The job cuts are part of a restructuring of the business, which will see it rebranded as ITV Digital and packaged under the ITV umbrella. Once rebranded, it will sit alongside the commercial terrestrial channel, digital channel ITV 2 and a planned new sports channel ITV Sport.
The restructuring comes as Carlton and Granada look at ways of reducing their investment in the digital terrestrial broadcaster they created to take on rival Sky.
When Carlton and Granada first took on the task, they envisaged investing only £300m in the joint venture. To date, more than £800m has been spent on the broadcaster, which has 1m customers compared with Sky's 5m.
However, the two must spend a further £300m before ONdigital breaks even -- it is expected to do so in 2003 when it reaches 1.7m subscribers.
These problems were recently highlighted when the government excluded changing media ownership rules from the next parliamentary term. Existing legislation prevents Carlton and Granada merging to form a single ITV company and realising further savings.
This, Granada chairman Charles Allen told Tony Blair in a letter leaked to the press last week, would leave Granada vulnerable to a takeover from a foreign predator, which might shut ONdigital down.
The two have also been under pressure from their own investors to cut their losses with ONdigital and close it down.