As an Airline Transport Pilot, you will need to master following:

• air traffic control operations
• air transport law
• aircraft flight control systems
• apply signalling control procedures
• aviation meteorology
• balance transportation cargo
• civil aviation regulations
• common aviation safety regulations
• comply with air traffic control operations
• create a flight plan
• ensure aircraft compliance with regulation
• ensure compliance with civil aviation regulations
• follow airport safety procedures
• implement airside safety procedures
• inspect aircraft
• operate two-way radio systems
• perform flight manoeuvres
• perform routine flight operations checks
• perform take off and landing
• undertake procedures to meet requirements for flying aircraft heavier than 5,700 kg
• use meteorological information

More generally, an airline transport pilot is also versed in:

• analyse work-related written reports
• ensure ongoing compliance with regulations
• follow verbal instructions
• geographic areas
• have spatial awareness
• manage financial risk
• operate cockpit control panels
• operate radar equipment
• operate radio equipment
• operate radio navigation instruments
• read 3D displays
• read maps
• supervise crew
• undertake procedures to meet aircraft flight requirements
• visual flight rules

It also helps to know the following:

• carry out navigational calculations
• exert a goal-oriented leadership role towards colleagues
• maintain relationship with customers
• respond to changing navigation circumstances
• communicate with customers
• give instructions to staff
• handle customer complaints
• make independent operating decisions
• respond to customers' inquiries
• use different communication channels
• write work-related reports