I joined the RAF - here's the official spiel of the trade:
ICT Technicians are responsible for maintaining and repairing a wide range of complex systems, from long-range search radar to aircraft mission and ground support systems, airfield navigation aids to local area networks. Each of these plays a vital part in processing and communicating the information needed to support effective air operations on a global scale.
As an ICT Technician, you could find yourself working on an airfield, in an underground bunker, office or workshop. Latest generation aircraft are as reliant on information flow as they are on fuel – and it could be your job to set up, operate and maintain the mission and ground support systems that enable the Typhoon aircraft to complete its mission.
There is also potential for extensive overseas travel, helping to set up deployable communications and control systems, sensors and navigation aids for operations and exercises.
I am currently in a cyber security post which has been great. With your sort of degree also consider engineering officers. This method gives you as a graduate the experience you need which you can then use on civvy street once you've had your fill of military life whilst getting paid very well.
There's quite a few from all three services on Hexus.