network rail careerstrainee train driver jobsnorthern rail jobstranslink jobseast midlands railway jobsA Controller of Site safety or COSS is a person certified from the Network Rail to be certain safe exercise for work transpiring on or around railway tracks and infrastructure. Their Major job should be to create a safe method of work to guard sta

network rail careerstrainee train driver jobsnorthern rail jobstranslink jobseast midlands railway jobsA Controller of Site safety or COSS is a person certified through the Network Rail to ensure Secure apply for function occurring on or in the vicinity of railway tracks and infrastructure. Their Major function is to set up a safe process of work t