As a Railway Electronic Technician, you will need to master following:

• circuit diagrams
• detect malfunctions in train control systems
• electrical systems used in transportation
• electronics principles
• enforce railway safety regulations
• ensure compliance with railway regulation
• ensure safety of mobile electrical systems
• maintain railway signal equipment
• operate railway communication systems
• operate railway control panels
• operate railway warning systems
• read railway circuit plans

More generally, a railway electronic technician is also versed in:

• comply with legal regulations
• electrical wiring plans
• electronics
• follow written instructions
• install electronic communication devices on trains
• maintain records of maintenance interventions
• operate radio equipment
• operate railway vehicles
• test electronic units
• use diagnostic tools for electronic repairs
• write routine reports

It also helps to know the following:

• have computer literacy
• principles of mechanical engineering