Engineers watch for signals that indicate speed limits and other information. They must know the signal systems, yards, and stations along their routes. They also must constantly be aware of the condition of their train because this affects braking. Before and after trips, engineers check the locomotives for mechanical problems. They make minor adjustments and report major repairs to mechanics.
Assistant engineers monitor instruments and signals as well as observe the track for obstructions.
However, they are being phased out and their duties are being performed by brake operators. Railroad Engineers is a specialty of Railway Transportation Workers. For more information, see the Railway Transportation Workers occupation. Railroad Engineers is in the Transportation Career Cluster. Wages vary with training, experience and location.