Railroad carman. I work for the largest railcar owner in North America. I inspect cars for any maintenance they need.Do testing of the air brake systems,change wheels,weld when necessary,and any other repairs needed.Mainly just try to keep them safe and on the tracks.
You wouldnt believe how many government agencies regulate these hunks of steel rolling down the tracks.Always somebody looking over your shoulder.
I have worked 4-10s for almost 10 years,so it makes for some nice long weekends for my fishing habit.