&IS team, the RAMS Engineer, Testing and Commissioning and the Validation Engineer...Signalling System Engineer The on-board Signaling System Engineer defines, in collaboration with..He/she collaborates mainly with the TSE (Train System Engineer), TCE (Train Control Engineer), the TEE..(Train Electrical Engineer), the train Mechanical Engineers, the SSEs (Sub-System Engineers), the TC..The Signaling System Engineer ensures the integration into the vehicle of the equipment, from a mechanical