Dozens of state government IT workers will lose their jobs under a push to adopt new technologies that require fewer employees.

About 140 jobs in the Cenitex agency will be slashed or reduced as part of a restructure that began last year.

The union representing the affected workers has slammed the move, saying valuable IT expertise will be lost because of the changes.

Cenitex provides computer services to other government departments, including IT networking, security and cloud services.