150 more jobs are to be lost at the Babcock dockyard in Rosyth
Babcock announced in November that 250 jobs would be lost as its contract to build two Royal Navy aircraft carriers neared completion.
The additional posts are to be cut after the firm spent months reviewing its operations.
A spokesman for the company said: “Following a review of our current business structure we have decided to combine our energy and marine operations on site into one cohesive team to optimise performance of our current projects and maximise future opportunities.
“Regrettably in doing this we will reduce our management and support functions by around 150 positions.
“The prospects for Babcock’s operations at Rosyth continue to be good and we remain totally committed to providing a safe and secure environment for our workforce that supports both our current and future operational needs.”