Previous experience as a conductor or in another railroad occupation is required to enter the field.
Mechanical aptitude, good hand-eye coordination, manual dexterity, a detail-oriented personality, leadership ability, strong decision-making and communication skills, and accurate judgment of the speed and distance of moving objects are important. Finally, good hearing, eyesight, and color vision are necessary. Most employers require that engineers pass a physical examination and drug screening tests before being hired. Also, if at any time they fail to meet the necessary health requirements, they may be restricted to working in only certain types of service.