The move comes as the company announced it would invest £150m to extend the life of the station to continue generating low carbon electricity until 2028, producing enough power each year to supply the equivalent of 1.5 million homes.
The Dungeness B facility improvement project includes £75m upgrade to control room computer systems and £8m on enhanced flood defenses.
EDF Energy chief executive Vincent de Rivaz said: "The decision to extend the life of Dungeness B is only possible because of the collaboration, innovation and technical expertise of EDF Energy and its long-term partners."
Dungeness B station director Martin Pearson said: ""Life extension means the station will continue to provide hundreds of skilled jobs and provide a launchpad for the apprentices who will begin their careers at Dungeness B.
"We’ll also carry on contributing more than £40 million to the local economy in Kent and East Sussex."
A £150m five-year contract has been signed with Cape plc for the supply of access, insulation and services in support of all EDF Energy’s nuclear power stations.
A contract, worth around £40m every year, has also been signed with Cavendish Nuclear, part of Babcock International, for inspections of reactors graphite, maintaining gas circulators and providing support at all the EDF Energy nuclear stations.
