Unionised Fujitsu workers are planning a "Scrooge" strike a week today and have pencilled further walks outs next year over cuts to jobs, pay and pensions.
According to union Unite, staff will down tools on 18 December and have also set dates out five days in January to protest at 1,000 proposed redundancies, a pay freeze imposed this year and closure of the final salary scheme.
Action planned for last month was avoided at the eleventh hour when Fujitsu agreed to talks and to relax deadlines on job cuts and pensions, but an offer that followed has been rejected by 83% of the 983 members.
The "Scrooge" protest is designed to highlight that Fujitsu Services made £200m profit before tax last year yet paid out £1.6m to compensation to two directors for loss of office.
"Whilst we remain ready and willing to talk at any time, this further rejection of the company's position leaves no doubt - our members [are] saying enough is enough," said Unite joint general secretary Derek Simpson.
"We recognise the effect any industrial action will have on key private and public sector customers and clients of Fujitsu, but the responsibility for this rests squarely with the company for failing to address the issues," he added.
A Fujitsu spokesman said the company was "disappointed that the Unite trade union has decided to announce industrial action whilst consultation continues with the elected employee representatives on the proposed changes to the pension scheme."
"If the industrial action goes ahead, Fujitsu will take measures to ensure that service to its customers is maintained," he added.
A version of this story appeared on Microscope.