network rail careerstrainee train driver jobsnorthern rail jobstranslink jobseast midlands railway jobsA Controller of Site safety or COSS is an individual qualified because of the Network Rail to ensure safe practice for perform happening on or around railway tracks and infrastructure. Their Principal purpose should be to arrange a secure techniqu

network rail careerstrainee train driver jobsnorthern rail jobstranslink jobseast midlands railway jobsA Controller of Site safety or COSS is an individual skilled through the Network Rail to be sure Secure exercise for do the job transpiring on or near railway tracks and infrastructure. Their Main function is always to create a safe system of work