UNISON is seeking an early meeting with the council to put its view on the proposed job losses - and is not ruling out industrial action.
James Douglas, UNISON Stirling Branch Secretary said: "Without any consultation and without any attempt to discuss alternative methods of saving money, the council has sent us notification that up to 170 jobs are to be made redundant."
UNISON are also angry that the council has been using a firm of consultants - KPMG - to come up with the redundancies at a cost of up to£1m.
In response, Stirling Council Leader Graham Houston said its Diagnostic Programme aimed to deliver more effective and efficient services.
“When we came into administration last year we promised that we would have a root and branch review of Stirling Council to make sure it is fit for purpose.
“The first phase of the review is underway and comprises of three main areas - reviewing management structures, reviewing the way we procure goods and services and reviewing the way we commission social care for vulnerable adults and children.
"From this we expect to make a total saving of£5m which will help in the delivery of frontline services to the people of Stirling”
“There will be no cuts to frontline services but making savings on this scale does mean a reduction in the number of posts by simplifying, streamlining and standardising management structures.
“The Council also has a commitment to minimising compulsory redundancies and this commitment remains."