whereby the capability will be incrementally defined and approved by government before delivery."

The JCSE is covered by the ADF's Joint Project 2030, worth between $250 million to $350 million which will boost joint operations between defence departments.